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  • BSI
    BS 2562:1979 Specification for cable boxes for transformers and reactors
    Edition: 1979
    $497.46
    / user per year

Description of BS 2562:1979 1979

This British Standard specifies requirements for cable boxes in which the cores of cables terminate within the box and are connected to terminals fixed therein.

The boxes are intended for the termination of impregnated-paper-insulated solid-type lead or aluminium sheathed cables having copper or aluminium conductors and for the termination of extruded insulated and sheathed unarmoured cables having copper or aluminium conductors.

The boxes are suitable for operating indoors or outdoors under conditions of ambient temperature, loading, altitude, etc., envisaged by BS 171.

The standard box is arranged for cables approaching vertically from below and is not bi-directional. Where cables approach vertically from above, alternative parts are required (see Figure 28).

Details of the range of boxes are given in Table 3 to Table 11.

The objectives of this standard are to specify standard envelope dimensions and fixing dimensions of cable boxes to achieve interchangeability whatever type of filling medium is to be used, and also to specify dimensions of components, e.g. bushings, glands, for interchangeability of such parts.

The boxes are suitable for rated voltages up to 36 kV and currents up to 2 500 A.

This standard does not purport to specify complete details of design and construction but some observations on these aspects are given in clause 7.

NOTE This standard does not apply to boxes where the cable cores pass through to the transformer without a joint or are joined to cable tails in the box by sleeves or thimbles.

Section 2 and 3 deal with design principles, general considerations and tests for a range of cable boxes up to and including 36 kV rated voltage.

Section 4 specifies the essential dimensions and component details for the range of cable boxes.

Appendix A lists the information to be given with enquiry and order. Appendix B specifies wiping glands for metallic sheathed cables.



Specifies envelope and fixing dimensions and dimensions of certain components. For voltages up to 36 kV and currents up to 2500 A. Requirements for boxes in which the cores of cables terminate and are connected to terminals. For paper or extruded insulated cables with copper or aluminium conductors and lead or aluminium sheaths.

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.

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