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Band I / Band II cct separation

Farmboy
Does the principal of Band I / Band II  cct separation re 528.1 apply within equipment? A DETA mechanical chime with internal transformer has LV and ELV wiring right near each other within the same enclosure (the lid of which is easily removable without tools), which seems to moot the requirement to have them separated as per the reg?


F
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    tattyinengland:

    Well consider a motor control centre where voltages of any size may be present. The controls from automation equipment and telemetry are likely to be present and cables carry no volts at all are common monitoring whether a contactor is open or closed for example. 

     



    An MCC would probably be an industrial or commercial application. BS 7671 wouldn't apply in that case, i.e. above 100 Amps.


    Jaymack
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  • 0

    tattyinengland:

    Well consider a motor control centre where voltages of any size may be present. The controls from automation equipment and telemetry are likely to be present and cables carry no volts at all are common monitoring whether a contactor is open or closed for example. 

     



    An MCC would probably be an industrial or commercial application. BS 7671 wouldn't apply in that case, i.e. above 100 Amps.


    Jaymack
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