rise to power april 08

Microsoft PowerPoint - Rise to Power April 08.pptDelivering Utility Solutions
Delivering Utility Solutions
This event is hosted jointly between Balfour Beatty Utility Solutions and CE
Electric UK
Neil Hope Collins Health & Safety Executive (HSE)
Richard Steele International Powered Access Federation (IPAF)
Mel Swift & Simon Neve Balfour Beatty Utility Solutions (BBUS)
• Chaperones • Marshall's • Emergency Co-ordination • Emergency 1st Aid • Fire Evacuation
– Muster Points • Public Access • Smoking
Field Operations Directorate
• Raising awareness of elevated work risk
• Current and future capabilities
We make no compromise when it comes to safety…
• CE Electric UK is committed to providing a safe and rewarding work environment – putting safety first is a core value of our company
• CE Electric UK proactively works with Regulators to promote Health and Safety and takes an open book approach towards sharing safety best practice
• CE Electric UK conducts its work and operations in compliance with applicable laws and regulations
• CE Electric UK is alert to the need for effective management of working at height within our key operations
• CE Electric UK expects and demands a ‘by-the-book’ approach to elevated work from its delivery teams
Elevated work risk – don’t try this at home...
• Construction industry history and folklore has not been helpful to the image and reputation of safe aerial work …
• Lionization and feting of ‘gravity-defying’ acts …
– The skyscraper lunch break photo – Fred Dibnah the risk-accepting steeplejack
• Aerial exhilaration in the leisure and sport sector…
– Bungee jumping – Parachute jumping – The latest Ladbrokes advert for thrill
satisfaction
Elevated work risk – everybody knows you don’t pet the shark...
• The psychology of aerial workers is key – can you ever be totally comfortable with work at height?
• Behaviour based safety – a science which promotes behaviour modification – soon, certain, positive consequences are the enemy of safe aerial work behaviours
• Self-control of error producing conditions is vital – rushing, frustration, fatigue and distraction are the modes which increase our exposure to error
• 9.81ms2 - none of us are immune from gravity – it bites every time – no second chances !
Elevated work risk – bitter experience points to abnormal conditions having a dramatic outcome...
• The road traffic event – proximity to rogue driving presents a challenge to protection of the support structure …
• The metabolic event – motor competences can fail unexpectedly and need a fall back rescue plan …
• Failures in structural integrity – Shallow embedment, below ground pole rot, platform hydraulics …
• Infringing the safe work distance – overshooting the approach to the work zone …
• Uncontrolled release of tension – mishandling of mechanical forces …
Elevated work risk – the hierarchy of needs …
Safe execution of elevated work needs … • A safe system of work (which precludes selection of the wrong approach) …
AND • All ‘immediate danger to life and health’ hazards properly identified,
controlled and mitigated through effective risk assessment … AND • Operative behaviour consistent with error avoidance
Anything less is fundamentally unacceptable
Neil Hope-Collins - HSE
Legal Context HM Inspector of Health and Safety
Neil Hope-Collins
• The legal framework • What this means in theory and practice
Legal Provisions are for all work at
height
• Health and Safety at Work Act 1974 • Management of Health and Safety at Work
Regulations 1999 • Work at Height Regulations 2005
The work
Plan the work
Risk assess the method of access in line with the hierarchy described in the regulations.
• MEWPs come above personal fall protection systems
• Schedules in the regulations have prescriptive requirements for rope access and work positioning.
Schedule 5 - Personal Fall Protection Systems (PFPS)
- Part 1: Requirements for all PFPS
- Part 2: Work Positioning Systems
- Part 3 Rope Access and Positioning
- Part 4 Fall Arrest Systems - Part 5 Work Restraint
Part 3 – Rope access and positioning
Two separately anchored lines Harness connected to both Self locking ascender/
descender Safety line has mobile fall
protection system
The equipment
• Provision and Use of Work Equipment Regulations 1998 (regs. 5 & 6)
• Lifting operations and Lifting Equipment Regulations 1998 (reg. 9)
Identification of equipment with traceability Visual inspections when used Thorough examination at suitable intervals (6 months)
Access Hierarchy 1
Mobile Elevated Work Platform (MEWP) and approved body harness attached inside bucket by lanyard.
Approved scaffolding or fixed platform and approved harness.
Access Hierarchy 1
Hierarchy 1
Access Hierarchy 1
Restraint lanyard
How will the operator get into the cage?
On a frosty morning?
A more common sight.
Hierarchy 2
Ladders with approved harness and fall arrest. They should be footed and top-tied where reasonable.
Hierarchy 2
Hierarchy 2
Hierarchy 3
Hierarchy 3
Climbing irons, approved harness and rope grab device.
Rescue equipment for pole top and self- rescue from MEWP bucket
Difficulties with implementation in the field
• Risk Assessment • Use of Hierarchy • Use of MEWPs • Short duration work • Use of attachments • Ladders • Contractors
Effective planning of the work Assessment of which access method to use Maintenance and Inspection of equipment Two points of attachment at point of work
Linesman, climbing, fell from near top of pole.
Using hierarchy: MEWP with traffic control
Richard Steele - IPAF
INTRODUCTION
•WHAT ARE MEWPS AND WHAT IS THEIR PURPOSE? •RECENT CATEGORY CHANGES - WHY AND HOW THIS AFFECTS US •A BRIEF HISTORY – HOW DID WE GET HERE? •OUR GROWTH AND CONTRIBUTION •WHY IPAF?
THE IPAF FLEET of MEWPs & MCWPs
GROUP A: MEWPs where the vertical projection of the centre of area of the platform at the maximum chassis inclination specified by the manufacturer is always inside the tipping lines.
prENprEN 280 (revision) [July 2006] 280 (revision) [July 2006] ClassificationsClassifications
GROUP B: All other MEWPs.
TYPE 1: Travelling is only allowed with the MEWP in its transport position.
TYPE 2: Travelling with raised work platform is controlled from a point of control at the chassis.
TYPE 3: Travelling with raised work platform is controlled from a point of control at the work platform.
Mobile Vertical (3a)
CATEGORY IPAF REF. OLD IPAF CATEGORIES
• Static Vertical: (1a) VPP (static) • Static Boom: (1b) SPB (Outriggers), TP, VMP.
• Mobile Vertical: (3a) SL, VPP(mobile) • Mobile Boom: (3b) SPB
• Mast Climbing Work Platforms (MC) • Insulated Aerial Devices (IAD) • SPECIAL: (2a), (2b) and any other
HISTORY
IWPA = International Work Platform Association.
IFHPM + IWPA = IFHPM + IWPA = IPAF founded in 1983.
MEMBERSHIP
CODE OF CONDUCT
Legislation Health & Safety The Law Relating to MEWPS Insurance Training Advice Accident Procedures Publications & General Information
HELP GET ONE ON EVERY BOOM IN THE COUNTRY
COMMITTEES
• Mast Climbing Committee
• ADEQUATELY TRAINED OPERATORS • ADEQUATELY TRAINED DEMONSTRATORS • ADEQUATELY TRAINED TRAINERS • ADEQUATELY TRAINED MANAGERS • ADEQUATELY TRAINED INSPECTORS • ADEQUATELY TRAINED HARNESS USERS
LEGAL REQUIREMENT FOR TRAINING
Council Directive 89/655/EEC + 95/63/EEC article 7 states: “Without prejudice to article 12 of Directive 89/391/EEC, the employer shall take measures necessary to ensure that:
- workers given the task of using work equipment receive adequate training, including training on any risks which such use may entail;
- workers referred to in the second indent of Article 5 receive adequate specific training”.
GROWTH
IPAF Training Worldwide
TCs - inc Sats.
Belgium 2 6
Chile 1 1
Eire 3 3
Finland 2 3
France 1 1
Germany 21 33
Italy 10 10
Luxembourg 1 1
Netherlands 6 12
reason!
Photos Welcomed & please check you details.Photos Welcomed & please check you details.
Why IPAF training?
• Increasing worldwide RECOGNITION.
• Operator, DEMONSTRATOR , Instructor.
• NO ANNUAL T/C FEES, only membership fee.
• NOT FOR PROFIT company.
• Unsurpassed level of SERVICE.
Mel Swift & Simon Neve – Balfour Beatty Utility Solutions
Network Solutions
Electricity Alliance Power Solutions
UK Distribution Networks
• Typical wood pole construction for voltages ranging low voltage up to and including 132kV.
• Sited by roads, across farmland and even at times on mountain slopes.
• During the 1950’s as part of the rural electrification program, considerable network was constructed. Since then it has continued to grow.
• With large sections of network built in the 1950’s, the challenge is refurbishment / replacement of the asset, to improve network capability and to meet future demands.
• Legislation – Construction (Health, Safety and Welfare) Regulations 1996 now
Construction (Design and Management) Regulations 2007 – Work at Height Regulations 2005
• HSE and Other Guidance Documents • Industry Standards and Codes of Practice • DNO and Grid Operating Procedures / Instructions • Company Policies / Procedures • People
• Which have the most influence?
Work at Height Regulations (2005)
• As we have already heard, the Work at Height Regulations 2005 place specific responsibilities on us all.
• The latest guide is an essential read for all those engaged with working at height.
• This guide in tandem with the documents previously mentioned should determine the way we work at height. However, our workforce, in particular the more experienced guys, may have a different view.
• ????
• Is there room for improvement?
• We at Balfour Beatty Utility Solutions believe the answer to that question is an emphatic YES
Pole Top Working
• Here we see the traditional approach to overhead line working.
• Linesmen permanently attached with fall arrest devices in situ.
Pole Top Working
• Again another traditional approach working from a hanging ladder.
• As before the Linesmen are permanently attached with fall arrest device.
Ladders from the Ground
• Wood, fibreglass and aluminium ladders are used within the Electricity Supply Industry.
• Recent adaptations to ladders include:- – Automatic self-levelling “Level-
Eze” system – Updated pole hoops – Better anchoring facilities
• Both tubular and tower scaffolds are used
• Here we see a tower scaffold facilitating access to a substation structure.
• Other situations where scaffolding may be used include terminal poles with pole boxes.
Historic
• For those who regard MEWPs as a relatively new concept for working at height, circa 1920’s those responsible for the tram networks had already cracked this nut.
• But I am not sure that these come up to today specs !
Roadside MEWP Use
replacement • LV mains installation
• HV installation replacement, refurbishment, repair and maintenance
• Tree trimming
• HV and EHV installation replacement, refurbishment, repair and maintenance
• Tree trimming
The Future for Distribution
• Although as an industry we have come along way with the use and deployment of the range of access equipment solutions, there is still away to go.
• Since the introduction of the Work at Regulations in 2005 there has been a migration towards the use of MEWP’s, but still there is reluctance to their use by some.
• Notwithstanding the above, there remains a requirement to keep up to date with what is out there and in part, this event is about achieving this.
Distribution the Future
UK Transmission Grid
• There are over 80 000 towers in the UK with 22 000 being owned and maintained by National Grid. These are double circuit with one centrally mounted earth wire
• The lines are refurbished every 30/40 years, where all the conductors, insulators, fittings and earth wire are replaced on both circuits
• The conductors are changed in lengths of approximately 4km’s, about 12 towers apart
• Platform access is required at both ends and an average of two intermediate towers in the section (11 spans )
Continuous Stringing Operation
• Old conductor is used as the pulling bond for the new
• Connection is at tension towers as that’s where the conductor is jointed
• Old conductor is winched in at one end whilst new conductor is fed in at the other end
• Running blocks are to be installed at each tower
• A working platform enables the workforce access to the conductors
• The working platform is suspended from the cross arm
• The platform is tied down at each end to a ground anchor to stop the platform tilting when operatives are stood at one end
• Earths are applied to the conductors
• The conductor jumpers can be cut/removed
• Conductor clamps can be positioned onto the conductor outboard of the insulators
Landing the running block
• The running block is raised complete with the new conductor tails
• The tails are connected to the existing conductor
• The winch is operated to take the tension of the conductor so that the clamps can be removed
Statistics
• On average a linesman will climb the tower to work from the platform 5 times in a normal working day
• On average there will be 3 linesmen working in the platform at any one time
• On average a linesman will stay in the platform working for 1 hrs
• It takes approximately 3 hours to rig up and land the platform ready for work and then to move the platform from one arm to the next 2 hours
• Linesmen climb the tower and set-up the winch
• First lineman sits on the top conductors whilst the trolley is raised
• Once the trolley is landed onto the top conductors the linesman assists in the landing of the trolleys on the bottom and lower conductors
In Europe
• Danish legislation states – Workers can climb structures only for one off inspections – All other work must be carried out using baskets/platforms
• Danish OHL towers are predominantly – Up to 70m high – Double circuit – 220/400kV – Have two earthwires
• NG have only 52 towers out of 22000 higher than 75m
• No climbing required
• No climbing required • Faster access to the point of work
Advantages of “The Danish Way”
• No climbing required • Faster access to the point of work • Less equipment/platforms to raise
and lower
and lower • Less earthing required and easier
to apply
and lower • Less earthing required and easier
to apply • Can position the basket and the
tools exactly where required • Has a Skyhook available
• Less reliant on working with others – winches etc
• Less muscular skeletal issues • 110V, hydraulic, air supply at the
point of work • No Rapid Rail/Latchway required • Can be used to lift spacer trolleys • All tools can be tethered to the
basket
Disadvantages of “The Danish Way”
• Need matting to all towers • Large capital investment • Can it reach the earth peak? • Can we use them safely?
Summary
• Although as an industry we have come along way with the use and deployment of the range of access equipment solutions, there is still away to go.
• Notwithstanding the above, there remains a requirement to keep up to date with what is out there and to that end, welcome to our event and enjoy the experience.
• Vertikal website – Presentations – Discussion forum
• Presentation slides available upon request