tegwin
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| posted on 15/11/07 at 03:12 PM |
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OT Electrical isolators
I have two sepperatly fused 30A supplies feeding two sepperate heaters.
Edited to say, its 230V AC 30A supplies!
Is it possible/safe to use a single isolator for both supplies?
Both heaters are sharing a common controler and it would be safer if both machines and both control links were isolated at the same time, so there can
be NO mistakes!
Can I use something like this given that its a 4 pole unit (Isolating all four wires seppratly in one housing?
http://www.screwfix.com/app/sfd/cat/pro.jsp;jsessionid=JAGAAPDUVPUW2CSTHZOSFFI?id=12556&ts=39308
[Edited on 15/11/07 by tegwin]
[Edited on 15/11/07 by tegwin]
[Edited on 15/11/07 by tegwin]
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Macbeast
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| posted on 15/11/07 at 03:16 PM |
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Don't know the thing, but at first sight yes 
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MkIndy7
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| posted on 15/11/07 at 05:24 PM |
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The heaters should have a local isolation point at EACH appliance for maintanance and testing purposes (both the electical isolation and fuel
isolation within arms reach of the servicable areas)
Each unit should have its own isolator that breaks both the control circuit AND the main power circuit as you could have to test or remove something
on the controls
If you use 2 seperate Isolators then you can run the units independantly as you can locally isolate each appliance should there be a fault with it.
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