Discuss 1.5mm coming from a 20a isolator in the Electrical Forum area at ElectriciansForums.net

rugbylad

Regular EF Member
Messages
49
What is people’s opinion on 2.5mm swa entering a rotary isolator and a 1.5mm swa leaving on a 20a mcb? Having a bit of a discussion with a colleague.
 
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rugbylad

Regular EF Member
Messages
49
There’s a 1kw heater and 2 led lights not sure what wattage they are but they’re not huge just in a little store.
 
D

Deleted member 26818

Should be fine, unless it’s in a wall with insulation.
 
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rugbylad

Regular EF Member
Messages
49
What is your opinion rugbylad?
Well I think it is acceptable, it can take a round 24 amps with it being on tray and clipped in places, the total load probably won’t be m0re than 10amps and I’d say at a rough estimate theres about 25m of swa, so no issue on length of run.
 

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