securespark said:You should not be running 2.5 on a 30A fuse!! Change the fuse to 20A.
The all idea of safety is to protect the cable, there are many more factors involved in derating the cable capacity, just an example; if you run the cable across insulated area for more tha a certain length (about 400mm I think) the cable capacity will be halved, meaning if it can carry 30A it should be considered as 15A and so on. The recommendations of the On Site Guide For a 2.5 cable T&E in a radial configuration is to be protected by max. 20A MCB not higher.barty74 said:securespark said:You should not be running 2.5 on a 30A fuse!! Change the fuse to 20A.
even though the overall load is more than 20A and the cable is capable of carrying more? dont get me wrong, i am not questioning your knowledge, but simpy understanding everything involved.
barty74 said:securespark said:You should not be running 2.5 on a 30A fuse!! Change the fuse to 20A.
even though the overall load is more than 20A and the cable is capable of carrying more? dont get me wrong, i am not questioning your knowledge, but simpy understanding everything involved.
Albert said:The all idea of safety is to protect the cable, there are many more factors involved in deteriorating the cable capacity, just an example; if you run the cable across insulated area for more than a certain length (about 400mm I think) the cable capacity will be halved, meaning if it can carry 30A it should be considered as 15A and so on. The recommendations of the On Site Guide For a 2.5 cable T&E in a radial configuration is to be protected by max. 20A MCB not higher.barty74 said:securespark said:You should not be running 2.5 on a 30A fuse!! Change the fuse to 20A.
even though the overall load is more than 20A and the cable is capable of carrying more? don't get me wrong, i am not questioning your knowledge, but simply understanding everything involved.
My advice to you is to stay on the safe side, use the good and free advice given in this site, and if you are still not sure call in a qualified electrician.
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