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Electrical Protect Color Electrical Protective Devices SPP# 1910.137
Quick Reference
1.0 Purpose ..........................................................................................................................1
2.0 Scope and Applicability................................................................................................1
3.0
References
.....................................................................................................................2
4.0
Policy
..............................................................................................................................2
5.0
General Responsibilities
...............................................................................................2
6.0
Procedure
.......................................................................................................................2
6.1
Definitions
.........................................................................................................2
6.2
General Provisions
...........................................................................................3
6.2.1
Training
..............................................................................................3
6.2.2
Use of Rubber Insulating Gloves
....................................................3
6.2.3
Testing of Rubber Insulating Gloves
..............................................4
6.2.4
Use of Rubber Matting
......................................................................4
6.2.5
Rubber Matting Replacement
..........................................................4
6.3
Specific Responsibilities
.................................................................................4
6.3.1
Managers/Unit Heads
.......................................................................4
6.3.2
Supervisors
.......................................................................................5
6.3.3
Employees
.........................................................................................5
1.0 Purpose
The purpose of this safety policy and procedure is to establish the guidelines for the
use of Electrical Protective Devices within North Carolina Department of
Transportation (NCDOT).
2.0 Scope and Applicability
Selected NCDOT employees work around electrical energy in the performance of
their jobs. Electrical Protective Devices are a special class of Personal Protective
Equipment (PPE). This special class of PPE provides a nonconductive barrier for
employees who work near and around hazardous electrical energy sources.
This safety policy and procedure includes provisions for training, discussion on the
importance of using and testing rubber insulating gloves, requirements on rubber
matting, and conditions for rubber matting replacement.
This document also details the areas of responsibility for managers/unit heads,
supervisors, employees, and Safety and Loss Control within NCDOT.
This safety policy and procedure affects all Traffic Services Technicians, Bridge
Maintenance, and Electrical employees who as a result of their job duties work on
energized equipment. In addition, it covers employees who could possibly be
exposed to energized equipment.
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3.0 Reference
This safety policy and procedure is established in accordance with Occupational
Safety and Health Standards for General Industry (29 CFR 1910.137).
4.0 Policy
It is the policy of NCDOT to provide a place of employment free from recognized
hazards that cause or are likely to cause death or serious physical harm to employees
or the public. Therefore, work will not be performed around hazardous electrical
energy sources without the proper electrical protective devices. When energy
hazards exist that cannot be eliminated, then engineering practices, administrative
practices, safe work practices, Personal Protective Equipment (PPE), and proper
training regarding Electrical Protective Wear will be implemented. These measures
will be implemented to minimize those hazards to ensure the safety of employees and
the public.
5.0 General Responsibilities
It is the responsibility of each manager/unit head, supervisor, and employee to ensure
implementation of NCDOTs safety policy and procedure on Electrical Protective
Devices. It is also the responsibility of each NCDOT employee to report
immediately any unsafe act or condition to his or her supervisor. Specific
responsibilities are found in Section 6.3.
6.0 Procedure
This section provides applicable definitions, establishes general provisions, and
identifies specific responsibilities required by NCDOT's safety policy and procedure
on Electrical Protective Devices.
6.1 Definitions
Breakdown
The electrical discharge or arc occurring between the electrodes and through the
equipment being tested.
Electrical Devices
Any equipment or device that is charged or operated by electrical current and has the
potential for release of energy while repairs or maintenance are being performed.
2 Electrical Protective Devices
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The electrical discharge or arc occurring between electrodes and over or around, but
not through, the equipment being tested.
Ozone
A very active form of oxygen which may be produced by corona, arcing, or
ultraviolet rays.
Personal Protective Equipment (PPE)
In reference to this policy, PPE will include isolation equipment such as insulating
rubber gloves and insulating rubber matting.
Rubber
A generic term that includes elastomers and elastomeric compounds, regardless of
origin.
Voltage, Maximum Use
The AC voltage rating of the protective equipment that designates the maximum
nominal design voltage of the energized system that may be safely worked.
6.2 General Provisions
This section details the provisions of this safety policy and procedure with each
provision discussed in a separate subsection. These provisions are: Training Use of Rubber Insulating Gloves Testing of Rubber Insulating Gloves Use of Rubber Matting Rubber Matting Replacement
6.2.1 Training
Employees who work around hazardous electrical energy shall be trained in: Hazards associated with electrical energy Use of electrical protective equipment Limitations of electrical protective equipment
6.2.2 Use of Rubber Insulating Gloves
Two types of rubber insulating gloves will be used by NCDOT as a portable
device for protecting employees from contact with live electrical conductors:
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R O C E D U R E Low voltage, Type I (being non-resistant to ozone breakdown),
Class 0 (capable of withstanding 5,000 volts) High voltage, Type I (being non-resistant to ozone breakdown),
Class 1 (capable of withstanding 10,000 volts)
Insulating rubber gloves are required to prevent employee electrocution from
accidental contact with energized equipment. (Traffic Signal Technicians are
not required to wear rubber gloves when servicing single phase, 120 volt
source traffic signal cabinets.) They shall not be used as primary protection.
Primary protection measures include grounding and deactivation. Rubber
gloves must be visually inspected prior to each use to verify integrity and
electrical continuity tests. Each glove must be conspicuously marked with
last test date and expiration date.
In addition to rubber gloves, leather gloves will be worn over rubber gloves to
ensure they are not punctured or damaged during their use.
6.2.3 Testing of Rubber Insulating Gloves
Rubber insulating gloves will be tested annually to ensure that their protective
ability against shock has not been compromised. This testing will be
performed by Safety Test Co., located in Shelby, North Carolina. The gloves
will be approved and stamped for use or replaced when necessary.
6.2.4 Use of Rubber Matting
Employees working on energized or potentially dangerous equipment will be
provided with rubber matting on which to stand. (An exception to this occurs
when Traffic Signal Technicians are servicing traffic signal cabinets that
reside on concrete pads.) This matting will be capable of withstanding an
electrical charge of 30,000 volts.
6.2.5 Rubber Matting Replacement
Rubber matting will be replaced on an annual basis (without testing) to ensure
its capability to eliminate injury.
6.3 Specific Responsibilities
6.3.1 Managers/Unit Heads
Managers/Unit Heads will ensure that adequate fu