BS 6732:1987 pdf free download

06-15-2021 comment

BS 6732:1987 pdf free download.Specification for Low-voltage switchgear and controlgear for industrial use Size numbers and gauges for flat connections.
BS 6732 has been prepared by the CENELEC Technical Committee 17B.
1 Scope
BS 6732 applies to flat connections of low-voltage switchgear and controlgear by means of flat terminals with one clearance hole, or one threaded hole, or one screw or stud, which are designed for the connection of rectangular bars or of lugs for round conductors.
The extension of BS 6732 to terminals with 2, 3 or 4 clearance or threaded holes, screws or studs is under consideration.
2 Object
BS 6732 lists eleven sizes of flat terminals, each with a corresponding reference number (see Table 1). The standard also specifies gauges for the verification of the minimum required space, the correct location of the clearance or the threaded holes and, where appropriate, the screw size to ensure that a given flat. terminal of an equipment will accept a specific bar and/or a specific lug for a round conductor.
NOTE These gauges are based on the bars and lugs according to existing national standards of the CENELEC members.
BS 6732 does not deal with the dimensions of the terminals of the device nor with the dimensions of the bars or lugs to be connected, nor with the quality of the connection, nor does it deal with clearances and creepage distances.
3 FIat connection size number and gauges
Table 1 gives the screw or stud sizes, together with the dimensions of the corresponding gauges.
4 Application of gauges
Before the verification of flat terminals, any existing removable threaded elements shall be removed. Where a flat terminal can be used on both sides (above and below), the gauge shall be used accordingly.
4.1 Terminal with clearance hole
It shall be possible to place the gauge (2) flat on to the equipment terminal (1). and the corresponding screw (3) of the terminal size in accordance with Table 1 shall easily screw into the threaded hole of the terminal (I).
4.3 Terminal with screw or stud

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