Installation design
Posted: Sun Apr 15, 2007 1:51 am
hello sparx and mill spark thank you for replying
I'm starting to understand some but not all areas finding out the amps or watts is ok,
As an electrician do you have to design the installations you do
Example outside workshop
CU in the house needs another MCB added so would you use a 50a
there is 40m of cable needed 15m inside 25m out would you use 15m 10mm T&E to get outside then a trip of some sort to join it to the 10mm armoured which would go straight into the CU in the workshop then this CU has to run an air compressor min 30a supply, would you use a 32a MCB and 6mm T&E just the same as a cooker. Also min 30 supply welder/large battery charger would you use a 32a MCB and 6mm T&E plus another 32a MCB and 2.5mm T&E for about 10 double sockets in a ring. 6a MCB 1.5mm standard lighting. For out side lighting would it be advisable to use a 10a MCB with 2.5mm T&E for halogen 500w lights
Could you tell me how you get work out what is the best type of thing to use and why. Not difficult please
Thanks
tom
I'm starting to understand some but not all areas finding out the amps or watts is ok,
As an electrician do you have to design the installations you do
Example outside workshop
CU in the house needs another MCB added so would you use a 50a
there is 40m of cable needed 15m inside 25m out would you use 15m 10mm T&E to get outside then a trip of some sort to join it to the 10mm armoured which would go straight into the CU in the workshop then this CU has to run an air compressor min 30a supply, would you use a 32a MCB and 6mm T&E just the same as a cooker. Also min 30 supply welder/large battery charger would you use a 32a MCB and 6mm T&E plus another 32a MCB and 2.5mm T&E for about 10 double sockets in a ring. 6a MCB 1.5mm standard lighting. For out side lighting would it be advisable to use a 10a MCB with 2.5mm T&E for halogen 500w lights
Could you tell me how you get work out what is the best type of thing to use and why. Not difficult please
Thanks
tom