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EN60204-1:2006; +24VDC and -24VDC Wire Colours

FusionControlEng
Hello All


I have a piece of equipment that I am trying to wire up in accordance to EN60204-1:2006.


On the equipment I have AC mains (230VAC) coming in, this is then converted to +/-24VDC


According to the attached document, for AC and DC power circuits the wire colour black is used, so does this mean for my +/-24VDC, I use black for both the positive and negative?


This is strange as you would not be able to tell the difference between +24VDC and -24VDC


Could someone please clarify


Many thanks in advance
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    I agree with Paul here.


    The "Approved List" for BS 7671, is not the "Approved List" in BS EN 60204-1, which is different (but still follows BS EN 60445).


    BS EN 60445 does permit some options in how it is implemented, which accounts for these differences.


    Further, actual drawings and individual wire schedules will be non-existent for many electrical installations, but are essential (along with, as has been pointed out, wire/terminal numbers) for many machines and their controls.
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  • 0
    I agree with Paul here.


    The "Approved List" for BS 7671, is not the "Approved List" in BS EN 60204-1, which is different (but still follows BS EN 60445).


    BS EN 60445 does permit some options in how it is implemented, which accounts for these differences.


    Further, actual drawings and individual wire schedules will be non-existent for many electrical installations, but are essential (along with, as has been pointed out, wire/terminal numbers) for many machines and their controls.
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