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  • 8/3/2019 Live Line Work Standard

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    Live Line WorkTNM-GS-809-0286

    Issue 1.0, February 2008

    APPROVEDUNCONTROLLED WHEN PRINTED

    COPYRIGHT TRANSEND NETWORKS PTY LTD ALL RIGHTS RESERVEDThis document is protected by copyright vested in Transend Networks Pty Ltd. No part of the document may be reproduced or transmitted in any

    orm by any means including, without limitation, electronic, photocopying, recording or otherwise, without the prior written permission o

    Transend. No information embodied in the documents which is not already in the public domain shall be communicated in any manner

    whatsoever to any third party without the prior written consent of Transend. Any breach of the above obligations may be restrained by legal

    proceedings seeking remedies including injunctions, damages and costs.

    Live Line Work

    Standard

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    CONTACT

    This document is the responsibility of the Transmission

    Services Department, Transend Networks Pty Ltd,

    ABN 57 082 586 892.

    Please contact Transends Environment and Safety

    Manager with any queries or suggestions.

    REVIEW DATE

    This document is due for review not later than May 2009.

    RESPONSIBILITIES

    Implementation

    All Transend staff and contractors.

    Audit

    Periodic audits to establish conformance with this document

    will be conducted by Transends Network Environment and

    Safety Group.

    Compliance

    All Group Managers

    Document Management

    Environment and Safety Manager

    MINIMUM REQUIREMENTS

    The requirements set out in Transend's documents are

    minimum requirements that must be complied with by

    Transend staff and contractors, including designers and

    other consultants. The user is expected to implement any

    practices which may not be stated but which can reasonably

    be regarded as good practices relevant to the objective ofthis document without non-compliance with the specific

    requirement of this document. Transend expects the users to

    improve upon these minimum requirements where possible

    and to integrate these improvements into their procedures

    and quality assurance plans.

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    CONTENTS

    1 GENERAL 5

    1.1 Purpose 51.2 Scope 5

    1.3 Definitions 5

    1.4 References 5

    2 LIVE LINE WORK 6

    2.1 Recognition of Live Line Work 6

    2.2 Compliance with Codes, Procedures and Guidelines 6

    2.3 Work Procedures 6

    2.4 Live Line Work Methods 6

    2.4.1 Live Line Stick Method 6

    2.4.2 Glove and Barrier Method 8

    2.4.3 Bare Hand Method 10

    2.4.4 Use of Helicopters 11

    2.5 Competencies Required 13

    2.5.1 The Service Provider 13

    2.5.2 Live Line Worker Attributes and Training 13

    2.6 Tools and Equipment 14

    2.6.1 General Requirements 14

    2.6.2 Frequency of Testing 14

    2.6.3 Cranes 142.6.4 Conductor Support Equipment 15

    2.6.5 Rope 15

    2.6.6 Insulating Barriers 15

    2.6.7 Protective and Conductive Clothing 15

    2.6.8 Insulating Ladders 16

    2.6.9 Availability of Tools 16

    2.6.10 Storage and Handling of Tools 16

    2.6.11 Inspection Prior to Use 16

    2.6.12 Disposal of live line tools and clothing 16

    2.7 Safety Observer 16

    2.8 Working Practices and Conditions 17

    2.8.1 Work Briefings 17

    2.8.2 Minimum Safe Approach Distances 17

    2.8.3 Weather 17

    2.8.4 Fault Protection 18

    2.8.5 Auto-Reclose Facility 18

    2.8.6 Work Team Communications 18

    2.8.7 Public Safety 18

    2.8.8 Work on De-energised Components 182.8.9 Use of Cranes 18

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    2.8.10 Suspension of work 19

    2.8.11 Identification of Hazards 19

    2.8.12 Insulating Barriers 19

    2.8.13 Use of Ladders 19

    2.8.14 Other work on the Site or Circuit 192.8.15 Integrity of Mechanical Properties 19

    2.8.16 Integrity of Electrical Properties 19

    2.8.17 Insulator Washing 20

    2.9 Procedures in the Event of an Incident 20

    2.10 Guidelines for Work Procedures 20

    3 COMPLIANCE AND PERFORMANCE AUDIT 21

    4 RESPONSIBILITIES 22

    4.1 Maintenance of Standard 22

    4.2 Implementation 22

    5 LIVE LINE PERMITTOWORK 22

    5.1 General Requirements Before Issue 22

    5.2 Live Line Permit to Work Issue Procedure 22

    6 LIVE LINE ISSUING OFFICER AUTHORISATION 23

    6.1 Live Line Issuing Officer Authorisation Process 23

    6.2 Cancellation of Live Line Issuing Officer Authorisation 23

    6.3 Regaining Live Line Issuing Officer Authorisation 24

    6.4 Renewal of Live Line Issuing Officer Authorisation 24

    LIVE LINE ISSUING OFFICER AUTHORISATION 26

    LIST OF TABLES

    Table 1- Minimum Safe Approach Distances .............................................................................................. 7

    Table 2 - Minimum Number of Sound Insulators ........................................................................................ 7

    Table 3 - Maximum Use Voltage................................................................................................................. 8

    Table 4 - Minimum Safe Approach Distances for AC Systems................................................................. 10

    Table 5 - Minimum Number of Sound Disc Insulators.............................................................................. 11

    Table 6 - Minimum Safe Approach Distances for AC Systems................................................................. 12

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    1 GENERAL

    1.1 PURPOSE

    This document defines the minimum safety standards and controls to manage live line work and itsassociated risk on Transend Assets. The objective is to achieve a high standard of safety for line

    workers and a satisfactory level of security for the transmission system.

    1.2 SCOPE

    The information contained in this standard applies to all persons and companies conducting live

    line work on transmission network apparatus under the control of Transend Networks Pty Ltd.

    This standard sets the minimum mandatory levels of live line work that may be enhanced by

    Service Provider standards, providing that any standards do not result in a reduced level of safety.

    Nothing in this standard overrides statutory requirements. This standard does not constitute a live

    line training manual, nor does it set down live line working procedures. In all cases these essential,

    additional items shall be developed and implemented by the Service Provider to comply with thisstandard.

    This standard does not include work in testing stations for high voltage equipment refer to IEEE

    standard 510 Recommended Practices for Safety in High Voltage and High Power Testing.

    1.3 DEFINITIONS

    The use of consistent terminology is essential to avoid confusion and improve safety. The

    terminology used is as defined by:

    ENA Guidelines for Live Line Work, ENA LLM 01, 02, 03 - 2006;

    Power System Safety Rules;

    The following definitions also apply:

    Transend is Transend Networks Pty Ltd.

    The Operating Authority is Transend.

    1.4 REFERENCES

    ANSI/IEEE 516, Guide for Maintenance Methods on Energised Power Lines.

    ANSI/IEEE 978, Guide for In-Service Maintenance of and Electrical Testing of Live Line Tools.

    ENA LLM 01-2006, Guidelines for Live Line Bare Hand Work.

    ENA LLM 02-2006, Guidelines for Live Line Stick Work.

    ENA LLM 03-2006, Guidelines for Live Line Glove and Barrier Work.

    ESAA, 1995, Guidelines for use of Helicopters for Live Line Work, ND/NL-04, ESAA,

    Melbourne.

    IEC 895, Specifications for Conductive Clothing for Live Working at Nominal Voltage up to

    800 kV AC.

    IEEE 1067, Guide for In Service Use, Care, Maintenance and Testing of Conductive Clothing for

    Use on Voltages up to 765 kV AC.

    Transend, Aurora, Hydro, Alinta, Power System Safety Rules.

    Transend Networks, Document & Drawing Preparation, Issue and Numbering Standard, TNM-GS-

    809-0101.

    Transpower, 1995, Safety standards for live line work on Transpower transmission lines, TP.ML

    11.06 Issue 1.0.

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    2 LIVE LINE WORK

    2.1 RECOGNITION OF LIVE LINE WORK

    Live line work is work performed on or near components of a transmission network circuit that is

    capable of being energised to high voltage without implementing the full protective practice of

    isolating, proving de-energised and earthing at the work site. A task shall also be live line workwhen Transend declares that it is live line work or when any part of a helicopter and attachments,

    including any supported person or load, is within 5 metres of a transmission network circuit

    capable of being energised without implementing the full protective practice of isolating, proving

    de-energised and earthing at the work site.

    2.2 COMPLIANCE WITH CODES, PROCEDURES AND GUIDELINES

    All work is to comply with:

    the Power System Safety Rules;

    ENA / ESAA Guidelines; and

    this standard.

    2.3 WORK PROCEDURES

    The Service Provider is to develop and issue work procedures for all live line tasks in accordance

    with ENA / ESAA guidelines. Live line work is only to be carried out in accordance with these

    work procedures. On-site modifications to work procedures that have the potential to reduce the

    level of safety are prohibited.

    The Service Provider is to ensure that Transend has been provided with a current copy of the work

    procedures to be used and Transend is informed in writing of the site specific details. The aim of

    the procedure is to identify and communicate risk and show how the risks are to be managed by the

    Service Provider.

    Live line work shall not commence until Transend advises the Service Provider that it has reviewed

    the procedures. The Service Provider is to allow sufficient time for this review to occur. To assist

    Service Providers, a guide to work procedures is included in this standard.

    The Service Provider is to ensure that work procedures are proven in a trial on de-energised

    components to verify the work can be carried out reliably and safely with the resources listed.

    An authorised and approved copy of the live line procedure being carried out is to be available at

    the work site.

    2.4 LIVE LINE WORK METHODS

    All live line work shall be performed under a Live Line Permit to Work. The Live Line Permit to

    Work shall be issued in accordance with Appendix A of this standard.

    2.4.1Live Line Stick Method

    (a) Minimum Safe Approach Distances for Live Line Stick Work

    The live line stick method is based on the principle that the lineworker always maintains a

    minimum approach distance from any energised high voltage line and apparatus while

    performing work using tools and equipment fitted to insulating live line sticks. The

    minimum approach distances are stated in Table 1 and are based on a maximum transient

    over-voltage of three times rated voltage with an inadvertent movement distance of 300mm.

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    Table 1- Minimum Safe Approach Distances

    Nominal

    AC

    Voltage(kV)

    Minimum Safe

    Approach Distance

    Phase to Earth(mm)

    Minimum Safe

    Approach Distance

    Phase to Phase(mm)

    11 330 350

    22 380 425

    110 940 1290

    220 1580 2260

    All clothing, including body belt straps, shall be secured to prevent the minimum approach

    distance from being compromised.

    Tool insulation distances (the total length of insulating material less metal end fittings and

    hand hold areas) shall not be less than the minimum approach distance.

    (b) Live Line Stick Work and Disc Insulators

    During live line stick work the minimum number of electrically sound and functioning disc

    insulators, in addition to any bonded (shunted) discs, should be as stated in Table 2.

    Table 2 - Minimum Number of Sound Insulators

    Nominal Line

    Voltage

    AC kV (rms)

    Minimum Number

    of Electrically

    Sound Disc

    Insulators

    up to 33 2110 4

    220 7

    Live line stick work may be performed with fewer sound insulators than shown provided the

    Service Provider has specific work practices for that situation. These may include properly

    coordinated temporary air gaps or surge arresters fitted in the vicinity of the work site.

    (c) Elevated Working Platforms for Live Line Stick Work

    Elevated working platforms (EWP) and associated materials handling devices are to comply

    with ENA guidelines. The elevated working platform is to be earthed in accordance with the

    Service Providers procedures. Where hydraulic couplings are provided on the platform for

    tools, the tools shall be of a type approved for live line work and shall use a combination ofinsulating hoses and oil approved and tested for live line use.

    (d) Conductive Clothing for Live Line Stick Work

    Conducting footwear including socks shall be provided by the Service Provider, and should

    be worn, when it is considered that the uncontrolled discharge of electrostatic charges could

    affect lineworkers comfort and safety. Conductive clothing shall be worn where necessary

    to limit discomfort from induced static discharges.

    (e) Live Line Sticks

    Hollow sticks are not acceptable due to difficulties in maintaining their electrical integrity.

    The live line minimum approach distance should be indicated on the insulating stick for the

    voltage being worked. Timber live line sticks shall not be used.

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    2.4.2Glove and Barrier Method

    (a) General Glove and Barrier Techniques

    The live line glove and barrier method is based on the principle that the lineworker always

    maintains a minimum of two levels of insulation to prevent phase to earth or phase to phase

    contact. This is achieved by wearing appropriately rated and tested insulating gloves andsleeves, and always working from an approved elevated working platform or insulating

    platform and never directly from a ladder, pole or structure. Additional protection for the

    lineworker is provided by using insulating barriers and fitting on insulating basket liner in

    the EWP. This technique is never to be used on voltages above 33 kV AC rms phase to

    phase. Procedures must be developed to ensure that work is conducted on one phase at a

    time.

    Service Providers must ensure that all Glove and Barrier procedures emphasise that all

    components in the immediate work area that could be at a different potential from those

    being worked on by the live line worker, shall be covered with insulating barriers. This

    includes energised conductors, earthed conductors or stay wires that are within reach of the

    live line worker.(b) Combination of Glove and Barrier with Stick Methods

    Work procedures using a combination of Glove and Barrier and Stick methods shall ensure

    that safety margins are not compromised by live line sticks entering within one metre of the

    live line worker. Service Providers are to ensure that Glove and Barrier methods are not used

    from an insulated elevated platform while a line worker is carrying out stick methods from

    the same platform or from a pole or structure.

    (c) Protective Clothing for Glove and Barrier Methods

    All live line workers shall wear insulating eye protection, Gloves and Sleeves at all times

    while within one metre of energised lines or components. Any live line worker changing

    from the stick method shall ensure that insulating Gloves and Sleeves are worn before

    coming within one metre of energised components or lines.

    Insulating Glove, Sleeves and Flexible Barriers designed for High Voltage live line work are

    available in four classes as per Table 3.

    Table 3 - Maximum Use Voltage

    Class

    Maximum Use

    Voltage kV

    (Phase to Phase)

    1 7.5

    2 17.03 26.5

    4 36.0

    The Service Provider shall ensure that insulating gloves and sleeves are cleaned and dried in

    accordance with manufacturers instructions. Gloves are not to be worn inside out.

    Insulating gloves and sleeves are to be stored protected from mechanical or chemical damage

    and in their respective storage bags without creasing and not stored inside out.

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    Before use, insulating gloves and sleeves shall be:

    field air-tested;

    visually inspected both inside and out for pin holes, cuts, scratches, ageing,

    abrasions, corona cutting or mechanical damage; of the correct class for the circuit voltage;

    clean and dry; and

    dusted internally with pure talcum powder.

    Cotton clothing is to be worn under insulating sleeves and cotton gloves covering the wrist

    beneath the insulating gloves. Clean leather protective gloves are to be worn over insulating

    gloves at all times. Protective gloves that have been heavily contaminated by any oil based

    substances, to the extent that insulating gloves and sleeves may be damaged, shall be

    discarded.

    (d) Insulated Elevating Work Platforms for Glove and Barrier Methods

    Elevating work platforms and associated materials handling devices are to be designed for

    live line glove and barrier method and comply with the ENA guidelines. It shall be fitted

    with:

    an insulated section in the upper boom rated to 60 kV;

    an approved insulating liner rated to 50 kV fitted into the basket;

    a safety belt attachment point; and

    a non slip surface.

    Where hydraulic couplings or tools are provided on the platform or upper boom, all the

    hoses connected to tools and the lower boom shall be non-conductive, tested and approvedfor live line use. Only approved hydraulic tools with insulated hoses and oil shall be

    permitted.

    The Service Providers procedures are to ensure that any elevated working platform is

    inspected immediately prior to use for the following:

    high voltage test certificate is current;

    all insulating components are to be visually inspected and wiped clean with asilicone impregnated cloth;

    the insulating boom and basket are free of debris; and

    the chassis of the elevated working platform is to be effectively earthed inaccordance with the Service Providers procedures before Glove and Barrier

    procedures are carried out.

    The Service Provider is to take such measures as to ensure that during use the insulated

    boom or basket shall not contact uninsulated conductors or earthed objects. All persons at

    ground level or potential are to be kept clear while live line Glove and Barrier work is being

    performed.

    The Service Provider shall ensure that if any work is carried out on the insulated elevated

    working platform that could affect its insulating qualities then the elevated working platform

    is to be tagged as not to be used for Glove and Barrier methods until it is successfully

    electrically tested.

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    Where an elevated work platform or insulating platform is to be used between circuits then

    adequate insulating barriers rated for the higher voltage are to be fitted to the lower circuit

    and a minimum clearance of 300mm maintained between the platform and the lower circuit.

    2.4.3Bare Hand Method

    (a) Bare Hand Working Methods

    Live line bare hand methods allow live line workers wearing conductive clothing to perform

    work in contact with energised components while insulated from earth or other electrical

    potential.

    The minimum safe approach distances as per Table 4, shall be strictly observed at all times.

    Table 4 - Minimum Safe Approach Distances for AC Systems

    Nominal Line

    Voltage (kV)

    Minimum Safe

    Approach Distance

    Phase to earth (mm)

    Minimum safe

    Approach Distance

    Phase to Phase (mm)

    11 330 350

    22 380 425

    110 940 1290

    220 1580 2260

    These air gaps are calculated using a maximum transient over voltage factor of three and an

    inadvertent movement distance of 600mm up to 66 kV and 300mm for higher voltages. A

    greater inadvertent movement tolerance may be applicable depending upon the ergonomic

    considerations, environment and the procedure.

    Bonding tails and other items are to be secured to prevent any chance of unravelling and

    subsequent infringement of the minimum safe approach distance.

    The bare hand live line worker shall effectively bond their suit to energised metal.

    Conductive gloves may be used for initially bonding to a conductor so long as the worker is

    not connected to any other worker or large item of equipment. The initial charging current

    may be significant so where the worker is connected to others or to equipment then initial

    contact should be made by means of a conductive wand or clamp.

    Work Procedures are to be designed to ensure that the bare hand line worker does not allow

    their conductive clothing to bridge line components at different potential. Bonds are to be

    placed where this may occur such as when separating two components in an insulatorassembly.

    Where live line rope hoists are used to transfer live line workers to energised conductors, an

    independent safety rope of equivalent electrical properties to the live line rope shall be used

    to secure them to the line. Whenever practical, a length of live line stick shall be used in

    series with the live line rope to increase the electrical security.

    (b) Protective Clothing for the Bare Hand Method

    Conductive overalls including head covering, conductive gloves, conductive socks and

    conductive boots shall be worn at all times by line workers energised at line potential. All

    items of clothing are to be securely bonded together and the hood is to be worn over the peak

    of the safety helmet to ensure the face is shielded. Other work clothing is to worn under thesuit. Protective gloves may be worn over the conductive suit but if they are nonconductive

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    then they must not be fitted until after the worker has completed bonding.

    Procedures shall remind Bare Hand live line workers that metal jewellery, belt buckles and

    watches, mobile phones etc. are not to be worn since heat may be generated by induced

    circulating currents.

    (c) Bare Hand Method and Insulator Strings

    Conductive suits should not be allowed to degrade the performance of insulator strings.

    Where contact between the suit and discs in the string is likely then a bond shall bypass the

    discs involved.

    Strings containing porcelain disc insulators shall have each disc electrically tested prior to

    performing live line bare hand maintenance work within the minimum safe approach

    distance of the string. This testing should preferably be performed immediately prior to

    starting work. This requirement does not apply to glass disc, synthetic and long rod

    insulators.

    Approved instruments and techniques shall be used to ensure defective insulators are

    detected. Instruments used to test insulators should be capable of reliably detecting defectiveinsulators and buzz sticks are not to be used. The voltage across each disc in the string is to

    be recorded if a line voltmeter is used.

    At all times during live line bare hand work performed within the safe approach distance of a

    glass or porcelain disc insulator string, the minimum number of electrically sound and

    functioning disc insulators, in addition to any bonded (shunted) discs, shall be:

    Table 5 - Minimum Number of Sound Disc Insulators

    Nominal Line VoltageAC

    kV

    Minimum Number of Electrically

    Sound Disc Insulators

    Up to 66 3

    110 4

    220 7

    Live line Bare Hand work may be performed with fewer sound insulators than shown

    provided properly coordinated temporary air gaps or surge arresters are fitted in the vicinity

    of the site work.

    Any insulator or insulator string exhibiting significant signs of distress such as louder than

    normal noise levels or visible signs of intermittent surface discharging shall not be changed

    using live line Bare Hand techniques irrespective of the number of sound disc insulators in

    the string or circuit voltage.

    2.4.4Use of Helicopters

    (a) General Requirements for Live line Helicopter Work

    The Service Provider shall supply helicopters in accordance with ESAA guidelines. Single

    engine helicopters should not be used where the emergency recovery procedure requires the

    aircraft to climb or where workers are suspended.

    Prior to the work commencing, the Service Provider shall identify any hazards that have a

    potential to impact on the safe outcome of the work. This is to include the condition of anyline or structure for damage, corrosion, defective insulators, over-crossings, vegetation etc.

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    A Safety Observer is not generally required for routine tasks. However, if during the works

    planning process safety risks are identified then a Safety Observer is to be appointed.

    The minimum safe approach distances are:

    Table 6 - Minimum Safe Approach Distances for AC Systems

    Nominal Line

    Voltage (kV)

    Minimum

    Helicopter

    Clearance

    Phase to Earth (m)

    MinimumHelicopter

    Clearance

    Distance Phase to

    Phase (m)

    up to 66 1.4 1.6

    110 1.7 2.0

    220 2.5 3.2

    These air gaps are based on a transient over-voltage factor of 3, for altitudes up to 900m and

    a 0.9 metre tolerance for differential conductor movement, construction tolerances and the

    degrading effect on the electrical strength of the air gap due to the helicopter acting as a

    charging and discharging electrode during bonding and un-bonding. Additional allowanceshall be made by the Service Provider to ensure that helicopter parts or rotors, the maximum

    reach of the worker, inadvertent sagging or dropping of tools or bonding wands will not

    enter the minimum clearance distance. Altitude correction factors shall apply to work above

    900m.

    All tools and equipment used shall be designed and tested for helicopter live line work.

    Live line work shall cease when the helicopter pilot considers the general weather, visibility,

    wind or turbulence may impact on the safety of flying operations.

    Effective communications shall be provided between the helicopter crew, live line workers,

    ground support crew and Safety Observer if one has been appointed. If the pilot cannot

    maintain effective continuous observation of any live line workers during helicopter slingoperations then the Service Provider shall provide suitably trained helicopter crew to carry

    out this role.

    The Service Provider is to effectively manage any public safety issues including traffic

    control and keeping members of the public clear of the work site and the landing zone.

    (b) Protective Clothing for Live Line Helicopter Work

    Conductive clothing including overalls with head covering, conductive gloves, conductive

    socks and conductive boots shall be worn at all times by line workers and all helicopter crew.

    All items of clothing are to be securely bonded together and to the helicopter. Other work

    clothing is to be worn under the suit. Protective gloves may be worn over the conductive suit

    but if they are nonconductive then they must not be fitted until after the worker has

    completed bonding.

    (c) Bonding for Live Line Helicopter Operations

    All tools and the live line worker shall be bonded together using robustly constructed leads

    with a resistance of less than one ohm. Breakaway attachments shall be provided for all tools

    and equipment to simultaneously connect the helicopter, the live line worker and the line.

    The main bonding lead shall be designed to be pulled free without damaging the line or the

    helicopter.

    Where the live line worker is bonded to a large conductive object such as a platform or

    helicopter, initial bonding on to the conductor shall be made by means of a conductive wand

    or clamp.

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    2.5 COMPETENCIES REQUIRED

    2.5.1The Service Provider

    The Service Provider shall have experience of conducting live line work and shall have procedures

    in place to comply with the appropriate ENA / ESAA guidelines for live line work.Service Providers engaged in helicopter work shall be certified to ISO9000 or an equivalent quality

    standard. The Service Provider will hold a current Air Operators Certificate (AOC), including low

    flying and sling operation if appropriate.

    The Service Provider shall establish and maintain records and a system of audits to demonstrate

    that live line workers are suitable for the work, fit, trained and certified including a medical

    examination by a qualified Occupational Health Practitioner. Certificates of Competency for each

    technique shall expire one year after appropriate refresher training for each technique. Certificates

    should display:

    the name of the holder;

    expiry date;

    name of issuing organisation;

    certified voltage level;

    certificate number;

    work techniques in which the holder is competent; and

    name and signature of the issuing instructor.

    Live line workers are to be certified on the live line method they are using. The Service Provider is

    to provide each live line worker with manuals for the work for which they are qualified:

    Live Line Stick manual;

    Live Line Glove and Barrier manual;

    Live Line Bare Hand Work manual; and

    Helicopter Live Line Work manual.

    Manuals shall comply with ENA / ESAA guidelines.

    2.5.2Live Line Worker Attributes and Training

    The Service Provider is to ensure that all personnel associated with live line work shall:

    have a proven safety record;

    have demonstrated competency on equivalent dead line work;

    be currently certified as a line worker;

    be authorised to operate equipment as appropriate, eg. elevated platform; and

    have demonstrated a degree of responsibility, conforming to rules and procedures, theability to concentrate on critical tasks and the capability of working in a team.

    Training is to include:

    thorough understanding of live line principles;

    care of all tools and equipment;

    practice of the required techniques on de-energised lines followed by their application onenergised lines; and

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    electrical rescue and cardio-pulmonary resuscitation (CPR).

    All training, including refresher training, is to be carried out under the direct and immediate

    supervision of an instructor certified in the procedures being taught. Refresher training covering

    concepts, safety and deficiencies found shall be carried out at least once in every twelve month

    period and may be carried out on the job. Training is not to be conducted on Transend

    transmission network equipment without advising Transend of the procedures to be followed and

    receiving permission from Transend.

    Helicopter pilots are to be qualified and trained in accordance with ENA / ESAA guidelines.

    Helicopter support ground crew shall be trained in:

    fire safety;

    helicopter refuelling procedures;

    a knowledge of the techniques used by the helicopter live line worker;

    safe use and control of helicopter landing sites;

    ground to air communications and flight following system; and electrical rescue and CPR.2.6 TOOLS AND EQUIPMENT

    2.6.1General Requirements

    The Service Provider shall ensure that all sticks, tools, insulating rope, ladders and insulating

    equipment are designed, tested and approved for working on energised high voltage lines as per

    ENA / ESAA. guidelines. Non-approved tools shall not be used.

    Live line equipment shall meet all relevant standards and be provided with a current test certificate

    or label indicating that it has passed the relevant test conducted by an approved authority.

    Inspection and maintenance of tools shall comply with ANSI / IEEE: 978.

    The Service Provider will use a tool management and maintenance system that records purchase,inspection, maintenance and testing in accordance with ENA / ESAA guidelines.

    2.6.2Frequency of Testing

    Service Providers will ensure that all elevated working platforms comply with AS 1418 Part 10 and

    are tested at least once every six months. Where applicable, the insulating qualities of the upper

    boom, hydraulic circuit and detachable hydraulic hoses are to be tested at least once every six

    months.

    The basket and liner are to be tested at an electrical testing facility in accordance with

    ANSI/SIAA92.2 at intervals not exceeding twelve months.

    Insulating rope is to be tested at an interval not exceeding six months.

    Insulating Gloves and Sleeves designed for Glove and Barrier methods are to be tested at an

    interval not exceeding six months.

    All other tools, barriers, boots, jumpers, drop out tools, sticks or poles are to be tested at least once

    every twelve months.

    Items without a current test certificate or those that have been repaired or modified are not to be

    used and shall be tagged as not for use pending test.

    2.6.3Cranes

    Where cranes are used in live line procedures they should be of sufficient rated mechanical

    capacity and earthed in accordance with the Service Providers procedures.

    For bare hand live line working, the earth connection shall be rated to not less than the estimatedfault current at that site and, where practical, the crane shall be earthed and bonded to the nearest

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    structure to create an equipotential work zone.

    A delineated work area shall be created around the crane using ropes and barrier markers while live

    line work is being performed.

    Approved insulating material, no shorter than the minimum safe approach distance, shall be fitted

    between the hook and the energised parts. It shall be rated to exceed the mechanical load. Any part

    of the crane that is not insulated shall not encroach in to the minimum safe approach distances.

    Consideration should also be given to the movement of any conductor due to the wind or a change

    in temperature.

    Where cranes are used to support personnel they must meet the standards of a Class 4 crane as in

    AS 1418 Part 7. The working load limit of the insulation used to support line workers shall not be

    greater than 10% of the minimum failing load of the insulation.

    2.6.4Conductor Support Equipment

    All conductor support equipment shall be capable of supporting the rated voltage, mechanical load

    and be approved and tested to ASTM: F711 or equivalent.

    The conductor span weight shall be determined prior to use by the Service Provider.

    2.6.5Rope

    There are three kinds of rope:

    (i) Common rope shall not be used;

    (ii) Insulating rope is designed, manufactured and managed as an insulating tool for full phaseto phase voltage. It shall be kept clean and dry, not used for other purposes, marked and

    routinely electrically tested. It shall be visually inspected prior to each use;

    (iii) Live line rope is normal synthetic rope which is kept clean and dry, but which has noguaranteed insulating properties and shall not be used inside the minimum safe approach

    distance. It may be used outside the minimum safe approach area in series with an

    insulating or composite insulator to provide the required electrical properties.

    2.6.6Insulating Barriers

    The Service Provider shall ensure that insulating barriers are inspected immediately prior to use for

    holes, tears cuts, corona cutting or chemical deterioration. They should be cleaned and dried in

    accordance with the manufacturers instructions.

    Insulating blankets shall be stored flat or rolled, not creased, compressed or bound with tape.

    Insulating hoses and connector covers should be stored and transported in boxes designed to the

    manufacturers instructions.

    The maximum voltage at which insulating devices may be used should never exceed themanufacturers specifications.

    2.6.7Protective and Conductive Clothing

    The Transend PPE Standard TNM-GS-809-0313 will apply to Live Line work. Additional

    specialist equipment for live line work , such as: gloves, boots, suits etc. may be required.

    A risk assessment must be undertaken to determine the appropriate equipment.

    All equipment selected for live line work shall be tested and inspected in accordance with

    manufacturers requirements.

    Conductive clothing is to include boots, socks, gloves and suits with a hood. Conductive clothing

    is to be inspected before use for tears or wear. Conductive clothing is to be maintained and tested in

    accordance with IEEE 1067 and IEC 895. If the resistance of the suit increases by more than 15%

    above the value when new, then the suit is to be marked as defective and discarded. Rips may be

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    repaired by overlapping but the resistance of the repaired area shall be shown to be not less that an

    equivalent undamaged area.

    Conductive boots shall meet relevant safety boot standards in respect to steel toe footwear. They

    shall be clearly marked as conductive footwear meeting the requirements of ANSI Specification

    Z41.3.

    2.6.8Insulating Ladders

    Insulating ladders used to transport live line bare hand workers to energised conductors shall be

    specifically designed and tested for this purpose. The insulation performance of the ladder shall not

    be less than an equivalent length of live line stick.

    Insulating ladders shall be inspected and tested prior to every use. Leakage currents are to be

    monitored for a minimum of one minute. The maximum allowable leakage at any time shall be one

    micro Amp per applied kV. Where airborne contaminants or moisture could degrade the ladder

    insulation, continuous monitoring of the leakage current is recommended.

    2.6.9Availability of Tools

    Service Providers are to ensure that tools, equipment, clothing and barriers required by theapproved Work Procedure being conducted are available to live line workers at the work site in

    sufficient quantity, quality and dimension.

    2.6.10 Storage and Handling of Tools

    Service Providers will introduce work practices to ensure:

    tools which do not have a current test certificate or are defective are labelled andsegregated from other serviceable tools;

    tools shall not be laid directly on the ground;

    any contamination such as grease, oil, skin cream, fuel or solvent is removed; and

    tools are transported and handled with care to avoid degradation of their insulatingproperties due to dirt, creasing, abrasion or moisture.

    2.6.11 Inspection Prior to Use

    Service Providers shall introduce work practices to ensure that prior to use:

    each tool has a current test certificate;

    each tool is clean and dry; and

    each tool is visually inspected for defects.

    2.6.12 Disposal of live line tools and clothing

    The service provider is to dispose of unserviceable live line clothing and tools in such a manner, by

    permanently marking or destroying to ensure that they will not be used for live line work again.

    2.7 SAFETY OBSERVER

    The Service Provider is to ensure a sufficient number of certified workers are available on the work

    site to complete the task and to provide a Safety Observer. A Safety Observer shall be appointed:

    during all live line stick work;

    during all live line glove and barrier work;

    during all live line bare hand work; and

    when carrying out non-routine helicopter operations or if during the work planning processof routine helicopter operations safety risks are identified.

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    The Safety Observer shall:

    understand and carry out the role of the Safety Observer described in the Power SystemSafety Rules;

    be certified to carry out the particular live line method; and be appointed by the Person in Charge before work commences.

    The Safety Observer shall have the authority to stop work at any time so that the work team can

    review their actions and enable the work to proceed or to be stopped. The Safety Observer shall

    perform the role of a Safety Observer exclusively and not perform any other task.

    Work is to be stopped if the appointed Safety Observer is not on the site; is not in a position to

    observe the work or is not in effective communication with members of the work team.

    2.8 WORKING PRACTICES AND CONDITIONS

    2.8.1Work Briefings

    The Service Provider is to ensure that all live line workers, including Safety Observers, helicoptersupport crew and pilot, are briefed before live line work commences. Briefings are to include:

    why the work is to be done;

    what is to be accomplished;

    how the work is to be carried out in line with Live Line Work Procedures; and

    who will do what.

    Information should include site and circuit information, how the work is to progress using the Live

    Line Work Procedures and techniques described, any hazards at each stage, the contingency

    measures in place and the required actions in case of an incident.

    2.8.2Minimum Safe Approach Distances

    Maintaining minimum electrical clearances, as given in this standard, is only a subset of the

    integrated safety management system. Service Providers are expected to effectively manage the

    overall risk of on-site live line operations and conduct a risk assessment that may increase these

    minimum electrical clearances. Consideration must be given to:

    allowance for conductor movement;

    the duration of incursion;

    the number of live line workers involved;

    increased likelihood or dimension of switching surges;

    the likelihood of inadvertent movement; and

    the use of cranes, excavators or other large planes of metal.

    Minimum safe approach distances less than those given in Tables 4 and 6 may be used for bare

    hand or helicopter work only if the maximum transient over-voltage expected are known to be

    lower than the value assumed in ENA / ESAA guidelines or provided properly coordinated

    temporary air gaps or surge arresters are fitted in the vicinity of the work site, ref ANSI / IEEE

    standard 516. Transend are to be informed of all assumptions, calculations and equipment prior to

    any work commencing.

    2.8.3Weather

    Live line work is to cease if:

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    an electrical storm is expected or observed in the vicinity of the work site or the circuit;

    rain, mist, fog, smoke, snow or sleet is present unless using tools or techniques specificallyapproved for the site conditions;

    any threat of rain, mist, fog, snow or sleet while using insulating rope;

    windy or blustery conditions likely to threaten safe working or produce excessivemovement of tools, conductors, cranes, helicopter or platforms; or

    sufficient light is not available.

    2.8.4Fault Protection

    The circuit is to be fitted with devices to detect fault conditions and open the circuit. These devices

    are to be in an operational state during live line working. In the event of a circuit trip, a reclose is

    not to be attempted until:

    the safety of the work team or teams has been established;

    all work team or teams have confirmed that they are clear of the circuit; and

    authorisation to reclose the circuit is obtained from Transend.

    2.8.5Auto-Reclose Facility

    The Service Provider is to document and implement Work Procedures to ensure that each auto-

    reclose facility on the circuit is identified, disabled and tagged out of service before issue of the

    Permit to Work allowing live line work to commence. Approval from Transend is to be obtained to

    disable auto-reclose facilities.The Work Procedure is to ensure that each auto reclose facility shall

    be returned to service once all work teams working on the circuit have completed work and

    approval has been obtained from Transend.

    2.8.6Work Team Communications

    Service providers shall ensure each live line work team establishes and maintains an effective andcontinuous on-site two-way communication link with the system controller. The effectiveness of

    the link is to be checked at regular intervals during the course of the work. Service providers shall

    also provide an additional communication system between pilot, line worker, safety observer and

    ground based work team members for helicopter operations.

    2.8.7Public Safety

    The Service Provider is to ensure that members of the public or personnel not related to the live

    line operation are to keep clear of the work site.

    2.8.8Work on De-energised Components

    Live line practices, including helicopter practices, may be used on de-energised componentsprovided all work is undertaken and all procedures fully observed as though the circuit is energised.

    Service providers utilising Transend assets for live line training purposes shall gain approval from

    Transend. The description of work will include the training of linesmen in live line methods and

    the requirements of isolation and earthing where appropriate.

    2.8.9Use of Cranes

    The crane operator is to be under the direct supervision of one nominated member of the live line

    team. Prior to work, crane operators are to be:

    introduced to the site;

    instructed on safe working distances on the site and why they are to be enforced;

    briefed on the operation to be performed, methods to be used and how the work will

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    progress;

    familiar with the communication technique to be used and how to raise concerns with thelive line team;

    aware of which team member are to be issuing commands and the authority of the SafetyObserver to stop the work; and

    qualified as an Instructed Person and sign on the Live Line Permit to Work.

    2.8.10 Suspension of work

    If it becomes necessary to suspend work then the Service Provider must leave the circuit in a safe

    condition and Transend is to be informed. Transend is to be consulted before work re-commences.

    2.8.11 Identification of Hazards

    The Service Provider is to produce procedures that ensure prior to work starting:

    the circuit has been correctly identified;

    all hazards have been identified; and

    any line to be worked on conforms with the expected type of construction and has the clearances

    expected for which the Work Procedures was planned and assessed.

    2.8.12 Insulating Barriers

    Insulating barriers are designed to protect workers in case of accidental contact, not to enable

    minimum safe approach distances to be reduced. Insulating barriers shall be fitted in the immediate

    work area to prevent inadvertent phase to phase or phase to earth contact as required by the Service

    Providers work procedures. They should not be used to provide insulation between components

    and shall not be deliberately touched without the use of a live line stick or a rated insulated glove.

    Insulating barriers should normally be applied from below the conductors and the order of fittingshould cover the nearest or lowest energised component first. The order in which they are removed

    would normally be the reverse order in which they are fitted. However, each site may have unique

    requirements and barriers should be used with care to reduce the total risk to line workers.

    2.8.13 Use of Ladders

    All ladders are to be approved for live line work and secured by rigging or live line sticks to

    prevent inadvertent movement.

    2.8.14 Other work on the Site or Circuit

    Live line work shall not be carried out while any other work on the site or circuit has the potential

    to compromise the safety of the work team.

    2.8.15 Integrity of Mechanical Properties

    Prior to live line work starting, the Service Provider is to ensure that any structure or conductor to

    be used or climbed and all adjacent structures are mechanically suitable and in a condition to

    support the load. Physical clearances between phases and between phase and earth, including mid

    span clearances, are to be checked as appropriate, by the Service Provider.

    2.8.16 Integrity of Electrical Properties

    Prior to live line work starting, the Service Provider is to ensure that any non-conducting structures

    where suspected component damage or excessive moisture and pollution conditions exists such that

    leakage currents may be excessive, an electrical leakage current test shall be carried out using

    approved instruments. Where reduced insulating properties are suspected and access to the work is

    via a wooden pole then an earth leakage test should be carried out before climbing.

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    Any insulator or insulator string exhibiting significant signs of distress such as louder than normal

    noise levels or visible signs of intermittent surface discharging shall be approached with care using

    techniques designed to reduce the risk of flashover and subsequent injury. If the circuit potential is

    at 33 kV or above, the insulator shall not be changed or tested using live line techniques

    irrespective of the number of sound disc insulators in the string.

    Where live line work is to be carried out close to porcelain disc insulators, each disc is to beelectrically tested immediately prior to work since a puncture failure may not be visible to the line

    worker. Approved instruments and techniques shall be used to ensure defective insulators are

    detected. The voltage across each disc in the string is to be recorded if a line voltage meter is used.

    2.8.17 Insulator Washing

    Prior to live line insulator washing work, the Service Provider is to develop a specific live line

    Work Procedure for Insulator Washing in accordance with ENA / ESAA guidelines and

    ANSI/IEEE 957, Guide for Cleaning of Insulators. The procedures are to ensure that auto-reclose

    facilities are disabled and tagged out of service for the duration of the work.

    2.9 PROCEDURES IN THE EVENT OF AN INCIDENT

    An incident is:

    an electric shock or other injury to any person;

    a flashover at or close to the work site for any reason;

    complete or partial breakdown of any tool or equipment regardless of if a flashover hasoccurred;

    the electrical or mechanical failure of any tool which had the potential to cause an accident;

    the failure or malfunction of any component of a helicopter which did, or could have thepotential to cause an accident; or

    any action or near-miss event which could have the potential to cause an accident.

    The Service Provider is to ensure that documented procedures are in place to respond to the above

    incidents covering:

    rescue;

    first aid and safety of other persons at the site;

    emergency switching requirements;

    restoration of circuits;

    investigation and reporting requirements; and

    notification to all required parties.

    2.10 GUIDELINES FOR WORK PROCEDURES

    The prime purpose of the Service Providers work procedure is to ensure that risks are identified

    and assessed, and will be effectively communicated and managed, to ensure the safety of the work

    party.

    Work Procedures should normally include:

    (a) The name of the Service Provider;

    (b) The objectives of the Work Procedure;

    (c) A unique document identification number, amendment number and date of issue;

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    (d) Name and title of the person who has approved the document on behalf of the ServiceProvider;

    (e) List of the minimum resources required including:

    tools, clearly stating the maximum loading conditions if applicable; equipment including ladders, safety barriers, notices;

    parts or spares or disposable items; and

    line workers qualifications, numbers and personal protective equipment.

    (f) Checklist of actions to be completed prior to live line work starting to ensure hazards areidentified, the risk due to each hazard is assessed, control measures determined and

    implemented. Site specific hazards may include the condition of towers or disc insulators,

    traffic or live stick management, mid-span clearances, weather forecast, terrain stability,

    public safety etc;

    (g) Transends requirements for accessing the network;

    (h) Guidelines on the content of Work Site briefings;

    (i) Minimum electrical clearance to be observed and how this is to be achieved;

    (j) Breakdown of work and how it is to progress indicating any milestones. The logical flow ofthe work should be transparent while designed to minimise the overall risk by reducing the

    duration of exposure and the number of changes between different types of live line work

    methods or movements from one phase to another. Live line work would normally be

    conducted on one phase at a time;

    (k) Identification of the risks associated with carrying out this specific procedure and how eachrisk is being managed, eg. communications, Safety Observer, barriers, inspections etc;

    (l) Analysis of the residual likelihood (including frequency or duration) and the consequencesof each identified risk;

    (m) Identification of recovery or contingency measures that are to be in place;

    (n) Consideration of how performance is to be monitored and reviewed.

    Four types of live line methods have been identified and guidelines have been produced by ENA /

    ESAA. They are Line Stick, Glove and Barrier, Bare Hand and Helicopters for Live Line Work.

    Service Providers may develop procedures that use more than one method if the guidelines for each

    are observed. However, extreme caution is required since the work methods are distinctly different

    and unsafe work practices could result if care is not exercised.

    3 COMPLIANCE AND PERFORMANCE AUDIT

    Transend will comply with the ENA / ESAA guidelines on live line working. Transend will inspect

    the performance of live line field work for compliance with this standard at least once in any 12

    month period. Transend will monitor and review this Live Line Working Standard in line with

    performance audit results and best practice.

    Transend shall conduct sufficient audits of the Service Providers records to ensure administrative

    compliance with this standard in areas such as live line workers competence and the purchasing

    and testing of live line tools and equipment.

    The Service Provider shall monitor the performance and assess the competence of the live line

    worker by conducting field inspections at least once in any 12 month period. The field inspections

    are to be conducted by a person experienced in live line techniques and who is independent of the

    work party.

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    4 RESPONSIBILITIES

    4.1 MAINTENANCE OF STANDARD

    The Transend Manager Environment and Safety is responsible for the review and maintenance of

    this standard.

    4.2 IMPLEMENTATION

    The Transend Manager Environment and Safety is responsible for the implementation of this

    standard.

    5 LIVE LINE PERMIT TO WORK

    All live line work shall be performed under a Live Line Permit to Work.

    5.1 GENERAL REQUIREMENTS BEFORE ISSUE

    Before a Live Line Permit to Work can be issued the following conditions must be met:

    (a) The circuit to be worked on has been correctly identified.

    (b) All auto-reclose facilities for the circuit have been taken out of service and tagged.

    (c) The circuit has been rendered in a suitable condition and it is safe for the live line procedureto be performed.

    (d) The energised condition or isolation shall not be varied for the duration of the Live Linework.

    (e) The Work Site has been prepared so that the work party is able to safely perform the live linework procedures. Where it is not practical to use physical barrier markers, an approved

    alternative method shall be used to delineate the boundaries between items at differing

    potential including earth.

    (f) The Issuing Officer is able to issue the Live Line Permit to Work at the work site. Where it isnot practical to do so, such as for some helicopter work, the Issuing Officer may determine a

    suitable alternative location to issue the Live Line Permit to Work. The Issuing Officer is to

    describe all general information, site / equipment details, preparations and danger points as

    recorded on the Live Line Permit to Work to the Person in Charge and, if possible, to the live

    line work party.

    The Person in Charge must be certified for live line work and have current Transend Live

    Line authorisation to receive an Permit to Work.

    5.2 LIVE LINE PERMIT TO WORK ISSUE PROCEDURE

    Refer to Live Line Permit to Work issue flow-chart in Figure 1.

    (a) After having confirmed that the general requirements have been met, the Issuing Officercompletes the details of the Live Line Permit to Work.

    (b) Should any danger points exist at the work site they must be described on the Live LinePermit to Work. For example:

    Circuit LIVE and in service

    Overhead conductors LIVE and in service

    Earth wire overhead

    (c) A Safety Observer must be appointed unless the Permit to Work is for routine helicopteroperations. The Person in Charge must ensure that the Safety Observer is appointed

    exclusively for the nominated work activity. The Safety Observer shall sign on the LiveLine Permit to Work.

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    (d) The Issuing Officer and the Person in Charge must agree on the conditions of the Live LinePermit to Work. The Person in Charge must inform the Issuing Officer of the live line work

    procedures and any special tools, vehicles or plant that are intended to be used, which may

    have a bearing on the preparation of the Work Site.

    (e) After the Person in Charge agrees to the conditions of the Live Line Permit to Work then theIssuing Officer shall formally indicate all relevant preparations, any isolation and earthing

    points and danger points to the Person in Charge and, where possible, the Work Party. This

    shall be carried out at the work site unless it is impractical to do so for some types of

    helicopter work where the Issuing Officer has determined a suitable alternative location.

    (f) The Live Line Permit to Work is to be issued when the Issuing Officer has witnessed thesigning by the Person in Charge. The Issuing Officer is to make a log entry to record the

    issue of the Permit to Work.

    (g) On acceptance of the Live Line Permit to Work, the Person in Charge assumes control of theWork Site and must execute the responsibilities of the Person in Charge as defined in the

    Power System Safety Rules.

    (h) The Person in Charge formally indicates any relevant preparations, isolation and earthingpoints where applicable and danger points to the work party and the instructed persons are

    then required to sign on to the Live Line Permit to Work.

    (i) On completion of the work described on the Live Line Permit to Work, the instructed personmust sign off, noting the time and date. The Safety Observer then the Person in Charge shall

    sign off once all tools, equipment and any additional safety measures have been removed.

    (j) The Live Line Permit to Work is null and void when it is cancelled by the Issuing Officer.The Issuing Officer shall make a log entry to record the cancellation of the Live Line Permit

    to Work.

    (k) If it is deemed necessary a Live Line Permit to Work may be suspended and resumed byfollowing the principles of PSSR and using a supplementary signature sheet.

    All Live Line Permits to Work, supplementary signature sheets and all associated switching sheets

    shall be filed for auditing purposes.

    6 LIVE LINE ISSUING OFFICER AUTHORISATION

    All Live Line Issuing Officers shall be authorised by the Transend Environment and Safety

    Manager in order to Issue a Live Line Permit to Work on Transend assets.

    6.1 LIVE LINE ISSUING OFFICER AUTHORISATION PROCESS

    Suitable qualified and competent persons shall be nominated by their line manager for Transend

    Live Line Issuing Officer Authorisation using the Transend Live Line Issuing Officer Nomination

    form (see Attachment A at the end of this standard).

    Subject to verification of the nominated persons qualifications in compliance with the Live Line

    Issuing Officer Training Standard, arrangements will be made by Transend to conduct a Live Line

    Issuing Officer training and assessment session.

    Following attendance at the training and assessment session, Transends Live Line Issuing Officer

    authorisation will be issued by the Transend Environment and Safety Manager which shall be valid

    for a period of two years. The training and assessment session shall comply with the Transend Live

    Line Issuing Officer Training Standard.

    6.2 CANCELLATION OF LIVE LINE ISSUING OFFICER AUTHORISATION

    The Transend Live Line Issuing Officer Authorisation may be cancelled for justifiable andidentifiable reasons under the direction of Transends Environment and Safety Manager.

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    6.3 REGAINING LIVE LINE ISSUING OFFICER AUTHORISATION

    When the Transend Live Line Issuing Officer Authorisation has been cancelled for justifiable and

    identifiable reasons, additional training and assessment, as prescribed by the Transend

    Environment and Safety Manager, shall be undertaken to regain the Transend Live Line Issuing

    Officer Authorisation.

    6.4 RENEWAL OF LIVE LINE ISSUING OFFICER AUTHORISATION

    Transends Live Line Issuing Officer Authorisation renewal will be granted following attendance at

    Live Line Issuing Officer Authorisation refresher training.

    The refresher training will be held every two (2) years to renew the Live Line Issuing Officer

    Authorisation.

    Prerequisites for the renewal of the Transend Live Line Issuing Officer Authorisation are:

    Maintenance of Live Line qualifications and competence;

    Active use of the Live Line Issuing Officer Authorisation during the previous two (2) years.

    .

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    Live Line Permit to Workis required

    Apparatus rendered safefor live line work eg.Auto-reclose facility

    disabled and tagged.

    Discussion between IO,PIC and Instructed

    Persons.

    Safety Observerappointed

    Include danger points onPermit to Work relevant

    to work area.

    IO Issues Live LinePermit to Work to PIC

    PIC formally indicatesPermit to Work details

    to work party

    Instructed Personssign on Live LinePermit to Work

    IO formally indicateswork boundaries anddanger points to PIC

    PIC agrees withconditions

    NO

    YES

    FIGURE 1 - LIVE LINE ACCESS AUTHORITY

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    Live Line WorkTNM-GS-809-0286Issue 1.0, February 2008

    Page 26 of 29 Transend Networks Pty Ltd

    UNCONTROLLED WHEN PRINTED

    Attachment A Transend Live Line Issuing Officer Authorisation Nomination Form

    IManager

    as the Manager ofApplicants Name

    who holds Tasmanian Electricity Supply Industry Passport Number:

    NominateApplicants Name

    for Transend Live Line Issuing Officer Authorisation.

    I confirm their Qualifications and Competence as a Live Line Worker

    Managers Name: _______________________________ Signature: ___________________________________

    Company Name: ______________________________________________________________________________

    Address: _____________________________________________________________________________________

    Applicants Acknowledgment

    As a person, endorsed for the work activity within the designated work environment, I acknowledge that I am

    prepared to fulfil the responsibilities of the role as a Transend Live Line Issuing Officer.

    I also understand that any violation of the Transends Live Line work Standard (TNM-GS-809-0286) and the Power

    System Safety Rules will be subject to the Power System Safety Non-Compliance procedure and relevant Code of

    Discipline.

    In addition, I acknowledge provisions of the Workplace Health and Safety Act 1995 as set out but not limited to the

    following:

    That I take reasonable care of my own health and safety, and the health and safety of other persons who may beaffected by my acts or omissions at the workplace.

    That I comply with any direction given to me.

    That an employee may refuse to work if they believe there is a risk of serious or imminent injury, and it is notwithin their ability to rectify the cause of risk, so long as he or she immediately notifies the person in charge of

    work, and that he or she may be given reasonable alternative work until the cause of risk has been rectified.

    Any employees who refuse to work under such circumstances shall not be discriminated against.

    That it is an offence under the Act to be in such a state (by the consumption of alcohol or drugs) to endanger

    others or myself in the workplace.

    I acknowledge that as an Issuing Officer it is my responsibility to retain current authorisation for work

    under the Power System Safety Rules by completing the appropriate refresher training and assessment as

    required to retain authorisation.

    I acknowledge that following a non-compliance, my Transend Live Line Issuing Officer Authorisation may be

    cancelled under the direction of Transends Environment and Safety Manager and my passport flagged.

    Applicant Name: _____________________________ _ Phone No. _______________________

    Applicant Signature: ________________________ _____ Date: . / . / .

    LIVE LINE ISSUING OFFICER AUTHORISATION

    Nomination Form

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    Live Line Work

    TNM-GS-809-0286Issue 1.0, February 2008

    Page 27 of 29 Transend Networks Pty Ltd

    UNCONTROLLED WHEN PRINTED

    SITE/EQUIPMENT

    DANGER

    RECEIPT

    ISSUE

    PREPARATION

    Transend Networks Pty Ltd ABN 57 082 586 892 N o .

    Live Line (printed unique No.)

    Location:___________________________________ Other Parties Involved:______________________

    Reference Documents:________________________ Liaison Contact: ___________________________

    Tasks to be Performed:__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

    ____________________________________________________________________________________________________________________________________________________________________________

    PERSON-IN-CHARGE________________requires a Live Line Permit to Work on the following worksite / apparatus:______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

    The following preparations to the circuit have been completed:

    ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Special requirements:________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

    The Operations listed on the Schedule of Planned Operations/Switching Sheet No._______/__________

    have been carried out to create a definedworking area. The associated DANGER POINTS are:__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

    Preparation of the apparatus is understood and theDANGER POINTS HAVE BEEN NOTED by the Person in Charge

    Print Sign No. Time Date

    Issuing Officer

    Print Sign Number Time DatePerson in Charge

    GENERAL

    TRANSEND NETWORKS

    LIVE LINE PERMIT TO WORK

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    Live Line StandardTNM-GS-809-0286-001Issue 1.0, May 2006

    Page 28 of 29 Transend Networks Pty Ltd

    UNCONTROLLED WHEN PRINTED

    INSTRUCTE

    D

    PERSONS

    SUURENDER

    CAN

    CEL

    CHANGEOFSOO

    R

    PIC

    Safety Observer

    Note: the Issuing Officer, the Work Party and other Work Partiesare to be informed before any transfer of Person in Charge.

    Person in Charge Number Sign on Sign off Time Date

    Safety Observer Number Sign on Sign off Time Date

    I understand the DANGER POINTSand limits of the work area relating

    to the LIVE LINE PERMIT TO WORK

    My work is completed and henceforthI will regard the work area asUNSAFE TO APPROACH

    Print Name Sign On Time Date Sign Off Time Date

    1

    2

    3

    4

    56

    7

    8

    9

    10

    1. All tools, gear, work earths and additional safety measures have been removed from the apparatus and work site.2. All personnel have signed off the Live Line Permit to Work including all Supplementary Signature sheets.3. All personnel now regard the apparatus as UNSAFE TO APPROACH.

    The apparatus IS / IS NOT available for service (strike out which is not applicable):

    Remarks_____________________________________________________________________________________________________________________________________________________________________

    Print Sign Number Time DateSafety Observer

    Person in Charge

    This Live Line Permit to Work is hereby cancelled.

    Print Sign Number Time DateIssuingOfficer

    LIVE LINE PERMIT TO WORK

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    Live Line Standard

    TNM-GS-809-0286-001Issue 1.0, May 2006

    Notes