Hi All
I haven't done any 3 Phase work for some time but I have just been asked to wire up a new woodworking workshop.
There will be 6 - 7, 3 pahse machines all ballanced load machines (4 pin plugs, 3 ph & e)
3 - 4 single phase machines, 2 x 32A ring socket cicuits and a couple of lighting circuits
The main incomer (35mm SWA) is protected back at the mains board by a 100A 100mA ELCB.
I need to install a new 3 phase board in the workshop (any recommendations for a good board?)
I know all sockets up to 32A require RCD protection now, so do I install a mains incomming 4 pole RCD in the new board (I know with this if anything tripped he would loose everything!), separate RCD's to all the 3 phase sockets (expensive, also I can ony find 4 pole rcds so I would need to spec a much bigger board & how would they work on a balanced 3 phase load with no neutral?), or can I hardwire all the 3 phase machines in to avoid fitting RCD's to all the circuits? and just fit rcbo's to socket and lighting ciruits and possibly the single phase machines and then would you keep the 4 pole RCD incomer?
Thanks
Garry
I haven't done any 3 Phase work for some time but I have just been asked to wire up a new woodworking workshop.
There will be 6 - 7, 3 pahse machines all ballanced load machines (4 pin plugs, 3 ph & e)
3 - 4 single phase machines, 2 x 32A ring socket cicuits and a couple of lighting circuits
The main incomer (35mm SWA) is protected back at the mains board by a 100A 100mA ELCB.
I need to install a new 3 phase board in the workshop (any recommendations for a good board?)
I know all sockets up to 32A require RCD protection now, so do I install a mains incomming 4 pole RCD in the new board (I know with this if anything tripped he would loose everything!), separate RCD's to all the 3 phase sockets (expensive, also I can ony find 4 pole rcds so I would need to spec a much bigger board & how would they work on a balanced 3 phase load with no neutral?), or can I hardwire all the 3 phase machines in to avoid fitting RCD's to all the circuits? and just fit rcbo's to socket and lighting ciruits and possibly the single phase machines and then would you keep the 4 pole RCD incomer?
Thanks
Garry