PSU Energized Electrical Safety Program

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PSU Energized Electrical Safety ProgramIssue Date: March 10, 2010

The Pennsylvania State University

Energized Electrical Safety ProgramIntroduction:

Electricity is a serious workplace hazard, capable of causing both employee injury

and property damage. It is the policy of the Pennsylvania State University (PSU) toprotect all employees, students, and other personnel from potential electrical hazards.

This will be accomplished through compliance with the work practices described

herein along with effective application of engineering controls, administrative

controls, and the use of personal protective equipment.

The PSU electrical safety program is founded on the principle of avoiding energized

work unless it is absolutely necessary. Live parts will be deenergized before anemployee works on or near them unless one of the following conditions applies:

Deenergizing introduces additional or increased hazards. Examples ofadditional or increased hazards would include interruption of life support

equipment, deactivation of emergency alarm systems, or shutdown of hazardouslocation ventilation systems.

Deenergizing is not possible due to equipment design or operationallimitations. Examples of this situation would include testing of electrical circuits

that can only be performed with the circuit energized and work on circuits thatform an integral part of a continuous process that would otherwise need to be

completely shut down in order to permit work on one circuit or piece of

equipment.

Live parts are operating at less than 50 volts to ground and there is noincreased exposure to electrical burns or to explosion due to electrical arcs.

Live parts are to be deenergized in accordance with the PSU Lockout/TagoutProgram. If live parts are not placed in an electrically safe condition, the work

practices described in this document must be used to protect employees.

Purpose:

This program has been established in order to:

Ensure the safety of employees who may work on or near electrical systems. Ensure that work units understand and comply with safety standards related to

electrical work.

Ensure that work units follow uniform practices during the completion ofelectrical work.

Scope & Applicability:

This program applies to all Penn State properties and work performed by Penn State

employees regardless of job site location. The Hershey Medical Center and the

College of Medicine are exempt from this program.

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Table of Contents

1.0 References2.0 Responsibilities3.0 Definitions4.0 Training5.0 Working On or Near Live Parts

5.1 Energized electrical work permit5.2 Testing, troubleshooting and voltage measuring5.3 Approach boundaries to live parts5.4 Other precautions for personnel activities

6.0 Personal Protective Equipment6.1 General requirements6.2 Flash protection boundary6.3 Flame-resistant apparel & underlayers6.4 Rubber insulating equipment

7.0 Insulated Tools & Equipment8.0 Labeling9.0 Alerting Techniques10.0 Contract EmployeesAppendix A: Energized Electrical Work Permit

Appendix B: Approach Boundaries to Live Parts for Shock Protection

Appendix C: Hazard/Risk Category Classifications

Appendix D: Protective Clothing and Personal Protective Equipment Matrix

Appendix E: PPE for Common Electrical Work Tasks at PSU

Appendix F: Work Unit PPE Requirements for Energized Tasks

Appendix G: Inspection Schedule for Rubber Insulating Equipment

Appendix H: Arc Flash Warning Label (Example)

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1.0 References:

The following documents were used as references when developing this program:

NFPA 70E, Standard for Electrical Safety in the Workplace, 2009 edition OSHA 29 CFR 1910.331 through 1910.335, Electrical Safety-Related Work

Practices Pennsylvania State University Lockout/Tagout Program- SY35

2.0 Responsibilities:2.1 Budget Executives and Budget Administrators

Ensure that responsibilities assigned within this program are carried outwithin their administrative work unit.

Designate individuals responsible for the implementation of the electricalsafety program within their work unit.

Actively support this program as part of the work units overall safetyeffort.

2.2 Environmental Health and Safety Department Assist work units in implementing the provisions of this program. Periodically review and update this written program. Provide or coordinate general training for work units on the content of this

program.

Evaluate the overall effectiveness of the electrical safety program on aperiodic basis.

Serve as chair of PSU Electrical Safety Committee.2.3 Safety Officers

Determine the applicability of the electrical safety program to activitiesconducted within their work unit.

Coordinate implementation of the electrical safety program within thework unit.

Assist in the investigation of all injuries and incident involving electricalwork.

Ensure that the records outlined in section 4.0 of this program aremaintained for their work unit.

2.4 Supervisors Ensure employees comply with all provisions of the electrical safety

program.

Ensure that electrical equipment is labeled with appropriate arc flashwarning labels.

Ensure employees receive training appropriate to their assigned electricaltasks and maintain documentation of such training.

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Develop and maintain a listing of all qualified employees under theirsupervision.

Ensure employees are provided with and use appropriate protectiveequipment.

2.5 Employees Follow the work practices described in this document, including the use of

appropriate protective equipment and completion of pre-use inspections.

Attend all training required relative to this program. Immediately report any concerns related to electrical safety to supervision.

2.6 OPP Electrical Engineering

Complete calculations required by this program when needed. Place an emphasis on controlling electrical hazards through the application

of engineering and design controls.

2.7 PSU Electrical Safety Committee

Meet on a periodic basis to review electrical safety issues at PSU. Review all energized electrical work permits submitted for approval. Promote consistency in how electrical tasks are completed within the

various work units of PSU.

3.0 Definitions:The following terms are defined in order to allow a better understanding of this

program:

Arc rating: The maximum incident energy resistance demonstrated by a material(or a layered system of materials) prior to breaking open or at the onset of asecond-degree skin burn. This rating is assigned to electrical protective clothing

and is normally expressed in calories per square centimeter (cal/cm2).

Electrically safe work condition: A state in which the conductor or circuit partto be worked on or near has been disconnected from energized parts,

locked/tagged in accordance with PSU policy, tested to ensure the absence ofvoltage, and grounded if determined necessary.

Energized: Electrically connected to or having a source of voltage. Exposed (as applied to live parts): Capable of being inadvertently touched or

approached from closer than a safe distance by a person. It is applied to parts thatare not suitably guarded, isolated, or insulated.

Flash hazard analysis: A study investigating a workers potential exposure toarc-flash energy, conducted for the purpose of injury prevention and the

determination of safe work practices along with appropriate levels of PPE.

Flash protection boundary: An approach limit at a distance from exposed liveparts within which a person could receive a second degree burn if an electrical arc

flash were to occur.

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Flash suit: A complete FR clothing and equipment system that covers the entirebody, except for the hands and feet. (Such a suit typically includes pants, jacket,and a bee-keeper style hood fitted with a face shield).

FR apparel: Flame-resistant apparel; describes a broad category of clothingdesigned to protect employees from electrical arc events during completion of

energized tasks. Incident energy: The amount of energy impressed on a surface, a certain distance

from the source, generated during an electrical arc event. One of the units used tomeasure incident energy is calories per square centimeter (cal/cm

2).

Limited approach boundary: An approach limit at a distance from an exposedlive part within which a shock hazard exists.

Live parts: Energized conductive components. Prohibited approach boundary: An approach limit at a distance from an

exposed live part within which work is considered the same as making contactwith the live part.

PPE: An acronym for Personal Protective Equipment. Qualified person: One who has skills and knowledge related to the construction

and operation of the electrical equipment and installation and has received

training on the hazards involved.

Restricted approach boundary: An approach limit at a distance from anexposed live part within which there is an increased risk of shock (due toelectrical arc-over combined with inadvertent movement) for personnel working

in close proximity to the live part.

Testing and Troubleshooting: Process of analyzing the operation of a faultypiece of electrical equipment/circuit in order to determine why it is notfunctioning normally. The multimeter is a commonly used piece of testing

equipment used to measure voltage and resistance. As soon as tools such as a

screwdriver, wrench, pliers, etc are used on or near a live circuit, the task is nolonger considered testing and troubleshooting.

Unqualified person: Any person who does not meet the definition of a qualifiedperson.

Working near (live parts): Any activity within a Limited Approach Boundary. Working on (live parts): Coming in contact with live parts via tools, probes, test

equipment, hands, feet, or other body parts regardless of the level of PPE worn.

There are two categories of working on:Diagnostic (testing) is taking readingsor measurements of electrical equipment with approved test equipment that does

not require making any physical change to the equipment; repairis any physical

alteration of electrical equipment (such as making or tightening connections,removing or replacing components, etc.)

4.0 Training:4.1Employees who are exposed to an electrical hazard that is not reduced to a safe

level by the installation (panel cover, outlet cover, etc) must be trained.

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4.2Training must be provided before the employee is assigned duties that involvework near or on electrical systems.

4.3The level of electrical safety training provided is dependent on whether theemployee is classified as a qualified person or unqualified person.

4.4A qualified person shall be trained and knowledgeable in all of the followingtopics:

1.) Construction and operation of equipment on which work is assigned.

2.) Skills and techniques necessary to distinguish exposed energized parts fromother parts of electrical equipment.

3.) Skills and techniques necessary to determine the nominal voltage of exposed

live parts.

An individual can obtain knowledge in the three topics listed abovethrough a combination of methods including the individuals education,

electric license, past work experience, and on-the-job training.4.) The approach distances specified in this document and the corresponding

voltages to which the qualified employee will be exposed.5.) The process necessary to determine the degree and extent of electrical hazards

along with the PPE and job planning necessary to perform the task safely.

An individual must attend an NFPA 70E training session approved byEHS to obtain the required knowledge of the two topics listed above.

4.5A person can be considered qualified with respect to certain equipment andmethods but unqualified for others.

4.6An unqualified person shall be trained in the inherent hazards of electricity andany related work practices that are necessary for their safety.

4.7Each work unit shall maintain a record of all electrical training provided to theiremployees along with a listing of all employees classified as qualified persons.

5.0 Working On or Near Live Parts:5.1Energized Electrical Work Permit:

5.1.1 If live parts are not placed in an electrically safe condition, work to be

performed shall be considered energized electrical work and will beperformed by written permit only.

5.1.2 A copy of the PSU Energized Electrical Work Permit can be foundin Appendix A of this document. The intent of this permit is to ensure

that all appropriate safety precautions are taken prior to starting

energized electrical work.

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5.1.3 The permit is to be originated by the individual requesting that theenergized work be completed. The requestor is responsible for

completing Section I of the permit.

o The requestor will normally be the supervisor of the employeeswho will be completing the work.

o The requestor may also be an individual from a work unit wherethe work is to be completed. If this is the case, Section I of thepermit must be completed by a unit administrator.

5.1.4 The qualified persons completing the task are responsible forcompleting Section II of the permit.

5.1.5 Members of the PSU Electrical Safety Committee must approve thepermit prior to commencing work. An approval signature must be

obtained from one committee member within each of the following

three groups:

OPP Electrical Engineer Member of EHS Safety Officer of Work Unit (if at University Park) or

Commonwealth Services Representative (if at a campus

location).

5.1.6 A job briefing is required before the start of each job involving

energized electrical work. Each qualified person shall be briefed on

the job. At a minimum the briefing must include the following:

associated electrical hazards, work procedures, special precautions,isolation points and procedures, emergency response, PPErequirements, and other work in the immediate area.

5.1.7 The permit must be posted in the area where the energized work is

taking place for the duration of the task.

5.1.8 At least two qualified employees must be present for all energized

work requiring a permit.

5.1.9 If both qualified employees are working on the circuit, an attendant is

required to control any unqualified person from entering the limitedapproach boundary. The attendant can be an unqualified person as

long as he or she remains outside the limited approach boundary.

5.1.10 Copies of all energized electrical work permits must be provided to

both the work unit Safety Officer and the EHS Department upon

completion of the task.

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5.2 Testing, Troubleshooting, and Voltage Measuring

5.2.1 Work related to testing, troubleshooting, and voltage measuring may

be completed without an energized electrical permit providedappropriate safe work practices and PPE are used.

5.3 Approach Boundaries to Live Parts:

5.3.1 Observing a safe approach distance from exposed energized parts is an

effective means of maintaining electrical safety. As the distance

between an individual and live parts increases, the potential for anelectrical injury decreases.

5.3.2 Safe approach distances will be determined for all tasks in whichapproaching personnel are exposed to live parts.

5.3.3 Safe approach distances to fixed live parts can be determined byreferring to Appendix B, Approach Boundaries to Live Parts for

Shock Protection. This appendix can be used to identify the Limited,

Restricted, and Prohibited Approach Boundaries associated with

various system voltages.

5.3.4 Unqualified persons may only cross the Limited Approach Boundarywhen they are under the direct supervision of a qualified person.

5.3.5 Qualified persons may not cross or take any conductive object closerthan the Restricted Approach Boundary unless one of the following

conditions applies:

The qualified person is insulated or guarded from the live parts andno uninsulated part of the qualified persons body crosses theProhibited Approach Boundary.

The live parts are insulated from the qualified person and from anyother conductive object at a different potential.

5.3.6 Crossing the Prohibited Approach Boundary is considered the same as

making contact with energized parts. Qualified persons may only

cross this boundary when all of the following precautions have been

taken:

The qualified person has specific training to work on energizedparts.

The qualified person has obtained an approved EnergizedElectrical Work Permit.

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The qualified person uses PPE appropriate for working onenergized parts which is rated for the voltage and energy levelinvolved.

5.4 Other Precautions for Personnel Activities:

5.4.1 Employees shall not reach blindly into areas that might contain

exposed live parts.

5.4.2 Employees shall not enter spaces containing live parts unless

illumination is provided that allows the work to be performed safely.

5.4.3 Conductive articles of jewelry and clothing (such as watchbands,

bracelets, rings, key chains, necklaces, metalized aprons, cloth with

conductive thread, metal headgear, or metal frame glasses) shall not beworn where they present an electrical contact hazard with exposed live

parts.

5.4.4 Conductive materials, tools, and equipment that are in contact with any

part of an employees body shall be handled in a manner that prevents

accidental contact with live parts. Such materials and equipmentinclude, but are not limited to, long conductive objects such as ducts,

pipes, tubes, conductive hose and rope, metal-lined rules and scales,

steel tapes, pulling lines, metal scaffold parts, structural members, and

chains.

5.4.5 When an employee works in a confined space or enclosed space (such

as a manhole or vault) that contains exposed live parts, the employeeshall use protective shields, barriers, or insulating materials as

necessary to avoid contact with these parts. Doors, hinged panels, and

the like shall be secured to prevent them from swinging intoemployees.

6.0 Personal Protective Equipment:6.1General Requirements

6.1.1 Employees working in areas where electrical hazards are present shall

be provided with, and shall use, protective equipment that is designedand constructed for the specific body part to be protected and for the

work to be performed.

6.1.2 Work units will provide electrical protective equipment required bythis program at no cost to employees, such as FR apparel, eye

protection, head protection, hand protection, insulated footwear, and

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face shields. Work units are not responsible for providing non-FRunderlayers to employees.

6.1.3 All protective equipment shall be maintained in a safe, reliablecondition by the employee to whom it is issued.

6.1.4 Employees shall wear nonconductive head protection whenever there

is a danger of head injury from electric shock or burns due to contactwith live parts or from flying objects resulting from an electrical

explosion.

6.1.5 Employees shall wear nonconductive protection for the face, neck, and

chin whenever there is danger of injury from exposure to electric arcs

or flashes or from flying objects resulting from an electrical explosion.

6.1.6 Employees shall wear protective equipment for the eyes whenever

there is a danger of injury from electric arcs, flashes, or from flyingobjects resulting from an electrical explosion.

6.1.7 Employees shall wear rubber insulating gloves where there is danger

of hand and arm injury due to contact with live parts or possibleexposure to arc flash burn. The following ratings can be found on

voltage rated gloves:

Class 00 = Protect against voltage up to 500 volts Class 0 = Protect against voltage up to 100 volts Class 1 = Protect against voltage up to 7500 volts Class 2 = Protect against voltage up to 17,000 volts Class 3 = Protect against voltage up to 26,500 volts Class 4 = Protect against voltage up to 36,000 volts

6.1.8 Where insulated footwear is used as protection against step and touch

potential, dielectric overshoes shall be required. Insulated footwearshall not be used as the primary protection. The integrity of the

insulating quality of such footwear cannot be established easily after

the worker has been wearing them in the working environment.

6.1.9 Face shields without an arc rating will not be used for electrical work.Safety glasses or goggles must always be worn underneath faceshields.

6.1.10 Additional illumination may be needed when using tinted face shieldsas protection during electrical work.

6.1.11 Employees shall wear hearing protection whenever there is a danger ofnoise overexposure resulting from an electrical explosion.

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6.2Flash Protection Boundary6.2.1 Personal protective equipment shall be provided to and used by all

employees working within the Flash Protection Boundary.

6.2.2 For systems that are 600 volts or less, the Flash Protection Boundaryshall be a minimum of four feet, based on the product of clearing time

of 2 cycles (0.033 sec) and the available bolted fault current of 50 KAor any combination not exceeding 100 kA cycles (1667 ampere

seconds). The Flash Protection Boundary for systems under 600

volts may also be calculated through engineering analysis usingAnnex D of NFPA 70E (2009 edition).

6.2.3 For systems that are above 600 volts, the Flash Protection Boundaryshall be determined through engineering analysis.

6.2.4 The specific protective equipment to be worn within the FlashProtection Boundary can be determined by one of the following three

methods:

(1)Complete a detailed flash hazard analysis under engineeringsupervision that determines the incident exposure energy of each

employee. Appropriate protective clothing can then be selectedbased on the calculated exposure level. Criteria for completing

such an analysis can be obtained from the EHS Department.

(2)Determine the hazard level of the task by referring to NFPA 70ETable 130.7 (C) (9), Hazard/Risk Category Classifications(Appendix C of this document). This table also indicates whethervoltage-rated gloves and/or voltage-rated tools need to be used.

Once the hazard level of the task has been determined, the required

PPE can then be ascertained from NFPA 70E Table 130.7 (C) (10),Protective Clothing and PPE Matrix. (Appendix D of this

document).

(3)Refer to Appendix E of this document to determine the necessaryPPE for a given task. This appendix defines the PPE requirements

for common electrical tasks based on the information contained in

Appendices C and D.

6.2.5 Each work unit shall develop and maintain a listing of the specific PPE

requirements for each energized electrical task conducted by theiremployees using the form found in Appendix F of this document.

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6.3Flame-Resistant Apparel & Underlayers6.3.1 FR apparel shall be visually inspected before each use. FR apparel

that is contaminated or damaged shall not be used. Protective itemsthat become contaminated with grease, oil, flammable liquids, or

combustible liquids shall not be used.

6.3.2 The garment manufacturers instructions for care and maintenance ofFR apparel shall be followed.

6.3.3 When FR apparel is worn to protect an employee, it shall cover allignitable clothing and allow for movement and visibility.

6.3.4 FR apparel must cover potentially exposed areas as completely aspossible. FR shirt sleeves must be fastened and FR shirts/jackets must

be closed at the neck.

6.3.5 Non-melting, flammable garments (i.e. cotton, wool, rayon, silk, or

blends of these materials) may be used as underlayers beneath FR

apparel.

6.3.6 Meltable fibers such as acetate, nylon, polyester, polypropylene, and

spandex shall not be permitted in fabric underlayers next to the skin.(An incidental amount of elastic used on non-melting fabric underwear

or socks shall be permitted).

6.3.7 When FR apparel is required, garments worn as outer layers over FR

apparel (i.e. jackets or rainwear) must also be made from FR material.

6.3.8 Flash suits must permit easy and rapid removal by the user.

6.4Rubber Insulating Equipment6.4.1 Rubber insulating equipment includes protective devices such as

gloves, sleeves, blankets, and matting.

6.4.2 Insulating equipment must be inspected for damage before each days

use and immediately following any incident that could have caused

damage.

6.4.3 An air test must be performed on rubber insulating gloves before each

use. To complete an air test, manually fill the glove with air. Foldover the cuff to seal the air inside the glove. Detect any leaking air by

either listening for escaping air or feeling the escaping air by holding

the glove near the face.

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6.4.4 Insulating equipment found to have defects that might affect itsinsulating properties must be removed from service until testing

indicates that it is acceptable for continued use.

6.4.5 Where the insulating capability of protective equipment is subject to

damage during use, the insulating material shall be protected by anouter covering of leather or other appropriate material.

6.4.6 Rubber insulating equipment must be tested according to the schedule

in Appendix G.

6.4.7 Rubber insulating equipment must be stored in an area protected from

light, temperature extremes, excessive humidity, ozone, and other

substances and conditions that may cause damage.

6.4.8 No repairs to rubber insulating equipment shall be attempted without

the approval of the EHS Department.

7.0Insulated Tools & Equipment:7.1 Only insulated tools and equipment shall be used within the Limited

Approach Boundary of exposed energized parts.

7.2 Insulated tools shall be rated for the voltages on which they are used. 7.3 Insulated tools shall be designed and constructed for the environment to which

they are exposed and the manner in which they are used.

7.4 Fuse or fuse holder handling equipment, insulated for the circuit voltage, shallbe used to remove or install a fuse if the fuse terminals are energized.

7.5 Ropes and handlines used near exposed energized parts shall benonconductive.

7.6 Portable ladders used for electrical work shall have nonconductive side rails.

8.0Labeling:8.1 All switchboards, panel boards, industrial panels, motor control centers, and

meter socket enclosures shall be labeled using a label similar to the one foundin Appendix H.

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9.0Alerting Techniques:9.1 Barricades shall be used in conjunction with safety signs to prevent or limit

access to work areas containing live parts. Conductive barricades shall not beused where they might cause an electrical hazard. Barricades shall be placed

no closer than the Limited Approach Boundary.

9.2 If signs and barricades do not provide sufficient protection, an attendant willbe assigned to warn and protect pedestrians. The primary duty of the

attendant shall be to keep unqualified persons out of the work area where an

electrical hazard exists. The attendant shall remain in the area as long as thereis a potential exposure to electrical hazards.

10.0 Contract Employees:10.1 PSU shall inform contractors engaged in electrical work of any known

hazards applicable to the work being performed. Contractors are required tofollow all applicable OSHA regulations and NFPA 70E standards.

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Appendix A: Energized Electrical Work Permit

Part I: To be completed by the requester or supervisor of the job(1) Identify requester: Name:__________________________ Work Unit:__________________________

(2) Job location:

(3) Description of work to be done:

(4) Explain why the circuit cannot be deenergized or the work delayed until the next scheduled outage:

(5) Signature of requester:___________________________Title:__________________________________

Part II: To be completed by the qualified person(s) completing the work(6) Description of circuit and equipment:

(7) Detailed description of procedure to be used in performing the above work:

(8) Safe work practices to be used: (Check all that apply)

Barriers/Boundaries Non-conductive covers/blanketsVoltage rated tools Attendant

PPE OTHER (Describe)

LOTO other circuits/tools

(9) Maximum Voltage that will be exposed:

(10) What rating is the upstream protective device? (Amperage):

(11) Limited, Restricted and Prohibited Boundaries for shock hazard: Refer to the arc flash label (if present), if not

see Appendix B of this program or Table 130.2(c) in the NFPA 70E 2009 standard)

Limited boundary =_________________________ Restricted boundary = _______________________ Prohibited boundary =_______________________

(12) Determination of flash protection boundaries:

4 Feet for 600 Volts or less, based on the product of clearing time of 2 cycles (0.033 sec) and the available

bolted fault current of 50 KA or any combination not exceeding 100 kA cycles (1667 ampere seconds). Higher Voltages must be calculated by Electrical Engineer. Calculation Results: _____Ft ______inches

(13) Hazard/Risk Category (See Appendix D of this program):

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(14) PPE required to safely perform the task: (Either see Appendix C and D of this program, Tables 130.7(c)(9) and

130.7(c)(10) in the NFPA 70E 2009 standard, or Appendix E)

- Check all that apply.

- Circle class of PPE and minimum calorie rating where applicable.

Voltage rated gloves class 00, 0, 1, 2, 3, 4

Long sleeve shirt (non-melting)

Voltage rated tools Long pants (non-melting)

Safety glasses or goggles Long sleeve FR shirt - Calorie rating 4, 8, 25, 40

Hearing protection Long FR pants - Calorie rating 4, 8, 25, 40

Hardhat - (Class C up to 2,200 Volts / Class G up to

20,000 Volts) FR coveralls- Calorie rating 4, 8, 25, 40

Hardhat with flame retardant liner - (Class C up to

2,200 Volts / Class G up to 20,000 Volts)

FR jacket or rainwear- Calorie rating 4, 8, 25, 40

Leather boots/shoes Flash suit- Calorie rating 4, 8, 25, 40

Leather gloves Flash hood - Calorie rating 4, 8, 25, 40

Dielectric over-boots/shoes Balaclava (sock hood) Hazard/Risk Category 2*only

Arc rated face-shield - Calorie rating 4, 8, 25, 40 OTHER:

(15) Method used to restrict access to the work area:

Safety Signs and Tags (tape, physical barrier)

Attendant

(16) Will a job briefing be completed that covers all of the following items? Yes

Hazards associated with the job Energy source controls

Work procedures involved PPE

Special precautions Other

Do you agree the above work can be done safely? Yes (Forward to EHS) No (Return to requester) Note that

additional information may be requested by the PSU Electrical Safety Committee.

Qualified Person performing work: ____________________________________ Date: ______________Qualified Person performing work: ____________________________________ Date: ______________

Attendant:_________________________________________________________ Date: ______________

Qualified Persons Supervisor: _______________________________________ Date: _______________

Part III: To be completed by members of PSU Electrical Safety Committee

Approvals:

Safety Officer (UP): Signature__________________________Job Title__________________Date______________

Commonwealth Services Representative (Campus): Signature__________________Job Title___________Date_____

Electrical Engineer (OPP): Signature__________________Job Title____________________________Date________

EHS: Signature______________________Job Title______________________________Date___________________

Permit Expiration Date:

Approved NOT Approved

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Appendix B: Approach Boundaries to Live Parts for Shock Protection

(All dimensions are distance from live part to employee)

Nominal System

Voltage(phase to phase)

Limited Approach

Boundary(fixed circuit parts

only)

Restricted

ApproachBoundary

(includes

inadvertent

movement adder)

Prohibited

ApproachBoundary

Less than 50 V Not Specified Not Specified Not Specified

50 V to 300 V 3 feet, 6 inches Avoid Contact Avoid Contact

301 V to 750 V 3 feet, 6 inches 1 foot 1 inch

751 V to 15 kV 5 feet 2 feet, 2 inches 7 inches

Over 15 kV ormovable conductor

See NFPA 70 E Table 130.2 (C)

Limited Approach Boundary: Distance from an exposed live part within which a shockhazard exists. An unqualified person may not cross this boundary unless they are

continuously escorted by a qualified person.

Restricted Approach Boundary: Distance from an exposed live part within which thereis an increased risk of shock (due to electrical arc-over combined with inadvertent

movement) for personnel working in close proximity to the live part. This boundary mayonly be crossed by a qualified person who is safely insulated or guarded from the live

parts.

Prohibited Approach Boundary: Distance from an exposed live part within which workis considered the same as making contact with the live part. This boundary may only be

crossed by a qualified person who has specific training to work on energized parts; hasobtained an approved Energized Electrical Work Permit; and uses PPE appropriate for

working on energized parts which are rated for the voltage and energy level involved.

(Note: A permit is not required for work related to testing, troubleshooting, and voltagemeasuring).

Flash Protection Boundary (not listed in table): Distance from exposed live partswithin which a person could receive a second degree burn if an electrical arc flash were

to occur. This boundary may only be crossed by a qualified person wearing theappropriate PPE. For systems that are 600 volts or less, the Flash Protection Boundary

shall be a minimum of four feet, based on the product of clearing time of 2 cycles (0.033

sec) and the available bolted fault current of 50 KA or any combination not exceeding100 kA cycles (1667 ampere seconds). (The Flash Protection Boundary for systems

under 600 volts that do not meet the above criteria or are above 600 Volts will be

determined by an Electrical Engineer). An engineering analysis must be performed todetermine the Flash Protection Boundary for systems that are above 600 volts.

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Appendix C: Hazard/Risk Category Classifications

Tasks Performed on Energized Equipment

Hazard/Risk

Category

Rubber

Insulating

Gloves

Insulated

and

Insulating

Hand ToolsPanelboards Rated 240 V and Below (See Note 1)Perform infrared thermography and other non-contact

inspections outside the restricted approach boundary

0 N N

Circuit breaker (CB) or fused switch operation with

covers on

0 N N

CB or fused switch operation with covers off 0 N N

Work on energized parts, including voltage testing 1 Y Y

Remove/install CBs or fused switches 1 Y Y

Removal of bolted covers (to expose bare, energizedelectrical conductors and circuit parts) 1 N N

Opening hinged covers (to expose bare, energizedelectrical conductors and circuit parts) 0 N N

Work on energized electrical conductors and circuit

parts fed directly by a branch circuit of the panelboard

1 Y Y

Panelboards or Switchboards Rated > 240 V and up to 600 V (with molded case or

insulated case circuit breakers) (See Note 1)Perform infrared thermography and other non-contact

inspections outside the restricted approach boundary

1 N N

CB or fused switch operation with covers on 0 N N

CB or fused switch operation with covers off 1 Y N


parts, including voltage testing 2 * Y Y


parts of utilization equipment fed directly by a branch

circuit of the panelboard or switchboard

2* Y Y

Other 600 V Class (277 V through 600 V, nominal) Equipment - Note 2 (except as

indicated)Removal of bolted covers (to expose bare, energized

electrical conductors and circuit parts)

2* N N

Opening hinged covers (to expose bare, energizedelectrical conductors and circuit parts)

1 N N


parts, including voltage testing.

2* Y Y

Application of safety grounds, after voltage testing 2* Y N

Additional Information: See NFPA 70E Table 130.7(C)(9) for more tasks and voltages

Rubber insulating gloves are gloves rated for the maximum line-to-line voltage upon which work will bedone.

Insulated and insulating hand tools are tools rated and tested for the maximum line-to-line voltage uponwhich work will be done, and are manufactured and tested in accordance with ASTM F 1505, Standard

Specification for Insulated and Insulating Hand Tools.

Y = Yes (required) N = No (not required)Notes:(1) Maximum of 25 kA short circuit current available; maximum of 0.03 second (2 cycle) fault clearing time.(2) Maximum of 65 kA short circuit current available; maximum of 0.03 second (2 cycle) fault clearing time.

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Appendix D: Protective Clothing and Personal Protective Equipment (PPE) Matrix

Hazard/Risk Category Protective Clothing and PPE

Hazard/Risk Category 0

Protective Clothing, Nonmelting (according to ASTMF 1506-00) or Untreated Natural Fiber (i.e., untreated

cotton, wool, rayon, or silk, or blends of these

materials with a fabric weight of at least 4.5 oz/yd2)

FR Protective Equipment

Shirt (long sleeve) and Pants (long)

Safety glasses or safety goggles

Hearing protection (ear canal inserts)

Leather gloves (As needed) (Note 2)


FR Clothing, Minimum Arc Rating of 4 cal/cm2 (Note1)


Arc-rated long-sleeve shirt and pants (Note 3)or Arc- rated coveralls (Note 4)

Arc-rated face shield or arc flash suit hood (Note 7)Arc-rated jacket, parka, or rainwear (As needed)

Hard hat

Safety glasses or safety gogglesHearing protection (ear canal inserts)

Leather gloves (Note 2)

Leather work shoes (As needed)


FR Clothing, Minimum Arc Rating of 8 cal/cm2 (Note

1)


Arc-rated long-sleeve shirt and pants (Note 5)

or Arc-rated coveralls (Note 6)

Arc-rated face shield or arc flash suit hood (Note 7)

Arc-rated jacket, parka, or rainwear (As needed)

Hard hat



Leather work shoes

Hazard/Risk Category 2*

FR Clothing, Minimum Arc Rating of 8 cal/cm2 (Note

1)



or Arc-rated coverall (Note 6)Arc-rated arc flash suit hood (Note 10)


Hard hat



Leather work shoes

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FR Clothing, Minimum Arc Rating of 25 cal/cm2

(Note 1)



or Arc-rated coverall (Note 8)

Arc-rated flash suit jacket (Note 8)

Arc-rated flash suit pants (Note 8)Arc-rated flash suit hood (Note 8)


Hard hat with FR hard hat linerSafety glasses or safety goggles


Arc-rated gloves (Note 2)Leather work shoes


FR Clothing, Minimum Arc Rating of 40 cal/cm2

(Note 1)



or Arc-rated coverall (Note 9)

Arc-rated flash suit jacket (Note 9)Arc-rated flash suit pants (Note 9)Arc-rated flash suit hood (Note 9)


Hard hat with FR hard hat liner

Safety glasses or safety goggles



Leather work shoes

Notes:

1. See Table 130.7 (C) (11). Arc rating for a garment or system of garments is expressed in cal/cm2.2. If rubber insulating gloves with leather protectors are required, additional leather or arc-rated gloves

are not required. The combination of rubber insulating gloves with leather protectors satisfies the arc

flash protection requirement.3. The FR shirt and pants used for Hazard/Risk Category 1 shall have a minimum arc rating of 4 cal/cm24. Alternate is to use FR coveralls (minimum arc rating of 4 cal/cm2) instead of FR shirt and FR pants5. FR shirt and FR pants used for Hazard/Risk Category 2 shall have a minimum arc rating of 8 cal/cm26. Alternate is to use FR coveralls (minimum arc rating of 8 cal/cm2) instead of FR shirt and FR pants.7. A face shield with a minimum arc rating of 4 cal/cm2 for Hazard Risk Category 1 or a minimum arc

rating of 8 cal/cm2 for Hazard/Risk Category 2, with wrap-around guarding to protect not only theface, but also the forehead, ears, and neck (or alternatively, a flash suit hood), is required.

8. An alternate is to use a total FR clothing system and hood, which shall have a minimum arc rating of25 cal/cm2 for Hazard/Risk Category 3.

9. The total clothing system consisting of FR shirt and pants and/or FR coveralls and/or arc flash coat andpants and hood shall have a minimum arc rating of 40 for Hazard/Risk Category 4.

10. Alternate is to use face shield with a minimum arc rating of 8 cal/cm2 and a balaclava (sock hood) witha minimum arc rating of 8 cal/cm2 and which covers the face, head and neck except for the eye andnose areas.

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Appendix E

PPE for Common Electrical Work Tasks at PSU

(Not an all inclusive listing of work tasks)

(PPE contingent on criteria found in the Notes section of Appendix C)

Panelboards or other equipment rated 240 V and below

Job Tasks performed on energized

equipment

Protective Requirements

Perform infrared thermography and other non-

contact inspections outside the restricted approach

boundary. (hazard/risk category 0)

Non-melting or untreated natural fiber:

Long sleeve shirt Long pants

PPE: Safety glasses or safety goggles Hearing protection Leather gloves (as needed)

Circuit breaker or fused switch operation with

covers on. (hazard/risk category 0)Non-melting or untreated natural fiber:


PPE:

Safety glasses or safety goggles Hearing protection Leather gloves (as needed)


covers off. (hazard/risk category 0)Non-melting or untreated natural fiber:


PPE:


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Job Tasks performed on energizedequipment



parts, including voltage testing and troubleshooting.

(hazard/risk category 1)

FR Clothing, minimum arc rating of 4:

Long sleeve shirt and long pants(Cal rating of 4)

ORCoveralls (Cal rating of 4) Face-shield or flash suit hood (Cal

rating of 4)

Jacket, parka, or rainwear (asneeded based on conditions)

PPE: Hardhat Safety glasses or goggles Hearing protection Rubber insulating gloves Leather gloves Leather work shoes (as needed)

Remove or install circuit breakers or fusedswitches. (hazard/risk category 1)



ORCoveralls (Cal rating of 4)

Face-shield or flash suit hood (Calrating of 4)


PPE:

Hardhat Safety glasses or goggles Hearing protection Rubber insulating gloves Leather gloves Leather work shoes (as needed)

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Removal of bolted covers (to expose bare,

energized electrical conductors and circuit parts).





rating of 4)


PPE: Hardhat Safety glasses or goggles Hearing protection Leather gloves Leather work shoes (as needed)

Opening hinged covers (to expose bare, energized

electrical conductors and circuit parts). (hazard/riskcategory 0)


Shirt (long sleeve) Pants (long)

PPE: Safety glasses or safety goggles Hearing protection Leather gloves (as needed)

Work on energized electrical conductors and circuitparts of utilization equipment fed directly by branch

circuit of the panelboard. (hazard/risk category 1)




rating of 4)


PPE:


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Panelboards or Switchboards Rated greater than 240 V and up to

600 Volts (with molded case or insulated case circuit breakers)


equipment


Perform infrared thermography and other non-

contact inspections outside the restricted approachboundary. (hazard/risk category 1)




rating of 4)


PPE:

Hardhat Safety glasses or goggles Hearing protection Leather gloves Leather work shoes (as needed)

Circuit or fused switch operation with covers on.



Shirt (long sleeve) Pants (long)

PPE:



covers off. (hazard/risk category 1)




rating of 4)


PPE:


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Panelboards or Switchboards Rated greater than 240 V and up to

600 Volts (with molded case or insulated case circuit breakers)



Work on energized electrical conductors and circuitparts, including voltage testing and troubleshooting.

(hazard/risk category 2*)


Long sleeve shirt AND long pants(Cal rating of 8) ORCoveralls

(Cal rating of 8)

Arc flash suit hood ORFace shield (Cal rating of 8)

AND Balaclava (Cal rating of 8)


PPE:

Hardhat Safety glasses or goggles Hearing protection Rubber insulating gloves Leather gloves Leather work shoes

Work on energized electrical conductors and circuitparts of utilization equipment fed directly by a

branch circuit of the panelboard or switch.


FR Clothing, minimum arc rating of 8: Long sleeve shirt AND long pants

(Cal rating of 8) ORCoveralls(Cal rating of 8)




PPE:

Hardhat Safety glasses or goggles Hearing protection Rubber insulating gloves Leather gloves Leather work shoes

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Other 600 V Class (277 V through 600 V, nominal) Equipment


equipment


Lighting or small power transformers (600 V, maximum)

Removal of bolted covers (to expose bare,energized electrical conductors and circuit parts)



Long sleeve shirt AND long pants(Cal rating of 8) ORCoveralls

(Cal rating of 8)




PPE:

Hardhat Safety glasses or goggles Hearing protection Leather gloves

Leather work shoesOpening hinged covers (to expose bare, energizedelectrical conductors and circuit parts)





rating of 4)


PPE:

Hardhat Safety glasses or goggles Hearing protection Leather gloves Leather work shoes (as needed)

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Other 600 V Class (277 V through 600 V, nominal) Equipment


equipment



parts, including voltage testing.(hazard/risk category 2*)


Long sleeve shirt AND long pants(Cal rating of 8) ORCoveralls (Cal

rating of 8)




PPE:

Hardhat Safety glasses or goggles Hearing protection Rubber Insulating gloves Leather gloves Leather work shoes

Application of safety grounds, after voltage testing



Long sleeve shirt AND long pants(Cal rating of 8) ORCoveralls (Calrating of 8)




PPE: Hardhat Safety glasses or goggles Hearing protection Rubber Insulating gloves Leather gloves Leather work shoes

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Appendix F: Work Unit PPE Requirements for Energized Tasks

Description of Task Equipment Voltage Hazard/Risk

Category

Specific PPE To Be

Worn

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Appendix G: Inspection Schedule for Rubber Insulating Equipment

Type of Equipment When to TestRubber insulating line hose Upon indication that insulating value is

suspect

Rubber insulating covers Upon indication that insulating value is

suspect

Rubber insulating blankets Before first issue and every 12 months

thereafter (*)

Rubber insulating gloves Before first issue and every 6 months

thereafter (*)

Rubber insulating sleeves Before first issue and every 12 monthsthereafter (*)

(*) If the insulating equipment has been electrically tested but not issued for service, it may

not be placed into service unless is has been electrically tested within the previous 12months.

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Appendix H: Arc Flash Warning Label (Example)

PSU Energized Electrical Safety Program

Documents

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