ASTM International - ASTM F968-93(1998)
Standard Specification for Electrically Insulating Plastic Guard Equipment for Protection of Workers
|Publication Date:||10 September 1998|
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:
18.104.22.168 Line guards,
22.214.171.124 Line guard connectors,
126.96.36.199 Insulator covers,
188.8.131.52 Dead end covers,
184.108.40.206 Bus guards, and
220.127.116.11 Bus "T" guards.
1.3.2 Structure and apparatus covers as follows:
18.104.22.168 Pole guards,
22.214.171.124 Ridge pin covers,
126.96.36.199 Switch-blade covers,
188.8.131.52 Arm guards,
184.108.40.206 Cutout covers, and
220.127.116.11 Cross arm guard.
1.4 The values stated in inch-pound units are to be regarded as the standard.