MIL-HDBK-1025/10
Table 31
Approved Energized Work Methods by Voltage Class1
Nominal ac voltage level
Work method
Up to 600 volts
Gloving by conventional work position or by structure
mounting (ground potential)
0.601 to 7.5 kilovolts
Gloving from structure mounting or in an aerial lift
bucket (ground potential)
7.6 to 15 kilovolts
Gloving from electrically insulated aerial lift bucket or
platform (intermediate protection) or gloving and use
of live-line tools from structure mounting or an aerial
lift bucket (ground potential)
15.1 to 36 kilovolts
Gloving and use of live-line tools from an electrically
insulated aerial lift bucket (intermediate potential)
1
Applies to de-energized line work until lines have been grounded.
5.4.2.1 Rubber Goods. Use insulating (rubber) goods meeting the requirements
of ASTM F 18 standards with color coding meeting the requirements of Table 3. Use
leather protectors over rubber gloves.
Note
Inspection of rubber protective goods should be in accordance
with ASTM F1236, Guide for Visual Inspection of Protective
Rubber Products.
5.4.2.2 Insulating Tools. Use insulating tools meeting the requirements of Table
31 and ASTM F711, Specification for Fiberglass Reinforced Plastic (FRP) Rod and Tube
Used in Live-Line Tools, and IEEE Std 978, Guide for In-Service Maintenance and
Electrical Testing of Live-Line Tools. Use approved gloves and rubber insulating sleeves
with hot-line tools. The use of hot-line tools without gloves to detect tool deterioration is
prohibited. Complete instructions and regulations detailing correct use and maintenance
of such tools/equipment should be available and reviewed as a part of the work
procedures. At least two workers, fully qualified for the voltage range (including other
conductors within reach) should be available.
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