TITLE:

ES&H Manual

 

DOCUMENT ID:

6200 Appendix T2

Electrical Personal Protective Equipment (PPE) Selection Procedure

 

 

1.0            Purpose

 

Jefferson Lab requires the use of appropriate electrical protective equipment to protect the worker from harm while work is being performed. This procedure complies with the requirements of NFPA 70E – Standard for Electrical Safety in the Workplace regarding personal protective equipment (PPE) requirements for when work is performed within a shock and/or an arc flash protection boundary.

 

2.0            Scope

 

This document provides guidance to ensure that the appropriate electrical PPE, for the assigned task, is selected and used while performing electrical work. 

 

PPE is the last line of defense in protecting from an electrical hazard before an incident happens and therefore ranks as the lowest level of control for reducing the risk. The most effective way to reduce the risk associated with an electrical hazard is elimination (working on de-energized systems).

 

3.0            Responsibilities

NOTE:     Management authority may be delegated at the discretion of the responsible manager.

 

3.1              Everyone at Jefferson

·         Be aware of the electrical hazards in your workplace.

 

3.2              Qualified Individuals

·         Be aware of shock approach and/or arc flash protection boundaries.

 

3.3              Facilities Management Electrical Engineer

·         Provide equipment specific arc flash labels marked with the available incident energy and/or required PPE level, shock approach boundaries, arc flash boundary, and the voltage level present.

 

3.4              Electrical Safety Engineer (ESE)

·         Provide an electrical PPE evaluation, upon request, for shock and arc flash hazards.

·         Provide electrical safety hazard analyses for equipment upon request.

·         Administer the lab-wide electrical rated glove change out every six months.

 

4.0            Process Steps

 

Follow the process steps outlined below to determine the appropriate electrical PPE to be worn in a shock approach or arc flash protection boundary (see also Figure 1).

 

Step 1:             Determine the task to be performed and the specific equipment to be worked on (different PPE levels may be required for different tasks on the same piece of equipment).

 

Step 2:             Read and follow the equipment specific arc flash label on the equipment to be worked on, and go to Step 9. (If the equipment does not have a label, go to Step 3.)

 

Step 3:             Find the first upstream over-current protective device that is providing power to the equipment to be worked on.

 

Step 4:             Read and follow the equipment specific arc flash label on the device, and go to Step 9. (If this equipment does not have a label or if a transformer is encountered first, go to Step 5.)

 

Alternate Step 4:               Contact ESE for a field evaluation.

 

Step 5:             Determine the Approach Boundaries for Shock Protection. Refer to table 130.4(C)(a) & (b), of NFPA 70E (2012), for the approach boundaries to energized electrical conductors or circuit parts for shock protection.

 

Step 6:             Determine the Approach Boundary for Arc Flash Protection.

·         For systems less than 600 VAC use an Arc Flash Boundary of four feet.

For systems greater than 600 VAC an Arc Flash Boundary must be calculated.

Step 7:             Determine the hazard/risk category of the work task being performed.  Refer to table 130.7(C)(15)(a) & (b), of NFPA 70E (2012).

 

Step 8:             Determine the appropriate protective clothing and personal PPE required to be used while performing the work task. Refer to table 130.7(C)(16), of NFPA 70E (2012).

 

Step 9:             Don and use appropriate PPE.

 

NOTE: PPE is the last line of defense in protecting an employee from an electrical hazard before an incident happens. The potential electrical hazards are electrical shock, arc flash, arc blast, and burns from hot electrical equipment. Electrical PPE does not protect against arc blast and thermal burn hazards.

 

 

Figure 1 - Process for Selecting Electrical PPE

 

5.0            References

 

·         Standards for Electrical Safety in the Workplace, NFPA-70E (2004 edition)

 

6.0            Revision Summary

 

Revision 0.3 – 11/03/14 – Edits per T.Kujawa. No substantive changes.

Revision 0.2 – 11/14/13 – Changed review required date from 07/31/16 to coincide with review date of main chapter.

Revision 0.1 – 07/31/13 – Periodic Review – Clarified purpose, scope, responsibilities, and process steps; added new responsibility for Facilities Management Electrical Engineer; updated references; added note and revision summary.

Revision 0.0 – 10/01/09 – New content written to reflect current laboratory operations.

 

 

ISSUING AUTHORITY

TECHNICAL POINT-OF-CONTACT

APPROVAL DATE

REVIEW DATE

REV.

 

 

ESH&Q Division

Todd Kujawa

10/01/09

10/31/16

0.3

 

This document is controlled as an on line file.  It may be printed but the print copy is not a controlled document.  It is the user’s responsibility

to ensure that the document is the same revision as the current on line file.  This copy was printed on 11/4/2014.