TITLE:	ES&H Manual
DOCUMENT ID:	6200 Appendix T5 Electrical Hazard Labeling

1.0 Purpose

Jefferson Lab recognizes that switchboards, panelboards, industrial control panels, and motor control centers may require examination, adjustment, servicing, or maintenance while energized. To ensure the safety of qualified workers authorized to perform such activities, these items are labeled to warn of their potential shock and electric arc flash hazards. This appendix provides the process steps for identifying equipment which needs labeling; clarifies Jefferson Lab’s labeling requirements; and gives examples of the most common labels recommended for use.

This program satisfies applicable federal, state, and local requirements as outlined in ES&H Manual Chapter 2410 Appendix T1 Hazard Issues List.

2.0 Scope

Jefferson Lab applies the following considerations to determine its electrical hazard labeling requirements:

· NFPA-70E – considers all potentials >50VDC to constitute a shock hazard.

· NFPA-70E – considers all circuits capable of producing an arc flash of incident energy > 1.2 cal/cm2 at normal working distance to constitute an arc flash hazard requiring Personal Protective Equipment (PPE).

The Jefferson Lab Electrical Safety Committee has specifically exempted equipment with a cord and disconnectable plug from these labeling requirements.

The process steps for this procedure are performed in coordination with ES&H Manual Chapter 6200 Jefferson Lab’s Electrical Safety Program.

3.0 Responsibilities

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

3.1 Anyone at Jefferson Lab

· Request an electrical hazard evaluation for a switchboards, panelboards, industrial control panels, or motor control centers, as necessary.

· Request update, repair, or maintenance to an electrical hazard label when necessary.

3.2 Supervisor/Subcontracting Officer’s Technical Representative (SOTR)/Sponsor

· Ensure that warning labels are posted in accordance with the hazard issue.

3.3 Electrical Safety Engineer

· Provide electrical safety hazard analyses, equipment inspections, installation inspections, and equipment arc flash calculations.

4.0 Process Steps

Responsibilities for each process step are outlined within the procedure.

The primary consideration for deciding whether a label is needed is: “whether a label would sufficiently warn someone, unfamiliar with the equipment, of the recognized electrical hazard(s) and the action(s) needed to avoid it (them)?”

4.1 Electrical Hazard Evaluation

Anyone at Jefferson Lab may request an electrical hazard evaluation for a switchboards, panelboards, industrial control panels, or motor control centers.

Step 1 Contact the Electrical Safety Engineer and provide the location of the electrical hazard/equipment needing review.

o If it is determined that the equipment requires a hazard label the Electrical Safety Engineer will proceed with this activity.

o If no hazard is found – the Electrical Safety Engineer will inform the concerned party(s) of the determination.

4.2 Update, Repair, or Maintenance of Label

Anyone at Jefferson Lab may request update, repair, or maintenance to an electrical hazard label.

Step 1 Contact the Electrical Safety Engineer and provide the location of the electrical hazard/equipment needing review.

o If it is determined that the label is defective the Electrical Safety Engineer will rectify the situation.

o If no hazard is found – the Electrical Safety Engineer will inform the concerned party(s) of the determination.

4.3 Types of Labels

The following are the two most common examples found at Jefferson Lab:

4.3.1 The National Electrical Code (NEC) Code & National Fire Protection Association (NFPA) – 70E Standard required “Hazard Warning” label:

4.3.2 Hazard Identification Labels:

This label’s information includes shock boundary distances, arc flash boundary distances, and required PPE. If a hazard analysis label is not present, and work is to be performed on the equipment, then refer to ES&H Manual Chapter 6200 Appendix T3 Electrical Personal Protective Equipment (PPE) Selection Procedure for further guidance.

5.0 Revision Summary

Revision 1.2 – 01/30/13 – Added video link to Electrical Hazard Identification Label.

Revision 1.1 – 12/10/12 – Added sample “Caution” Label.

Revision 1.0 – 05/10/12 – Updated to reflect current laboratory operations.

ISSUING AUTHORITY	TECHNICAL POINT-OF-CONTACT	APPROVAL DATE	REVIEW REQUIRED DATE	REV.
ESH&Q Division	Todd Kujawa	05/10/10	05/10/13	1.2

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 5/8/2013.