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This specification covers plastic guard equipment and guard systems used by workers for temporary insulation on electric power circuits.
Formerly under the jurisdiction of ASTM Committee F18 on Electrical Protective Equipment for Workers and Subcommittee F18.25 on Insulating Cover-up Equipment, this specification was withdrawn in October 2008 in accordance with section 10.5.3.1 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date. Additionally, the standard was rolled into the latest revision of F 712 and the committee believes that this standard is no longer necessary.
1.1 This specification covers plastic guard equipment and guard systems used by workers for temporary insulation on electric power circuits.
1.2 Plastic guard equipment covered by this specification is rated for momentary, or brush contact only. Maximum-use voltages are covered in Annex A1.
1.3 Typical guards covered include, but are not limited to, the following:
1.3.1 Conductor guards and connecting covers as follows:
188.8.131.52 Line guards,
184.108.40.206 Line guard connectors,
220.127.116.11 Insulator covers,
18.104.22.168 Dead end covers,
22.214.171.124 Bus guards, and
126.96.36.199 Bus "T" guards.
1.3.2 Structure and apparatus covers as follows:
188.8.131.52 Pole guards,
184.108.40.206 Ridge pin covers,
220.127.116.11 Switch-blade covers,
18.104.22.168 Arm guards,
22.214.171.124 Cutout covers, and
126.96.36.199 Cross arm guard.
1.4 The values stated in inch-pound units are to be regarded as the standard.
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ASTM F968-93(2002)e1, Standard Specification for Electrically Insulating Plastic Guard Equipment for Protection of Workers (Withdrawn 2008), ASTM International, West Conshohocken, PA, 1993, www.astm.orgBack to Top