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DanBrown
Can anyone shed a bit of light on correct sizing of mains tails...
I am always let to believe that all cables need to be protected by the correct size fuse...
So i know in a domestic that 25mm2 is the minimum permitted cable CSA and can take 114 Amps.
What happens in a commercial building for example and has a 300A service head??, according to OSG the closest to match 300A is 95mm2 CSA and that can only take 284A.. What is the correct size to use?
Thanks in advance guys..
I am always let to believe that all cables need to be protected by the correct size fuse...
So i know in a domestic that 25mm2 is the minimum permitted cable CSA and can take 114 Amps.
What happens in a commercial building for example and has a 300A service head??, according to OSG the closest to match 300A is 95mm2 CSA and that can only take 284A.. What is the correct size to use?
Thanks in advance guys..