J.19 FAA Order JO 3900.64.pdf

U.S. DEPARTMENT OF TRANSPORTATION

FEDERAL AVIATION ADMINISTRATION

Air Traffic Organization Policy

ORDER

JO 3900.64

Effective Date:

5/21/2013

SUB J: Air Traffic Organization Electrical Safety Program

1. This Order establishes the policy, procedures, and guidance for the Federal Aviation Administration (FAA) Air Traffic Organization (ATO) to provide practical safe working areas for employees related to the hazards arising from the exposure to electricity. Compliance with this Order will also assist in the prevention of electrical exposures in the workplace by providing guidelines and direction on implementation, employee training, design, and construction.

2. This Order is intended to meet the regulations established by the Occupational Safety and Health Administration (OSHA) and the consensus standards established by the National Fire Protection Association (NFPA), including the 2011 National Electrical Code (NFPA 70), the 2012 Standard for Electrical Safety in the Workplace (NFPA 70E), and the 2010 Recommended Practice for Electrical Equipment Maintenance (NFPA 70B).

3. This Order describes hazards associated with work on electrical and electrical power distribution systems as applied to the FAA work environment. Injuries associated with exposure to electrical energy can be detrimental to employee safety and health, the operation of the National Airspace System, and may result in significant Office of Workers' Compensation Programs costs to the Agency.

Therefore, when electrical hazards cannot be eliminated, employees must be protected from these hazards utilizing electrical safety principles, the Energized Electrical Work Permit (EEWP), Personal Protective Equipment (PPE), insulated and insulating tools, and applicable training.

4. Consult an ATO Occupational Safety and Health (OSH) Professional to address electrical safety situations not addressed in this Order.

Chief Operating Officer Air Traffic Organization

Distribution: A-FAF/FAT-0 (STD) Initiated By: AJW-23

5/21/2013 JO 3900.64

Table of Contents Paragraph Page

Chapter 1. General Requirements

1. Purpose of This Order 1-1

2. Audience 1-1

3. Where Can I Find This Order 1-1

4. Policy 1-1

5. Responsibilities 1-1

Chapter 2. Electrical Safety Program Requirements

1. Overview 2-1

2. Safe Work Practices 2-1

3. Energized Electrical Work Permit (EEWP) 2-9

4. Training Requirements 2-10

5. Personal Protective Equipment (PPE) 2-12

6. Insulated, Insulating, and Voltage Rated Tools 2-17

7. Electrical Test Instruments and Equipment 2-20

8. Design, Construction, and Acquisition Requirements 2-21

Appendix A. NFPA 70E Table 130.7(C)(15)(a) A-l

Appendix B. Definitions B-l

Appendix C. Drivers, Regulatory, and Consensus Requirements C-l

Appendix D. EEWP Instructions D-l

Appendix E. Energized Electrical Work Permit E-l

Appendix F. Arc Flash Hazard Analysis Flow Chart F-l

Appendix G. Example Generic Labels G-l

Appendix H. Two-Person Rule Decision Tree H-l

Appendix I. Personal Protective Equipment (PPE) Categories 1-1

Appendix J. Short Circuit Current/Clearing Time Supporting Documentation J-1

Appendix K. Administrative Information K-l

List of Tables Table Page

2-1. Electrical Safety Training Requirements 2-11 2-2. Glove Class Maximum Use Voltage 2-14

List of Figures Figure Page

2-1. Label Example 2-8

Chapter 1. General Requirements

1. Purpose of This Order. The FAA ATO seeks to provide a safe workplace for all employees by providing work procedures, guidance, and training related to workplace electrical hazards. The Electrical Safety Program (ESP) Order provides guidance to all FAA ATO employees, including managers and supervisors, who directly, and/or indirectly, work in or around areas with exposure to electrical hazards.

2. Audience. This Order affects all FAA ATO personnel managing and/or working on electrical equipment.

3. Where Can I Find This Order? You can find an electronic copy of this order on the Directives Management System (DMS) website: https://emplovees.faa.gov/tools_resources/orders_notices/. Or go to the MyFAA Employee website, select 'Tools and Resources', then select 'Orders and Notices'.

4. Policy. It is the ATO policy that employees comply with the ATO ESP as part of an incident prevention program. This guidance represents the minimum requirements for the ESP. Site-specific requirements may be more stringent based upon local risk assessments.

5. Responsibilities.

a. Vice Presidents within the ATO will ensure the overall implementation of this Order for the respective Service Units.

b. Director, Air Traffic Control Facilities will ensure the overall implementation of this Order for each Service Area (SA) within the ATO.

c. Manager, Electrical Safety Program (Environmental Occupational Safety and Health (EOSH) Services, AJW-23) will:

(1) Provide technical requirements and resources to ensure the overall implementation of this Order for the ATO.

(2) Provide technical assistance to the SAs/Service Centers (SCs)/Engineering Services (ES) Electrical Safety Team to assist in the implementation of this Order.

(3) Provide technical assistance to ES and acquisition teams to ensure new and legacy FAA facilities, systems, and equipment incorporate electrical safety requirements in design, construction, renovation, and implementation projects.

(4) Perform program audits for the national ESP. The frequency of the audit must not exceed 3 years.

(5) Provide national program oversight for the ESP.

1-1 https://emplovees.faa.gov/tools_resources/orders_notices/

(6) Ensure warning labels are created and installed for arc flash hazard assessments (AFHA) and analyses completed by EOSH Services.

d. S A Director of Operations will ensure the overall implementation of this Order for the SA within Technical Operations.

e. SC Planning and Requirements (P&R) Group Manager will provide oversight of the P&R teams to ensure support to the S A Directors concerning this Order.

f. SC Program Implementation Manager for Occupational Safety and Health Safety will:

(1) Ensure sufficient resources are requested and made available to the SA to support the effectiveness of this Order.

(2) Provide advice to management on issues or concerns related to the implementation of the Order.

(3) Ensure the implementation of training programs in accordance with (LAW) this Order.

g. SC Planning and Requirements OSH Specialists will:

(1) Oversee the technical requirements of this Order to ensure compliance with current FAA requirements, OSHA and applicable consensus standards.

(2) Serve as the subject matter expert to SA Directors regarding technical requirements of the ESP.

(3) Assist the ES EOSH Coordinator with review of engineering packages to ensure that proper electrical safety requirements are included.

(4) Maintain current knowledge on available electrical safety equipment to facilitate evaluations, recommendations, and the purchasing of appropriate equipment.

(5) Evaluate appropriate training materials and courses for the SA.

h. ES Managers will:

(1) Ensure new installations and upgrades, etc., performed at all facilities are coordinated through the Technical Support Center (TSC) and System Support Center (SSC) Manager.

(2) Ensure that all engineering packages meet or exceed the requirements contained in this Order, and assist the Contracting Officer's Technical Representative (COTR) with related contract requirements as needed.

(3) Submit engineering package for installations that will affect electrical systems to the TSC Manager, SSC Manager, and Safety and Environmental Compliance (SECM) for review.

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(4) Ensure that facility single line diagrams are updated during construction, installation, modification, and renovation projects.

(5) Resolve non-compliant electrical safety issues associated with ES projects.

(6) Report any electrical incidents or accidents, or near-misses in accordance with accident reporting requirements in FAA Order 3900.19, Occupational Safety and Health Program, and report via FAA Form 3900-6, Safety Management Information System (SMIS).

(7) Ensure AFHA is performed on projects involving installation of new facilities or equipment where required.

(8) Ensure AFHA is performed during new equipment installations, modifications or renovations at operational facilities, where required.

(9) Successfully complete the Electrical Safety Qualified Person (ESQP) training course.

(10) Ensure affected employees have received electrical safety training and that all training is recorded in the appropriate system of record.

(11) Manage the electrical PPE testing/exchange program for all equipment that requires periodic testing for their employees.

(12) Provide appropriate PPE, including insulating gloves and tools, arc-rated PPE, and other equipment to all affected ES employees.

(13) Discuss safe working practices with employees during their mid-term and annual performance reviews and periodically observe employees performing work safely in daily activities.

(14) Ensure the integration of electrical safety requirements in all planning, design, construction, installation, commissioning, modification, and maintenance activities.

(15) Ensure the appropriate implementation of the EEWP.

(16) Ensure affected ES engineers and/or installers have received appropriate electrical systems technical training and electrical safety training on electrical systems they are designing, installing or modifying.

(17) Ensure warning labels are created and installed for arc flash hazard assessments and analyses completed by ES.

i. District Office Managers will:

(1) Ensure implementation and maintain compliance of the ESP throughout the District.

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(2) Ensure the appropriate resources are available to support the ESP.

(3) Ensure Technical Services Operations Group (TSOG) reviews all project design and/or renovation documents for electrical safety issues.

(4) Ensure that all District Office personnel are trained to the appropriate level for assigned tasking, and that all training is recorded in the appropriate system of record.

(5) Ensure that appropriate PPE, including insulating gloves and tools, arc-rated PPE, and other equipment is available at all District and/or SSC work locations.

(6) Report any electrical incidents or accidents, or near-misses in accordance with accident reporting requirements in FAA Order 3900.19, and report via FAA Form 3900-6 SMS.

(7) Ensure qualified personnel conduct accident investigations in accordance with FAA Order 3900.19, Chapter 7, Mshap Reporting and Investigation.

j . TSOG/TSC Manager will:

(1) Coordinate review of project documentation with the SECM and SSC Manager (e.g., engineering package specifications, scopes of work, transmittals, and drawings) as needed, to facilitate compliance with the ESP.

(2) Ensure the integration of electrical safety requirements in all construction, installation, commissioning, modification, maintenance, and other projects.

(3) Ensure that facility single line diagrams are kept current and/or updated during construction, installation, modification, and renovation projects.

(4) Provide assistance as required during installation, construction, renovation or maintenance activities at all facilities to ensure compliance with the ESP.

(5) Assist the District with the Joint Acceptance Inspection process to ensure compliance with the ESP program as required.

(6) Ensure the implementation of the ESP throughout the TSOG.

(7) Report any electrical incidents or accidents, or near-misses in accordance with accident reporting requirements in FAA Order 3900.19, and report via FAA Form 3900-6, SMS.

(8) Ensure TSOG personnel are appropriately trained for the assigned tasking, and that all Ixaining is recorded in the appropriate system of record.

(9) Provide the appropriate PPE, including insulating gloves and tools, arc flash related PPE, and other equipment to all affected TSOG employees.

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(10) Successfully complete the ESQP training course.

(11) Manage the electrical PPE testing/exchange program for all equipment that requires periodic testing for all TSOG employees.

(12) Discuss safe working practices with employees during their mid-term and annual performance reviews and periodically observe employees performing work safely in daily activities.

k. SECM/Environmental Protection Specialist, and ES EOSH Coordinator, and William J. Hughes Technical Center Safety Managers, will:

(1) Serve as the designated technical point of contact and provide oversight for the ESP.

(2) Assist respective training specialists in coordinating appropriate electrical safety training.

(3) Provide consultation for the completion and evaluation of the EEWP.

(4) Assist with the review of engineering package (e.g., specifications, scopes of work, transmittals, and drawings) for compliance with electrical safety requirements, and assist the COTR with related requirements, as needed.

(5) Successfully complete the ESQP training course.

1. SSC/Front Line Managers will:

(1) Implement the ESP at all facilities occupied and/or maintained by Technical Operations employees.

(2) Successfully complete the ESQP training course.

(3) Ensure affected employees have received the appropriate level of electrical safety and technical training including refresher training and the prerequisite first-aid and cardiopulmonary resuscitation (CPR) training (current certifications).

(4) Provide the appropriate PPE including insulating gloves and tools, arc-rated PPE, and other equipment to all affected SSC employees.

(5) Manage the electrical PPE testing/exchange program for all equipment that requires periodic testing.

(6) Discuss safe working practices with employees during their mid-term and annual performance reviews and periodically observe employees performing work safely in daily activities.

(7) Ensure new installation, construction, or renovation activities are coordinated through the local TSC Manager.

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(8) Ensure the integration of electrical safety requirements in all construction, installation, commissioning, modification, maintenance, and other projects.

(9) Ensure that facility single line diagrams are maintained in a legible condition, kept current, and/or updated during construction, installation, modification, and renovation projects.

(10) Report any electrical incidents or accidents, or near-misses in accordance with accident reporting requirements in FAA Order 3900.19, and report via FAA Form 3900-6, SMS.

(11) Ensure that the EEWP (see Appendix E) is appropriately completed and implemented prior to commencement of energized electrical work.

(12) Plan and/or modify employees' work schedules and tasks to minimize exposure to electrical hazards. Employees must not be permitted within the Limited Approach Boundary (LAB) while recognizably impaired due to illness, fatigue, or other reasons.

m. Second Level Engineering: Power Services Group (PSG)/Safety and Operations Support will:

(1) Ensure new installations and upgrades performed at all facilities are coordinated through ES as well as the TSC and SSC Manager.

(2) Successfully complete the ESQP training course.

(3) Submit engineering packages for installations that will affect existing electrical systems to ES, TSC Manager, SSC Manager, and SECM for review.

(4) Resolve non-compliant electrical safety issues associated with ES projects.

(5) Report all electrical incidents/accidents or near-misses in accordance with FAA Order 3900.19 accident reporting requirements and report via FAA Form 3900-6, SMS.

(6) Ensure AFHA is performed on projects involving installation of new equipment or facilities, where required.

(7) Ensure AFHA is performed during modifications or renovations at operational facilities where required.

(8) Ensure the integration of electrical safety requirements in all planning, design, construction, installation, commissioning, and modification activities.

(9) Ensure the integration of electrical safety requirements in all maintenance activities and documents.

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(10) Ensure that the EEWP (see Appendix E) is completed and implemented prior to commencement of work as appropriate.

(11) Ensure affected engineers/installers have received appropriate electrical systems technical training and electrical safety training on electrical systems they are designing, installing or modifying.

(12) Ensure warning labels are created for arc flash assessments and analyses completed by Second Level Engineering.

n. Employees at the FAA generally fall into the following categories, with the corresponding roles and responsibilities:

(1) Qualified Persons will:

(a) Successfully complete ESQP training and the specific technical training related to the construction and operation of the equipment and/or installations on which he/she will be working.

(b) Successfully complete training in First Aid and approved methods of resuscitation, including CPR and automatic external defibrillator (AED) use.

(c) Conduct a shock hazard analysis to determine the Limited, Restricted, and Prohibited approach boundaries on equipment not appropriately labeled prior to performing electrical work on exposed energized conductors or circuit parts.

(d) Don the appropriate PPE as listed on the warning label. In absence of a label, use NFPA 70E Table 130.7(C)(15)(a) located in Appendix A to determine the appropriate PPE and arc flash boundary.

(e) Develop, or assist in the development and review of, Lockout/Tagout (LOTO) procedures and hazard /risk evaluations.

(f) Assist in development of electrical safety and arc flash hazard surveys/evaluations (such as data collection).

(g) Complete the EEWP in accordance with this Order. (See Appendix D).

(h) Conduct a Job Briefing with all affected employees associated with the task prior to performing any electrical work. (See NFPA 70E 110.3(G)).

(i) Notify their manager whenever electrical safety equipment becomes defective and must be repaired or replaced.

(j) Properly use, maintain and inspect assigned PPE in accordance with this ESP.

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(k) Communicate electrical safety concerns in their respective work area(s) to their manager.

(2) Unqualified Persons will:

(a) Not be within the LAB of exposed energized conductors or circuit parts unless escorted by a Qualified Person.

(b) Communicate electrical safety concerns in their respective work area(s) to their manager.

(c) Follow all caution and safety signs and notifications in their respective work areas.

(3) COTR/Contracting Officer will:

(a) Ensure that the contract explicitly requires contract personnel to comply with applicable requirements of this Order.

(b) Provide technical direction to the contractor, as needed.

(4) Contract Personnel will:

(a) Comply with applicable requirements of this Order.

(b) Provide the required training and PPE to their (contract) employees working in FAA work areas.

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Chapter 2. Electrical Safety Program Requirements

1. Overview. The most effective way to prevent an electrical injury is to establish an electrically safe work condition. This ESP addresses electrical safety requirements for FAA workplaces that are necessary for the practical safeguarding of employees during activities such as, but not limited to, the installation, operation, maintenance, and demolition of electric conductors, electric equipment, signaling and communications conductors and equipment, and raceways. All contract personnel working in FAA work areas must comply with the applicable requirements of this Order. This ESP addresses LOTO concerning establishing an electrically safe work condition. Detailed LOTO requirements are located in FAA Order 3900.19, related Notices, and the Hazardous Energy Control Program.

2. Safe Work Practices.

a. Equipment must be placed in an electrically safe work condition before performing work within the LAB except in the following situations:

(1) Where deenergizing equipment introduces additional hazards or increased risk.

(2) Where performing the work in a deenergized state is infeasible due to equipment design or operational limitations.

(3) Where energized conductors and circuit parts operate at less than 50V.

(4) During testing and/or troubleshooting that requires the equipment to remain energized.

b. Consider all equipment energized until verified to be deenergized and placed in an electrically safe work condition.

c. The qualified person must perform a hazard identification and risk assessment before working on energized equipment. This includes the following:

(1) Determine if work will require contact with energized electrical conductors or circuit parts.

(2) Determine if an EEWP is required. Refer to Chapter 2, Paragraph 3.

(3) Determine if a second person is required. Refer to Appendix H for the Two-Person Rule Decision Tree.

(4) Confirm that PPE is appropriate for the assigned task.

d. Two-Person Requirements. (Refer to Appendix H for the Two-Person Rule Decision Tree).

(1) Two persons are required in the following situations:

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(a) All work requiring an EEWP, including, but not limited to, physical alteration or repair of energized conductors or circuit parts, making or tightening connections, and removing or replacing components.'

(b) Testing, troubleshooting, verifying equipment is in an electrically safe work condition, and voltage measurements conducted on exposed energized conductors or circuit parts:

(i) On three phase power distribution equipment.

(ii) Within the Restricted Approach Boundary (RAB) for other systems. Refer to NFPA 70E Tables 130.4(C)(a) and 130.4(C)(b).

(iii) When working space and clearances do not meet requirements referenced in Chapter 2, Paragraph 8 b. (2).

(iv) At the discretion of the Qualified Person and his or her manager, where additional hazards not covered within sections (A) or (B) are present.

(2) The second person must have the following qualifications:

(a) Certified in First Aid and approved methods of resuscitation, including CPR and AED use.

(b) Completed ESQP training.

(3) The second person is not required to have skills and knowledge on any specific equipment.

(4) The second person must remain attentive to the work being performed and is prohibited from work duties that would restrict his/her ability to sound an alarm and/or render aid.

(5) If the second person is within the LAB, the Qualified Person informs the second person of the possible hazards specific to that equipment.

e. Hierarchy of Controls. The hierarchy of controls illustrates the priority for addressing electrical hazards.

(1) Engineering Controls. Accomplished by reducing exposure to the hazard by using remote test points, bypass switches, or other means.

(2) Isolate the Hazard. If the exposure to the hazard cannot be reduced through design or engineering controls, establish an electrically safe work condition prior to performing work activities.

(3) Administrative Controls. Modify workers' work schedules and tasks in ways that minimize their exposure to electrical hazards.

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f. Protective Measures for Existing Non-Compliant Clearance Issues. When there is insufficient work space around energized electrical equipment IAW OSHA 1910 Subpart S, and it is not feasible to place the equipment in an electrically safe work condition, the following protective measures must be implemented as applicable:

(1) Complete an EEWP if required.

(2) Place signs and barricades around the work area. Refer to Chapter 2, Paragraph 2. k.

for additional information on signs and barricades.

(3) Restrict employee access to prevent interference with the worker.

(4) Place insulating blanket over the conductive parts of the obstruction (equipment rack, switchgear, etc.) where the worker may accidentally make contact.

(5) Ensure no conductive equipment is near the work area that may potentially contact the worker or the equipment.

g. Shock Hazard. A Shock Hazard is a dangerous condition associated with the possible release of energy caused by contact or approach to energized electrical conductors or circuit parts.

(1) A shock hazard analysis determines the hazardous voltage, boundary requirements, and PPE necessary to minimize the possibility of electric shock to personnel.

(2) The Limited, Restricted, and Prohibited approach boundaries will be determined by a Qualified Person prior to starting work.

(3) Approach boundaries must be determined using the NFPA 70E Table 130.4(C)(a) and 130.4(C)(b).

(a) LAB.

(i) Only Qualified Persons may enter the LAB when electric conductors and equipment involved are not in an electrically safe work condition.

(ii) If an Unqualified Person(s) needs to cross the LAB for the purpose of On-the-Job-Training, a Qualified Person must advise him/her of the possible hazards and escort the Unqualified Person(s) while inside the LAB.

(b) RAB. Unqualified Persons are prohibited from crossing the RAB.

(c) Qualified Persons must not approach or take any conductive object closer to exposed energized electrical conductors or circuit parts operating at 50 volts or more than the RAB unless the Qualified Person is isolated, insulated, or guarded from energized electrical conductors and no un-insulated part of the Qualified Person's body crosses the Prohibited Approach Boundary (PAB).

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PAB.

(d) PAB. Only a Qualified Person with the appropriate PPE is allowed inside the

h. Arc Flash.

(1) Arc flash hazards relate to the thermal effects of electricity when the electrical current sustains a short circuit between the energized buses of electrical equipment or between an energized part and ground potential. The associated bright light, heating and decomposition of metals produce enough heat to cause serious bums to human skin. Arc-rated (AR) clothing is designed to protect the worker from the thermal energy hazards associated with the arc flash event.

(2) Arc blast hazards address the mechanical forces associated with an arcing fault. The explosive reaction near the arc can cause parts of the electrical equipment to move rapidly away from the arc in all directions. AR clothing may not protect the worker from the physical effects of the arc blast event.

(3) Arc Flash Exposure.

(a) An arc flash may be caused by, but not limited to:

(i) Human error/unsafe work practices.

(ii) Contact with energized parts.

(iii) Short circuit current capacity exceeding electrical equipment rating.

(iv) Dropped tools/hardware across energized parts.

(v) Incorrect wiring practices.

(vi) Contamination, such as dust on insulating surfaces.

(vii) Corrosion of equipment parts and contacts.

(viii) Removal/Installation of equipment covers (i.e., dead front covers on panelboards).

(ix) Failure of internal or external mechanical parts and hardware, which can then contact energized components.

(b) A worker must wear AR PPE prior to crossing the arc flash boundary to perform a variety of tasks including but not limited to verifying equipment is deenergized, measuring voltage, removing covers from a power distribution panel or performing energized work.

(4) AFHA Requirements.

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(a) The AFHA must determine the arc flash boundary, the incident energy at a specified working distance, and the personal protective equipment for the Qualified Person working within the arc flash boundary.

(b) The AFHA must be performed prior to installation of new facilities or when a major modification occurs at existing facilities. The AFHA must be reviewed periodically, not to exceed 5 years.

(c) Each AFHA must comply with this Order and FAA Order 6950.27, Short Circuit Analysis and Protective Device Coordination Study.

(d) The AFHA must take into consideration the design of the overcurrent device, its clearing time and the condition of maintenance.

(e) The arc flash boundary and PPE requirements may be determined using NFPA 70E Table 130.7(C)(15)(a) located in Appendix A until such time as the results of an AFHA are available.

(i) The maximum short circuit current and clearing time parameters in NFPA 70E Table 130.7(C)(15)(a) are assumed to be met for equipment downstream of the service entrance.

This assumption is based on arc flash calculations performed on several types of FAA equipment and generic infinite bus calculations using voltage levels, transformer sizes, and protective device types common in the FAA. Supporting documentation is provided in Appendix J.

(ii) For any transformer size (kVA) larger than indicated in Appendix J at the respective voltage, contact a qualified engineer to perform an assessment or AFHA. For example, a 225kVA transformer at 208V would require further evaluation by a qualified engineer.

(iii) For any transformer with an impedance less than the 1.7% indicated in Appendix J, contact a qualified engineer to perform an assessment or AFHA.

(iv) For service entrance equipment, use NFPA 70E Table 130.7(C)(15)(a) to determine PPE only for operating a breaker with covers on or, opening a hinged cover to perform a visual inspection. All other tasks on service entrance equipment require establishing an electrically safe work condition if AFHA or assessment results are not available.

(v) Tasks not listed in NFPA 70E Table 130.7(C)(15)(a) require an assessment or AFHA as determined by a qualified engineer.

(vi) PPE categories are identified in NFPA 70E Table 130.7(C)(16).

(f) Guidance on generic warning labels for selected systems is located in the AFHA Flowchart in Appendix F. Sample generic labels are located in Appendix G.

(g) Requirements for single-phase and three-phase systems may be determined using the AFHA Flowchart in Appendix F.

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(h) Requirements for DC systems may be determined using the AFHA Flowchart in Appendix F.

(i) PPE for DC systems <100V is defined as PPE Category 0.

(ii) PPE for DC systems >100V must be determined by a qualified engineer.

(5) AFHA Labeling Requirements.

(a) As stated in the National Electrical Code (NEC) and NFPA 70E 130.5(C), electrical equipment, such as switchboards, panelboards, industrial control panels, transformers, disconnect switches, and motor control centers that are in other than dwelling units and are likely to require examination, adjustment, servicing, or maintenance while energized must be field marked to warn qualified persons of potential electric arc flash hazards. The marking must be located to be clearly visible to qualified persons before examination, adjustment, servicing, or maintenance of the equipment.

(b) Following the completion of the AFHA and shock hazard analysis, label the panelboards, switchgear, and electrical equipment as shown in Figure 2-1. The label must include the following information from the AFHA as a minimum:

(i) Arc Flash Boundary.

(ii) Incident Energy in calories per square centimeter (cal/cm2) at appropriate working distances.

(iii) PPE Category.

(iv) Nominal System Voltage.

(v) Class of Voltage Rated Gloves.

(vi) LAB in feet/inches.

(vii) RAB in feet/inches.

(viii) PAB in feet/inches.

(ix) Equipment Name.

(x) Date of Survey.

(c) Label Specifications.

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(i) The label must be of the appropriate size for the equipment while remaining legible.

(ii) Warning label header for PPE Categories 0 -4 must be orange with black lettering.

(iii) Danger label headers for hazards above PPE Category 4 must be red with white lettering to conform to OSHA recommendations.

(iv) Arc flash warning labels placed on equipment cabinets, other than switchgear, power panels or motor control centers, are applicable to the operation and/or maintenance of the power source disconnects (e.g. rack/cabinet circuit breakers) ONLY, and not to the maintenance of the electronic equipment/system.

(d) Generic Labels.

(i) Generic labels were developed using conservative methods, specifically for FAA equipment, excluding service entrance equipment. See Appendix G.

(ii) Contact ES, PSG, or EOSH Services for the specific required generic label(s).

(e) Generic Label Application. Generic labels may be used when an AFHA or an arc flash assessment has not been performed on any of the following equipment:

(i) DC systems <100V.

(ii) Single-phase systems.

(iii) Three-phase systems operating at less than 240V and fed by a single transformer rated less than 125kVA.

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Figure 2-1. Label Example

ETM^I

: t.m-1!- IKSS'^I ri?BJ*Bg'Ml pJV-,^*-- , ,-d*i-r - * . . - >-.

Category 2 55 inches

7.4 cal/cm2

480 VAC

42 inches 12 inches 01 inches

PPE Category Arc Flash Boundary Arc Flash Hazard at 18 inches Shock Hazard Glove Class Limited Approach Restricted Approach Prohibited Approach

Equipment ID: MDP-1 Performed by EOSH Services: 12/15/2011

i. Infrared Inspection. Wear the proper PPE when performing Infrared Thermography in accordance with NFPA 70E Table 130.7(C)(15)(a) located in Appendix A or the warning label.

j . Work Positioning Considerations.

(1) Use the non-dominant hand to engage disconnect switches to the on or off position.

(2) Stand to the side of the electrical source while activating switches to reduce exposure of body to the electrical hazard.

(3) Turn head away from the equipment while operating switch/circuit breaker.

(4) Use the enclosure doors and components as barriers as much as possible.

Illumination. Adequate illumination and an unobstructed view of the work to be performed, as determined by the Qualified Person, are required prior to employees entering a work area containing energized electrical conductors or circuit parts.

k. Signs and Barricades.

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(1) Use safety signs, safety symbols, etc., where necessary to warn employees of potential electrical hazards. (See NFPA 70E 130.7(E) and ANSI Z535.2).

(2) Use barricades in conjunction with safety signs where it is necessary to prevent or limit employee access to work areas. Do not use conductive barricades where it might cause an electrical hazard.

(a) The barricades must be located no closer than the LAB to the energized electrical conductors) or circuit part(s).

(b) If a Qualified Person determines that signs or barricades do not provide sufficient warning and protection from electrical hazards, an attendant must be stationed for the sole purpose to warn and protect employees.

3. Energized Electrical Work Permit. See Appendices D and E.

a. Energized work is not permitted, unless deenergizing (the equipment) introduces additional or increased hazards or is infeasible due to equipment design or operational limitations.

b. An EEWP is required when working on energized electrical conductors or circuit parts.

c. If the work task requires a worker to remove, change, or add any electrical component, the work task is not diagnostic in nature and an EEWP is required.

d. The manager cannot approve the EEWP if the Qualified Person determines that he/she cannot perform the energized work safely.

A blank EEWP is available at:

https://employees.faa. go v/org/lmebusm^ vices/osh/es/regulation/

f. An EEWP is not required in the following situations:

(1) Performing lockout/tagout and verifying the system is deenergized.

(2) Low Voltage - An EEWP is not required for work at less than 50 volts to ground, unless a Qualified Person determines there is increased exposure to electrical burns or to explosion due to electric arcs.

(3) Testing, Troubleshooting, Voltage Measurement - A Qualified Person may perform diagnostics on energized electrical conductors or circuit parts related to testing, troubleshooting, and voltage measuring within the LAB, RAB, and PAB, provided electrical safe work practices and PPE are used.

(4) Performing visual inspection within the LAB, provided the RAB and PAB will not be crossed.

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g. Use Qualified Personnel and Obtain Management Approval - A Qualified Person must make the decision to work energized on a case-by-case basis with management approval. By signing the permit approving energized work by the Qualified Person, the manager acknowledges the associated risks of the energized work. Energized electrical work may only proceed after approval of the FAA EEWP.

4. Training Requirements.

a. The National EOSH Training Standards for the Electrical Safety courses are available at the web link: http://eoshtnat.faa.gov/Library/index.cfm?Action=. Refer to Table 2-1 for training requirements.

b. The training curriculum must comply with the current National EOSH Training Standards.

Employees who received ESQP training prior to 2009 must attend current ESQP training (e.g., minimum 16-hour) as soon as practical.

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Table 2-1. Electrical Safety Training Requirements

CATEGORY DUTIES PREREQUISITES &

REFRESHER TRAINING

Electrical Safety Qualified Person (ESQP) -Employees and managers of employees working on exposed energized conductors or circuit parts operating at 50V or greater or who must verify equipment is deenergized. ESQP training alone does not qualify the employee to work on specific equipment.

Perform work on energized electrical conductors or circuit parts requiring an

EEWP.

Perform any electrical work within the restricted approach boundary as defined by NFPA 70E Performs work on high voltage transformers and capacitors

• First Aid/CPR (including AED) training

• Refresher training required every 3 years

• Refresher training required for employees who fail to demonstrate adequate skill, and knowledge

Electrical Safety Unqualified Person -Employees who have no requirement to work on energized electrical equipment or who may be exposed to electrical hazards as a work task is performed nearby.

Air Traffic Controllers, Administrative Staff, Cleaning Service Personnel, Office Personnel, and employees trained in crafts other than electrical.

None

Electrical Safety-Electric Power Generation, Transmission, and Distribution

- Employees who perform operation and maintenance of electric power generation, control, transformation, and distribution lines and equipment

Perform work on facilities with power generation capabilities (does not include emergency and standby power) or on installations that distribute power to 2 or more separate buildings or equivalent facilities which extend to the service point for each building or equivalent facility served for the purposes of:

a) Work on energized electrical conductors or circuit parts requiring an

EEWP

b) Electrical work within the LAB and

RAB.

c) Work on transformers stepping up or stepping down power from the commercial meter point.

• First Aid/CPR (including AED) Training

• Electrical Safety-Qualified Person

• Refresher training required every 3 years

• Refresher training required for employees who fail to demonstrate adequate skill, and knowledge

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5. Personal Protective Equipment (PPE).

a. Hand Protection.

(1) General Requirements and Use.

(a) Rubber insulating gloves must be worn where there is a potential electric shock hazard (i.e., greater than 50 volts).

(b) Wear heavy-duty leather gloves over rubber insulating gloves where required for arc flash or shock protection.

(c) Heavy-duty leather gloves may be removed only for voltage levels belowv250 V when increased dexterity for manipulating small parts is required.

(d) Rubber insulating gloves used without protectors must not be used with protectors until physically inspected and electrically retested by a North American Independent Laboratories (NAIL).

(e) Wear appropriately rated gloves for the voltage present. Refer to Table 2-2 for glove class and the associated voltages.

(f) Rubber insulating sleeves must be used to protect the upper arm when there is a potential to contact energized electrical conductors or circuit parts when reaching inside an enclosure (e.g., battery racks).

(2) Selection. Select gloves and sleeves based on the physical and electrical insulating properties.

(3) Testing Requirements. Front line managers must ensure a testing procedure/system is established to include the following:

(a) Using an approved testing laboratory to test the gloves and sleeves in accordance with the requirements of ASTM F496. The laboratory used for testing must be NAIL-accredited.

(b) Including a specific test or retest date recorded in documentation or marked on the glove or sleeve.

(c) Testing insulating gloves within 6 months of most recent test date.

(d) Testing sleeves within 12 months of most recent test date.

(e) Establishing disposition procedures for rubber insulating materials that fail inspection or electrical testing.

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(4) Inspection and Maintenance.

(a) Prior to each use, insulating gloves must be air-tested by using a glove inflator or folding the cuff down several times to trap air and create a slight positive pressure inside the glove to test for any air leakage.

(b) Gloves must be thoroughly examined inside and out for cracks, cuts, tears, foreign debris or any products that could breach the integrity of the rubber.

(c) Gloves must be stored with the fingers up in the canvas storage bag to prevent debris from entering the open cuff. Do not fold gloves.

(d) Gloves that do not pass inspection must be properly disposed of and replaced.

(e) Rubber insulating equipment must be stored in a location as cool, dark, and dry as practical and free from ozone, chemicals, oils, solvents, damaging vapors and fumes, and away from electrical discharges and sunlight. Field storage must be in a bag, box, container, or compartment designed for the equipment.

(f) Clean the equipment in accordance with manufacturer's instructions.

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Table 2-2. Glove Class Maximum Use Voltage

Maximum Use Voltage

AC

1,000

7,500

17,000

26,500

36,000

DC

1,500

11,250

25,500

39,750

54,000

Selection

Class 00 Glove/Sleeve (beige label)

Class 0 Glove/Sleeve (red label)

Class 1 Glove/Sleeve (white label)

Class 2 Glove/Sleeve (yellow label)

Class 3 Glove/Sleeve (green label)

Class 4 Glove/Sleeve (orange label)

b. Head Protection.

(1) General Requirements and Use.

(a) Head protection must meet American National Standards Institute (ANSI) Z89.1, Requirements for Protective Headwear for Industrial Workers.

(b) Use Class G hardhats for electrical hazards up to 2,200V and Class E hardhats for electrical hazards up to 20,000V. Do not use a Class C hardhat for electrical work.

(c) A balaclava is required under the face shield when working in a PPE Category 2 environment, unless a flash suit hood is used.

(2) Inspection and Maintenance.

(a) Clean and inspect hardhats to each use. If visibly damaged, remove the hat from service.

(b) Visually inspect the inner lining and shell suspension for missing or worn parts prior to each use.

c. Face Protection.

(1) General Requirements and Use.

(a) Face shields must be nonconductive, non-melting and protect the face, ears, neck, and chin and have an arc rating suitable for the arc flash exposure.

(b) Do not wear face shields without an arc flash rating or those made from acetate or other similar melting materials where an arc flash exposure exists.

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(c) Face shields must meet ANSI 87.1 and ASTM F2178.

(d) Additional lighting may be required in the work area, as some shields may reduce visibility.

(2) Inspection and Maintenance.

(a) Inspect face shields for cracks, chips, or signs of damage prior to each use.

(b) If any defects are noted, remove the shield from service.

d. Eye Protection.

(1) General Requirements and Use.

(a) Always wear non-conductive eye protection (safety glasses or goggles) for any PPE Category, including whenever a face shield or flash suit hood is required.

(b) Safety glasses/safety goggles must meet ANSI Z87.1, American National Standard for Occupational and Educational Personal Eye and Face Protection.

(c) Over-the-lens safety glasses may be worn over prescription eyeglasses.

(2) Inspection and Maintenance.

(a) Inspect safety glasses/safety goggles prior to each use.

(b) If visibly damaged, or if scratches to viewing surface impair vision, remove the glasses from service and replace.

e. Hearing Protection. General Requirements and Use.

(1) Wear ear canal inserts for all PPE Categories.

(2) Do not wear earmuffs when a potential arc flash exposure is present.

f. Foot Protection.

(1) Leather work shoes must be wom when performing work on equipment classified as PPE Category 1 through 4.

(2) Dielectric overshoes are required for insulated footwear used as protection against step and touch potential. The overshoes must meet the requirements of ASTM Fl 116 and Fl 117.

g. AR Clothing.

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(1) General Requirements. Employees must wear all applicable PPE and AR clothing whenever there is the possibility of exposure to an arc flash.

(2) Limitations. Meltable fibers such as acetate, nylon, polyester, polypropylene, and spandex are not permitted in fabric under layers (undergarments) next to the skin; however, the elastic used on non-melting fabric undergarments or socks is permitted.

(3) AR Clothing Selection. Select clothing based on the maximum arc flash exposure hazard for the specific task. Clothing must be marked to indicate compliance with ASTM F1506.

(4) Specific clothing requirements for each PPE Category are located in NFPA 70E Table 130.7(C)(16) and Appendix I.

(5) Inspection and Maintenance.

(a) Inspect AR clothing for tears, fraying, missing closures, and significant wear prior to each use.

(b) Laundering. Follow manufacturer's recommended cleaning, maintenance, and care instructions to maintain AR integrity.

h. Insulating Blankets.

(1) General Requirements and Use.

(a) Use blankets to provide an insulated boundary between the worker and energized parts where there is a risk of contacting energized parts as determined by the Qualified Person.

(b) Blankets must meet ASTM D1048.

(c) The service and care of insulating blankets must meet ASTM F479, Standard Specification for In-Service Care of Insulating Blankets.

(d) Test insulating blankets by an approved laboratory every 12 months.

(2) Inspection and Maintenance.

(a) Visually inspect for defects before use and as needed if there is cause to suspect any damage.

(b) Place the blanket on a flat surface; roll the blanket from one corner towards the opposite and check for cracks, nicks, holes, etc., in the rubber. Next, turn the blanket over and repeat the procedure.

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(c) Store rubber insulating blankets in a location as cool, dark, and dry as practical.

Ensure the storage location is free as possible from ozone, chemicals, oils, solvents, damaging vapors and fumes, and away from electrical discharges and sunlight. Field storage must be in a bag, box, container, or compartment designed for the blanket.

(d) Clean the equipment in accordance with manufacturer's instructions.

i. Insulating Mats. General Requirements and Use.

(1) The Qualified Person must determine the use of insulating mats.

(2) Do not use mats as primary protection from electric shock.

(3) Mats must meet ASTM D178, Standard Specification for Rubber Insulating Matting, for material design specifications.

(4) Maintain mats in a safe, reliable condition.

(5) Visually inspect mats before each use, or at least annually, for signs of damage or wear.

(6) Testing is not required, but insulating mats must be replaced every three years, or sooner, if needed.

6. Insulated, Insulating, and Voltage Rated Tools. Employees must use insulated and/or insulating tools when working inside the LAB of exposed energized electrical conductors or circuit parts.

Wrapping electrical tape or other materials around tool handles, jewelry or belt buckles DOES NOT provide shock protection and is prohibited.

a. Static Discharge Sticks.

(1) General Requirements and Use.

(a) Static discharge sticks are designed to safely remove the static charge after the equipment is deenergized. These are used on capacitor banks and other devices that can store energy.

(b) Use static discharge sticks in accordance with manufacturer's instructions.

(c) Do not use static discharge sticks on live equipment.

(d) Wear appropriate PPE while using static discharge sticks.

(e) A Qualified Person must select static discharge sticks that meet ASTM F711 and are marked as such.

(2) Inspection and Maintenance.

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(a) Static discharge sticks must be marked with manufacturer's name, month, and year of manufacture.

(b) Clean each tool before and after each use.

(c) Visually inspect each tool before each use or at least annually.

(d) Remove the tool from service if visibly damaged.

(e) These devices do not require further dielectric (lab) testing because they function as devices to provide a safe ground potential when used in accordance with instructions.

b. Safety Grounding Equipment.

(1) General Requirements and Use.

(a) Use safety grounding equipment only on deenergized electrical equipment and power lines.

(b) Safety grounding equipment is used to provide personal protection in the event of induced voltages and unintentional line energization.

(c) Safety grounding equipment and grounding jumpers must be capable of conducting the maximum fault current at the point of grounding for the entire time it takes to clear the fault. Only electrical engineering personnel may select safety grounding equipment.

(d) Safety grounding equipment, which includes the clamp, ferrule, and cable, must meet ASTM F855 and ASTM F2249.

(e) Wear the appropriate PPE when using safety grounding equipment.

(2) Inspection and Maintenance.

(a) Visually inspect safety grounding equipment before each use and at least annually.

(b) If visibly damaged, remove the equipment from service.

c. Live Line Tools (Hot Sticks).

(1) General Requirements and Use.

(a) Live line tools allow workers to manipulate energized conductors and equipment (e.g., fused disconnects) from a safe distance.

(b) Wear the appropriate PPE while using live line tools.

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(c) Live line tools must be selected by a Qualified Person to maintain the minimum approach distance (based on voltage) and meet ASTM F711.

(d) Use live line tools in accordance with manufacturer's instructions.

(2) Inspection and Maintenance.

(a) Clean each tool visually inspect before each use.

(b) If visibly damaged, remove the tool from service.

(3) Testing.

(a) Electrically test live line tools every 2 years or more frequently if suggested by the manufacturer.

(b) Test laboratories used for live line tools must meet the requirements of the

ASTMF711.

(c) Test laboratories must be Nationally Recognized Testing Laboratory (NRTL) accredited.

(d) Testing must include a stamp, label, or other marking on the unit with accompanying documentation of results. Maintain the results for the life of the unit.

(e) Live line tools must also be marked with the test date.

d. Power Tools, Hand Tools, and Portable Electrical Equipment.

(1) General Requirements and Use.

(a) Power and hand tools and portable electrical equipment must be…