Focus DIY electrical project sheets
Taken from
http://www.focusdiy.co.uk/stry/diy29&bklist= "There are two types of circuit: radial and ring. Radial circuits. Sometimes a radial circuit supplies a number of power points. You can add extra power points here - but only by adding them on to the last outlet in the circuit, and only if the total floor area served is less than 20 sq metres. Ring circuits. With a ring circuit, the run of cable begins and ends at the consumer unit, and it can have 13amp outlets, provided the total floor area they serve is less than 100 sq metres. Any outlet on the ring circuit can be used as the jumping-off point for a "spur" - which is like a little radial circuit. You can "tee" a new spur from an outlet that hasn't got one already, or you can add an outlet to the end of a spur - provided there are no more spur-outlets in total than the number of outlets on the ring circuit itself, and you stay within the 100 sq metre floor area limit. Sockets should not be fitted in bathrooms." Is that crap or what? Adam |
Focus DIY electrical project sheets
On Sun, 26 Feb 2006 21:33:20 GMT, "ARWadsworth"
wrote: Taken from http://www.focusdiy.co.uk/stry/diy29&bklist= "There are two types of circuit: radial and ring. Radial circuits. Sometimes a radial circuit supplies a number of power points. You can add extra power points here - but only by adding them on to the last outlet in the circuit, and only if the total floor area served is less than 20 sq metres. Crap. You can have any topology that you like. Ring circuits. With a ring circuit, the run of cable begins and ends at the consumer unit, and it can have 13amp outlets, provided the total floor area they serve is less than 100 sq metres. That's true. Any outlet on the ring circuit can be used as the jumping-off point for a "spur" - which is like a little radial circuit. Loose description. You can "tee" a new spur from an outlet that hasn't got one already, or you can add an outlet to the end of a spur - provided there are no more spur-outlets in total than the number of outlets on the ring circuit itself, and you stay within the 100 sq metre floor area limit. Sockets should not be fitted in bathrooms." Is that crap or what? That is crap. The only way that that can be done is to fit an FCU instead of the socket on the ring and wire from the downstream side of that. On that part, you can have whatever you like as long as the fuse is appropriately selected for the purpose. Adam -- ..andy |
Focus DIY electrical project sheets
"Andy Hall" wrote in message ... On Sun, 26 Feb 2006 21:33:20 GMT, "ARWadsworth" wrote: Taken from http://www.focusdiy.co.uk/stry/diy29&bklist= snipped Ring circuits. With a ring circuit, the run of cable begins and ends at the consumer unit, and it can have 13amp outlets, provided the total floor area they serve is less than 100 sq metres. That's true. =================== Nearly true, I think. Shouldn't it read 'unlimited 13amp outlets' or something similar? snipped Adam -- .andy |
Focus DIY electrical project sheets
On Sun, 26 Feb 2006 21:57:53 GMT, "Cicero"
wrote: "Andy Hall" wrote in message .. . On Sun, 26 Feb 2006 21:33:20 GMT, "ARWadsworth" wrote: Taken from http://www.focusdiy.co.uk/stry/diy29&bklist= snipped Ring circuits. With a ring circuit, the run of cable begins and ends at the consumer unit, and it can have 13amp outlets, provided the total floor area they serve is less than 100 sq metres. That's true. =================== Nearly true, I think. Shouldn't it read 'unlimited 13amp outlets' or something similar? Yes. -- ..andy |
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