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BSI BS 3297-2:1993

Characteristics of indoor and outdoor post insulators for systems with nominal voltages greater than 1000 V
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BSI BS 3297-2:1993

Characteristics of indoor and outdoor post insulators for systems with nominal voltages greater than 1000 V

PUBLISH DATE 1993
PAGES 48
BSI BS 3297-2:1993

This standard applies to post insulators and post insulator units of ceramic material or glass intended for indoor or outdoor service, and to post insulators of organic material intended for indoor service in electrical installations or equipment operating on alternating current systems with a nominal voltage greater than 1 000 V and a frequency not greater than 100 Hz. It may also be regarded as a provisional standard for insulators for use on direct current systems.

The insulators covered by this standard are primarily intended for use in isolators (disconnectors) or as bus-bar or fuse supports.

This standard covers five types of post insulators:

  1. indoor post insulators of ceramic material or glass and with internal metal fittings;

  2. indoor post insulators of organic material and with internal metal fittings;

  3. outdoor cylindrical post insulators of ceramic material or glass and with internal metal fittings;

  4. outdoor cylindrical post insulators of ceramic material or glass and with external metal fittings;

  5. outdoor pedestal post insulators of ceramic material or glass.

The term “cylindrical insulators? is intended to cover insulators of the truncated conical form also.

The five types of insulators are distinguished by their electrical, mechanical and dimensional characteristics. Figure 1, Figure 2, Figure 3, Figure 4 and Figure 5 illustrate typical examples of each type of insulator.

These drawings are only general illustrations and other shapes and constructions are permitted.

SDO BSI: British Standards Institution
Document Number 3297-2
Publication Date Jan. 15, 1993
Language en - English
Page Count 48
Revision Level
Supercedes
Committee PEL/36
Publish Date Document Id Type View
Jan. 15, 1993 BS 3297-2:1993 Revision
May 31, 1982 BS 3297-2:1982 Revision