Just a quick question. This might sound like a stupid question so apologises. I'm slightly confused with the regs 18th edition when it comes to disconnection times. So I was taught in college that in the 17th edition that when a circuit is less than 32A then the maximum permitted time is 0.4 seconds and anything over 32A then its 5 seconds. Now in the 18th edition has it has been changed? So that anything under 63A supplying socket outlets its 0.4 seconds and anything over 63A its 5 Seconds. And also why would you have socket outlets on a 63A breaker when it should be on a 32A ring or 20A radial. Sorry if those questions sound stupid, it's just I can't get my head around it for some reason. Thanks.