gearing up for the revised nfpa 70e electrical...

Florida AIHA Spring Conference April 4, 2013 Gearing Up for the Revised NFPA 70E Arc Flash/Electrical Safety Requirements of 46

1

Paul A. Zoubek, CSP, CIH Zoubek Consulting, LLC April 4, 2013 [email protected] 619-677-8682

Gearing up for the Revised NFPA 70E Electrical Safety Requirements

Schedule

2

• Management/Work Practice Considerations

• Personnel Protection • PPE/Risk Assessment • Boundaries • Equipment Labeling

• Electrical Safety Program • General • Work Permit System • Training • Contract/Host Employer

Relationship

mailto:[email protected]


• How this Course will be presented: • Bullets in bold represent

references to the 2012 NFPA 70E standard

• Bullets in italics represent changes in effect in 2012

Course Presentation

3

NFPA Wheel

4

NFPA 70 (National Electrical

Code)

NFPA 70B (Equipment Maintenance

Requirements)

NFPA 70E (Electrical

Safety Work Practices)


5

Day 2-Management/Work Practices

Engineering Solutions: • Guards • Barriers • Design Features Administrative Solutions: • Employee Training • Standard Operating Procedures

Personal Protective Equipment: • AR Clothing • Hard Hat • Safety Glasses Remember – PPE is a last line of defense!

Management/Work Practices

• Qualified Person: One who has the skills & knowledge related to the construction and operation of the electrical equipment & installations and has received safety training on the hazards involved.

• Trained to recognize electrical hazards and safeguard himself and surrounding environment during energized electrical work

6 Lecture/Discussion


• Justification for energized work (NFPA 70E, Chapter 1, Article 130.2(A), page 70E-22)

• Greater Hazard • Increased or additional

hazards include interruption of life support equipment, deactivation of emergency alarms, shutdown of hazardous location ventilation systems, or removal of illumination for an area.



De-activation of emergency alarms is justification for

energized work.


• Justification for energized work:

• Infeasibility • Employer can demonstrate

the de-energizing is infeasible due to equipment design or operational limitations.


Infeasibility may justify energized work. However if it is inconvenient to de-energize, energized work is not

justifiable.



• Justification for energized work: • Verification during

LOTO • Less than 50 Volts: Not

required to be de-energized (NFPA 70E, Article 130.2(A)(3), page 22)


• Includes: – PPE – Arc & Shock Boundaries – Equipment Labeling – Electrical Safety Program

– Work Permit System – Training Requirements – Misc Work Practices

Personnel Protection



• NFPA 70E, Article 130.7, page 70E-28 to 41

• Gloves • Head Protection • Eye & Face Protection • Foot Protection • Apparel

Personnel Protection-PPE


Personnel Protection-PPE (Gloves)

Voltage Rated Gloves have a classification according to the

voltage range they can be used


http://www.aplussafety.net/products/store.cfm?d=3053&c=4548&p=16176&do=detail


Class

Protection VDC

Protection VAC

00

Up to 750

Up to 500

0

Up to 1500

Up to 1000

1

Up to 11,250

Up to 7500

2

Up to 25,500

Up to 17,000

3

Up to 39,750

Up to 26,500

4

Up to 54,000

Up to 36,000



• Care and Use – Equipment shall be inspected

before each use. – An air test shall be performed

along with the inspection. • Equipment shall not be used if:

– There is a hole, tear, or cut – Embedded foreign object – Texture changes

• Storage: – Light – Ozone – Temperature extremes – Excessive humidity


Air test must be performed prior to donning voltage rated gloves.



15


Chemical Attack: Swelling caused by oils & petroleum compounds

Contamination: Discard protectors contaminated by oils & petroleum compounds

Lecture/Discussion


Snags: Damage shown is due to wood or metal splinters or other sharp objects.

Folding Gloves: Strain on rubber at folded point is equal to stretching to glove to twice it’s length.




Rubber insulating equipment must be tested by an outside laboratory to ensure proper insulating protection. Frequencies depend on the equipment.

Type of Equipment When to Test Rubber Insulating Gloves* Before issue & every 6 months

Rubber Insulating Blankets Before issue & every 12 months

Rubber Insulating Sleeves Before issue & every 12 months

*ASTM requires every glove must be electrically tested before it is shipped. Some manufacturers automatically stamp the month and year of the test. Some stamp them for an small add on charge. Gloves can sit on the shelf for up to 1 year before hey need to be retested. They would need to be electrically tested 6 months from issue date.


• Protector Gloves. • Provide protection against

punctures, snags and abrasions

• Shall be worn over insulating gloves.

• Shall be worn where required for flash protection.

• NFPA 70E, Article 130.7(C)(10)(d)(1)-(2), Page 30


Protector gloves are worn over voltage rated gloves for flash protection & protect the v-rated gloves against punctures & snags




• Heady duty leather gloves are made entirely of leather which a minimum thickness of 0.03”, are unlined or lined with non-flammable, non-melting fabrics.

• ATPV >10 cal/cm2



Exercise 1 Class 00 gloves will provide protection up to: a. 800 VDC b. 500 VAC c. 1000 VAC d. 5400 VAC

20 Individual Exercise


Personnel Protection-PPE (Head Protection)

Old Class New Class (after 1997)

Class A Class G

Class B Class E

Class C Class C

Description

General service, limited voltage

protection.

Utility Service, high voltage protection

General Service, metallic, no voltage

protection

Insulation Protection

2200 V

20,000 V

NONE

Impact Resistance

850 lbs Ave.

1000 lbs max

850 lbs Ave. 1000 lbs max

850 lbs Ave. 1000 lbs max

Penetration Resistance

3/8” max

3/8” max

7/16” max

Old ANSI Standard New ANSI Standard

Z89.1-1969 Z89.1-1997

Z89.2-1971 Z89.1-1997

Z89.1-1969 Z89.1-1997

21

Lecture/Discussion

Personnel Protection-PPE (Head Protection)

Exercise 2 Which hard hat will protect up to 480 V? a. Class Z b. Class G c. Class C d. Bump Cap

22 Individual Exercise


Personnel Protection-PPE (Eye/Face Protection)

• Basic Rules for Eye & Face Protection – Made of appropriate material – Face shields shall have an arc

rating suitable for the arc exposure. Face shield without arc ratings shall not be used.

– Safety glasses/goggles shall always be worn under face shields or hood.

Appropriate eye & face protection for HRC=2


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• Arc rated balaclava (head sock) • Shall be used with an arc rated face shield when the

back of the head is within the arc flash boundary • Arc rated hood shall be used when the anticipated

energy exposure exceed 12 cal/cm2

• HRC=2 • Arc rated hood permitted in lieu of head sock • NFPA 70E, Article 130.7(C)(10)(b)-(c)

Lecture/Discussion



HRC=0

Safety Glasses

HRC=1

Arc Face Shield

HRC=2

Arc Face Shield + Sock Hood

HRC=3 or 4

Arc Hood

• Face shields must be worn in combination with safety glasses. • Arc Rating of face shields must correspond to HRC for available

incident energy.


Personnel Protection-PPE (Foot Protection)

• In situations of step & touch potential, dielectric overshoes are required

• EH (Electrical Hazard) shoes meeting ASTM F 2412 can provide secondary source of electrical shock protection under dry conditions

• NFPA 70E, Article 130.7(C)(8), page 70E-29

Foot wear should be in good condition and not have exposed steel caps.


http://www.aplussafety.net/products/store.cfm?d=3053&c=4548&p=16142&do=detail


Personnel Protection-PPE (Foot Protection)

• Heavy duty work shoes shall be used in all tasks greater than 4 cal/cm2

• NFPA 70E, Article 130.7(C)(10)(e), page 70E-30


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Personnel Protection-PPE (Hearing Protection)

• Employees shall wear hearing protection whenever working within the arc flash boundary

• NFPA 70E, Article 130.7(C)(5), Page 28

Lecture/Discussion


Personnel Protection-PPE (Protective Clothing)

• Causes of Arc Flash – An arcing flash is the flow of

current through the air between phase conductors or phase conductors and neutral or ground.

– An arc can release tremendous amounts of concentrated radiant energy at the point of the arcing in a small fraction of a second resulting in extremely high temperatures

There are many potential causes of arc flashes from

electrical equipment.



• An arc occurs when electric current flows between two or more separated energized conducting surfaces

• Arcs are caused by human error including dropped tools, accidental contact with electrical systems, and improper work procedures

• Insulation failure



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• Arc Rated clothing required whenever there is a potential exposure to arc flash >1.2 cal/cm2

• NFPA 70E, Article 130.7(C)(6), page 70E-28 • The arc flash boundary for systems 50 volts and

greater shall be the distance at which the incident energy equals 5 J/cm2 (1.2 cal/cm2)

• NFPA 70E, Article 130.5(A), page 70E-26

Lecture/Discussion


• Arc Rated Clothing: – Clothing made from

fabrics that self extinguish

– Fabrics are a combination of natural and synthetic materials

– Most severe burn injuries and fatalities are caused by non-flame resistant clothing igniting and continuing to burn.

2012 NFPA 70E has replaced the term Flame Resistant with Arc Rated




• Flame retardants are chemicals that inhibit sustained combustion.

• Arc Rated is the characteristic of not supporting combustion in air.

• ARC shall be appropriate to hazard

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Lecture/Discussion

• Always the outermost layer. • Worn correctly; zipped & buttoned. • Outermost layer must meet

requirements for Arc Flash Protection Hazard Risk Category.

• Undergarments must be of natural fiber such as cotton.

• Layering: Garments that are not arc rated shall not be used to increase the arc rating of a garment or clothing system • NFPA 70E, Article 130.7 (C)(9)

(a), page 70E-29 & Annex M




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• There are two ways to determine proper PPE for given task • Standard

Operating Procedures or Arc Flash Labels

• NFPA 70E Tables

Lecture/Discussion

Protective Clothing Categories have minimum Arc Thermal Performance Values. These Arc Thermal Protection Values (ATPV) correspond to the maximum incident energy that the clothing will protect with worker. Protective clothing must meet the minimum ATPV for assigned HRC. HRC 0 - ATPV = 1.2 cal/cm2 HRC 1 - ATPV = 4 cal/cm2 HRC 2 - ATPV = 8 cal/cm2 HRC 3 - ATPV = 25 cal/cm2 HRC 4 - ATPV = 40 cal/cm2




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PPE HRC=2

or 8 cal/cm2

Lecture/Discussion

38


PPE HRC=4

or 40 cal/cm2

Lecture/Discussion


• PPE Selection • AC Systems: NFPA 70E, Table 130.7(C)(15)(a),

page 33-37 • DC Systems: NFPA 70E, Table 130.7(C)(15)(b),

page 38 • Protective Clothing & PPE: NFPA 70E, Table

130.7(C)(16), page 39 • Assigns HRC according to:

• Type of Equipment • Voltage Range (Nominal Voltage) • Task




• Panelboard • NFPA: Electrical equipment

designed to be placed in a cabinet placed in or against a wall accessible only from the front.

• Manufacturer: A front-accessible panel containing overcurrent protection devices for use in controlling lighting, heating, or power circuits.



Risk Hazard Analysis/Explanation of PPE Selection

1. Select equipment AC Systems: DC Systems: 2. Select voltage class (voltage range) 3. Select appropriate task to be performed 4. Select Hazard/Risk Category (0-4) 5. Reference Hazard/Risk Category for PPE assignment 6. Determine if V-Rated Gloves are required 7. Determine if V-Rated Tools are required



Use of NFPA 70E Tables is Task Specific

42


Panelboards 240 V to 600 V (meeting table use criteria)

Hazard/Risk Category

Rubber Insulating

Gloves

Insulated Hand Tools

Work on energized parts (including voltage testing)

2 Y Y

PPE listing in HRC 2 Arc Rated Clothing (8 cal/cm2) Arc Rated Face Shield + Arc Rated Balaclava Hard Hat Safety Glasses Hearing Protection (ear canal inserts) Leather Work Gloves

Lecture/Discussion


43

• Utilizing Tables in NFPA 70E – Need to perform emergency work on equipment without proper arc

flash hazard labels – Contractors when flash hazard analysis has not been performed – When notes in the NFPA tables have been properly corresponded to

field conditions: • Maximum of 25 kA short circuit available; maximum of 0.03 sec

(2 cycle) fault clearing time • Maximum of 65 kA short circuit available; maximum of 0.03 sec



(30 cycle) fault clearing time


Lecture/Discussion

• When performing energized work, voltage rated tools must be used.

• The tools will have maximum voltage rating and be identified as insulated for use on energized parts.

• Qualified persons shall ensure tools are in good condition prior to use.

Personnel Protection-Tools

1000 V 44

Lecture/Discussion


Personnel Protection-Tools

Insulated tools will be rated with maximum voltage rating and double triangle symbol.


46

Hazard/Risk Evaluation Procedure ◦ Electrical safety program shall identify a hazard/risk

evaluation procedure to be used before work is started within the limited approach boundary

◦ NFPA 70E, Article 110.3(F), page 16 ◦ Hazard Risk Evaluation Procedure Perform when work is performed within the limited

approach boundary Use of NFPA 70E Annex F, page 75 Use of ANSI/ASSE Z244.1

Risk Assessment

Lecture/Discussion


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Hazard Risk Evaluation Procedure ◦ Use of ANSI/ASSE Z244.1 Identify all tasks Identify hazards Assess potential consequences Assess potential exposure to hazards

Assess probability of occurrence

Evaluate the risk Achieve an acceptable level of risk

Risk Assessment

Lecture/Discussion

48 The procedure in ANSI Z244.1 addresses four areas

Risk Reduction

Consequences

Identification of hazard

Identification of task

Risk Assessment

Lecture/Discussion


49

Risk Assessment

Identification of Tasks ◦ Infrared Thermograhy ◦ Voltage Testing ◦ Circuit Breaker Operations ◦ Removal Circuit Breakers ◦ Install Circuit Breakers

Lecture/Discussion

50

Risk Assessment

Identification of Hazards ◦ Meter Malfunction ◦ Meter Misapplication ◦ Contact With Energized Parts ◦ Dropped Tool ◦ Insulation Failure

Consequences of Hazard ◦ Shock ◦ Electrocution ◦ Arc Flash Burn ◦ Explosion of Meter

Lecture/Discussion


51

Risk Assessment

Risk Reduction ◦ Ensure meter is properly rated ◦ Ensure proper PPE is implemented ◦ Remember that you are not issuing PPE and

associated equipment. That is done during the arc flash and shock hazard analysis. The purpose of this procedure is to identify methods of hazard reduction.

Lecture/Discussion


Exercise 3 Perform task/risk assessment in your handout. Your task is voltage testing on a 480 V panelboard.

52 One on One Exercise


53

Personnel Protection-Calculating ATPV

Calculating ATPV using NFPA calculation (Low Voltage)

Arc in Open Air (<600 V)-Equation D.6.1 EMA = 5271 x DA

-1.9593 x tA x (0.0016 x F2 - 0.0076 x F + 0.8938)

EMB = 1038.7 x DB-1.4738 x tA x (.0093 x F2 - .3453 x F + 5.9675)

Arc in Cubic Box (<600 V)-Equation D.6.2

Incident Energy (Cal/cm2)

D - >18 inches distance from arc electrodes

t - time of arc exposure in seconds (assumed be equal to arc duration)

F - short circuit current, kA

Lecture/Discussion

54

• Working Distance Variable (D) • Distance between the worker standing in front of the

equipment, and from the front of the equipment to the potential arc source inside the equipment

• Arc-flash protection is always based on the incident energy level on the person's face and body at the working distance, not the incident energy on the hands or arms


Lecture/Discussion


55


Variables determining

incident energy in arc flash

calculations.

Lecture/Discussion

NFPA 70E Annex H provides PPE Requirements for Flash Hazard Analysis

Personnel Protection-Flash Boundaries

56

• Boundaries to consider – Prohibited – Restricted – Limited – Flash protection boundary

• An approach limit at distance from live parts where a person could receive a second degree burn if an electrical arc flash were to occur.

• NFPA 70E, Article 130.5, page 26 • Requires an arc flash hazard analysis. • The distance at which the incident energy equals 5

J/cm2 (1.2 cal/cm2) Lecture/Discussion


57 Video Clip

58 Video Clip



• NFPA 70E, Article 130.5, page 26 • Default Arc Flash Boundaries now listed at the beginning

of each PPE table • AC Systems: NFPA 70E, Table 130.7(C)(15)(a),

page 33-37 • DC Systems: NFPA 70E, Table 130.7(C)(15)(b),

page 38 • Note: Default arc flash boundary for 480 V panelboard

is 30 inches


60


Lecture/Discussion


Personnel Protection-Approach Boundaries

• NFPA 70E, Article 130.4, page 23-26 • Basic Principles

– Increase the distance between person and decrease the potential for accident.

– Unqualified people shall not cross the limited approach boundary unless they are wearing appropriate equipment and are under the supervision of a qualified person.

• Safe approach distance for Qualified Persons • Determine limited approach boundary and, if

boundary is to be cross, appropriate protective equipment is used. 61

Lecture/Discussion


• Safe approach distance for Qualified Persons • For a qualified person to cross the limited approach

boundary, he/she must: • Have a plan that is documented and approved by

management. • Use PPE appropriate for the equipment and

voltage level involved. • Requires shock hazard analysis.



63

Personnel Protection-Approach Boundaries • Approach Boundaries

• AC Systems: Table 130.4(C)(a), page 24-25 • DC Systems: Table 130.4(C)(b), page 25 • Limited Approach Boundary

• Exposed Movable Conductor: – Typically an overhead conductor – Distances greater than for fixed conductor – Worker requires a bucket truck or other means,

such as a movable platform, to work on conductor • Exposed Fixed Circuit Path:

– Exposed fixed circuit path – Distances less than for movable conductor – Example would be an open section of a

panelboard where a worker or object could come into contact with the exposed part

Lecture/Discussion


• Limited approach boundary: Outermost boundary that can be crossed by qualified person.

• Restricted Approach Boundary: Safest distance before qualified worker is required to use shock protection equipment and techniques. Unqualified persons may not cross the boundary under any circumstances.

• Prohibited Approach Boundary: Crossing this boundary is the same as coming into contact with a live part



65


Equipment

Shock boundaries depend on the system voltage level

Qualified or Unqualified Persons (if accompanied by Qualified Person)

Limited Shock Boundary

Qualified Persons Only.

Restricted Shock Boundary

Crossing this boundary is the same as coming into contact with

a live part

Prohibited Shock Boundary

Lecture/Discussion

66

Nominal System Voltage Range (Phase to Phase)

Limited Approach (fixed part)

Restricted Approach

Prohibited Approach

301-750 V 3.5 ft 1 ft 1 inch

Lecture/Discussion


*Consult NFPA 70E Table 130.4(C)(a) for specific requirements


67

Personnel Protection-Equipment Labeling

• NFPA 70E, Article 130.5(C), page 26 • NFPA 70E Article 130.7(E)(1), page 41 • Markings shall be located so as to be clearly visible to

qualified persons before examination, adjustment, servicing or maintenance of electrical equipment.

• Field marked with a label containing incident energy and/or available PPE.

Lecture/Discussion

68


At least one of the following: Available incident energy

and the corresponding working distance

Minimum arc rating of clothing

Required level of PPE Highest Hazard/Risk

Category (HRC) for the equipment

Nominal system voltage Arch Flash Boundary

Arc Flash & Shock Hazard Appropriate PPE Required

Hazard Risk Category

Arc Rating @ 18”

Nominal System Voltage

PPE Approach Boundaries

Prohibited

Restricted

Limited

Flash Boundary

Lecture/Discussion

http://www.seton.com/seton/catalog/browseSpaceCode.do/0/CV8.html

http://www.seton.com/seton/catalog/browseSpaceCode.do/0/CV8.html


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DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. This signal word is to be limited to the most extreme situations. WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. It may also be used to alert against unsafe practices."

Lecture/Discussion

70


Lecture/Discussion


71 NO LONGER ACCEPTABLE Lecture/Discussion





73

Labels show flash boundaries & HRC=0 PPE

Labels show shock

boundaries & shock PPE

Lecture/Discussion


74 Label where no PPE available

Labels shows no PPE available due to high

incident energy

Label shows longer clearing time

Lecture/Discussion



75

• NFPA 70E, Chapter 1, Article 110.3, page 70E-15 • General: An electrical safety program shall be established which

addresses the hazards and appropriate control measures for these hazards. The program should also address the procedures for electrical safety program implementation.

• Electrical Safety Program Principles (Article 110.3(C), page 16) • Methods of evaluation & inspection • Planning & documentation

• Electrical Safety Program Controls (Article 110.3(D), page 16) • Conductors considered energized until proven otherwise • De-energizing a conductor to make it safe to work on is in itself

potentially hazardous • Electrical Safety Program Procedures (Article 110.3(E), page

16) • Hazard/Risk Evaluation Procedures (Article 110.3(F), page 16)

Electrical Safety Program-General

Lecture/Discussion

76

Electrical Safety Program-General

Components (NFPA-The Electrical Safety Program Book) Purpose and Philosophy Scope Responsibilities

Management Employees

Definitions Risk Assessment & Shock/Flash Hazard Analysis

General Risk Assessment Shock/Flash Hazard Analysis

Procedures General Policy

Working on/near energized Circuits General Procedures Written Procedures

Controls Corporate Safety Principles/Responsibilities Training

Training Outline for Qualified Persons Training Outline for Unqualified Persons Training Records

Auditing Employee Competency General Electrical Safety Program Arc Flash Hazard Analysis

Lecture/Discussion


77

Work Permit Elements ◦ Description of equipment to be worked on and location ◦ Justification of why work must be performed in

energized condition ◦ Description of safe work practices to be employed ◦ Results of shock hazard analysis ◦ Determination of shock protection boundaries Article 130.2(B), page 22 Article 130.2(B)(3), page 23-Exceptions for

permit Annex J (figure J.2)

Electrical Safety Program-Work Permit

Lecture/Discussion

78

Electrical Safety Program-Work Permit Energized Electrical Work

Permit ◦ Determination of shock

protection boundaries ◦ Results of Flash Hazard Analysis ◦ Flash Protection Boundaries ◦ PPE ◦ Means employed to restrict

access of unqualified persons to persons working in area

◦ Job Briefing ◦ Approvals

Not required ◦ Routine Tasks ◦ Diagnostic (Voltage) Testing ◦ Troubleshooting

Work Permits document that work procedures have been

implemented

Lecture/Discussion


79

Host/Contract Employer

OSHA Compliance Directive CPL 02-00-124

Multi-Employer Citation Policy

Specifically Defines: Creating Employer Exposing Employer Correcting Employer Controlling Employer

80

NFPA 70E, Article 110.1(A), Page 70E-14

Host Employer ◦ Communicate any known

hazards with contract employer

◦ Report any observed contractor employer violations of NFPA 70E to contract employer

Lecture/Discussion



81

Contract Employer ◦ Communicate hazards to his employees as

communicated by the host employer in addition to the requirement of NFPA 70E

◦ Require that employees follow safe work practices as require by host employer and NFPA 70E

◦ Inform host employer of: Unusual hazards presented during work Unanticipated hazards Corrective actions taken as a result of any violations reported by the host employer

Lecture/Discussion


82

NFPA 70E, Article 110.1(B), Page 70E-14 Host Employer

◦ Communicate any known hazards with contract employer

◦ Report any observed contractor employer violations of NFPA 70E to contract employer

◦ There shall be a documented meeting between the host employer and the contract employer.

Lecture/Discussion



83

NFPA 70E, Article 130.3(H), page 16

Auditing ◦ Ensures that

principles and procedures are followed

◦ Required every three years

◦ Requires Field Work be audited

Electrical Safety Program-Auditing

Lecture/Discussion

84

Suggested Audit Items ◦ Work Permits ◦ Energized Electrical Work Procedures ◦ Contractor/Host Employer Relationships ◦ Annual inspections of qualified persons ◦ LOTO as is pertains to electrical safety ◦ Restriction of unqualified persons from approach

boundaries ◦ Risk Assessments ◦ Electrical Installations

Electrical Safety Program-Auditing

Lecture/Discussion


85

NFPA 70E, Article 110.2(A)-(E), Page 70E-14 to 15

Emergency Procedures Methods of release of

shock victims Fire and CPR (if duties

warrant)

Use of precautionary techniques and PPE

Training Requirements

Lecture/Discussion

86

If working in the limited approach boundary, trained in the following: Skills necessary to

distinguish exposed energized parts from other parts of electrical system

Skills necessary to determine nominal voltage

Approach distances Decision making process to

determine extent of hazard, PPE, and job planning


Lecture/Discussion


87

Retraining is necessary if: ◦ Annual inspections indicate

employee is not complying with safety work practices ◦ NFPA 70E, Article

110.2(D)(1)(f), Page 70E-15

◦ New equipment or technology ◦ Work practices as not part of one’s regular job duties

◦ Every 3-years ◦ NFPA 70E, Article

110.2(D)(3)


Lecture/Discussion

88

In order, each component can be address as follows: 1. Hazard Risk Evaluation 2. Arc flash and shock hazard analysis 3. Written electrical safety program/energized work

procedure implementation 4. Training requirements 5. Auditing requirements

Electrical Safety Program-Summary

Lecture/Discussion


Regulatory Requirements

A major US corporation experienced an accident that resulted in serious burn injuries to an electrical apprentice employee. OSHA investigated the accident and issued citations. The employer challenged the citations and the disagreement ended up before the Occupational Safety and Health Review Commission. As part of the citation OSHA contended that the employer violated a federal regulation because it did not provided or require its electricians to wear appropriate flame resistant personal protective, specifically FR coveralls and insulated gloves. OSHA also contended that the employer violated a regulation when it did not provide or require it’s electricians to wear appropriate face protection.

89


Case Study (Continued)

In the settlement, the employer agreed to develop hazard analysis in accordance with the personal protective equipment provisions in NFPA 70E. OSHA agreed that given the present state of it’s standards and regulations, the hazard analysis would achieve compliance with their requirements.




Exercise 4

OSHA has not adopted NFPA 70E, does not mandate NFPA 70E compliance, yet you can still be cited for non-compliance. Under what regulations can OSHA use NFPA 70E for non-compliance (or can they)?

91 Team Exercise

gearing up for the revised nfpa 70e electrical...

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