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BS

PDF Standards BS 4727-1 GROUP 02:1971

Glossary of electrotechnical, power, telecommunication, electronics, lighting and colour terms. Terms common to power telecommunications and electronics. General technological terminology
standard by BSI Group, 03/31/1973

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BS

PDF Standards BS 4794-1:1979

Specification for control switches (switching devices, including contactor relays, for control and auxiliary circuits, for voltages up to and including 1000 V a.c. and 1200 V d.c.)-General requirements
standard by BSI Group, 05/01/1982

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BS

PDF Standards BS 196:1927

Reversible protected-type two pin plugs and sockets with earthing connections (for circuits up to 250 volts between two poles)
standard by BSI Group, 08/12/1927

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