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TCS have adopted the colours specified in the
WIMES specification as standard. However, situations
arise that are not covered by BS7671, WIMES,
or the clients specification, and in these circumstances
TCS have adopted the cable colours detailed below:
Miscellaneous Circuits:
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Conductor Colours
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Current transformer/Ammeter circuits
(all conductors)
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Voltmeter fed from selector switch
(L1-N,
L2-N, L3-N)
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Voltmeter fed from selector switch
(L1-L2,
L2-L3,L3-L1, or
(L1-L2, L2-L3,L3-L1,L1-N,L2-N,L3-N)
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Star point on contactors
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Supply voltage independent circuits,
e.g. Thermistors, RTD's, Level probes, Seal
leak, etc.
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Last updated 17 March 2005
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