| Re: Tuesday Chat 12.22.09 |
Subject: Re: Tuesday Chat 12.22.09 by CasetheCorvetteman on 2009/12/23 10:27:05 How the hell did i post that twice?  Quote:
Which parts do you mean mate? Ill explain abit of it for ya, just from that statement you made it appears you are in the electrical trade or have seen abit of it. The main switch on the left has 25mm copper cable going in at the top, and the ones comming out the bottom are 16mm each, two for each phase ( one lot feeding the first 3 pole breaker, and the 2nd lot feeding the 4 pole RCD ), and all plastic coated. I bent them up like that myself. As far as the breakers and 2 RCDs go, ofcourse they are plastic, what else would they be? This is a domestic switchboard, no reason to go any more overboard than i allready have, with what is coming in cable wise, you could feed 3 very large sized houses from that. Our voltage here ( 230volts on single phase and 400 volts on 3 phase ) is higher than you have there, so our cable sizes dont need to be as large, cause with a higher voltage, more work can be done with less current. Since the human body requires an AC voltage about 50 volts or higher in order to overcome the resistance, and it only takes a current of around 200mA to cause cardiac arrest, these higher voltages are no more dangerous than the lower voltages used in some other countries. Does that clear it up for you? Im not quite sure what bit you wanted to know about!!  |
