Joined: 01 Feb 2006 Posts: 11 Location: Sussex, United Kingdom Thanked: 0 times
Posted: Wed Feb 01, 2006 5:42 pm Post Subject:
Spur
If I run a spur off an existing socket using a 13a FCU first off, can I daisy chain other sockets from the new socket. i.e existing socket-fcu-new socket-new socket-etc,
Joined: 15 Nov 2005 Posts: 24037 Location: Hampshire, United Kingdom Thanked: 54 times
Posted: Wed Feb 01, 2006 9:55 pm Post Subject:
It means that if you have a fused spur, as he described, you can put seeral small loads it safe in the knowledge that the total load will never exceed 13Amp because that it waht you have fused it down to. The other items are run in a single line, not branching off into spurs. It's a radial.
Joined: 15 Apr 2005 Posts: 12845 Location: Yorkshire, United Kingdom Thanked: 21 times
Posted: Thu Feb 02, 2006 7:56 pm Post Subject:
bpowell555 wrote:
Seriously though, let me get this right, you can't spur off a spur but you can run an FCU off a spur? This is brilliant! That's made my day
noooo! come back!
you can have a spur (chain of sockets on 2.5mm˛) as long as you want, with as many sockets as you want, PROVIDING you start the chain of sockets with an FCU with a 13A fuse in it!
Think about it like those 10-way trailing sockets you can buy now, they start with a 13A plug, its just the same.
Joined: 19 May 2005 Posts: 314 Location: Sussex, United Kingdom Thanked: 0 times
Posted: Mon Feb 06, 2006 9:38 am Post Subject:
crafty1289 wrote:
bpowell555 wrote:
Seriously though, let me get this right, you can't spur off a spur but you can run an FCU off a spur? This is brilliant! That's made my day
noooo! come back!
you can have a spur (chain of sockets on 2.5mm˛) as long as you want, with as many sockets as you want, PROVIDING you start the chain of sockets with an FCU with a 13A fuse in it!
Think about it like those 10-way trailing sockets you can buy now, they start with a 13A plug, its just the same.
Ok I get you the FCU must be at the start of the spur. So if you have a spur you want to extend and are sure its not already a spur off a spur, then you should cut an FCU in before the spur after which you can extend ad infinitum - for low load items.
This is cool. It gives me some options for wiring I hadn't thought were available before
Joined: 14 Sep 2004 Posts: 3972 Location: United Kingdom Thanked: 0 times
Posted: Mon Feb 06, 2006 9:41 am Post Subject:
bpowell555 wrote:
crafty1289 wrote:
bpowell555 wrote:
Seriously though, let me get this right, you can't spur off a spur but you can run an FCU off a spur? This is brilliant! That's made my day
noooo! come back!
you can have a spur (chain of sockets on 2.5mm˛) as long as you want, with as many sockets as you want, PROVIDING you start the chain of sockets with an FCU with a 13A fuse in it!
Think about it like those 10-way trailing sockets you can buy now, they start with a 13A plug, its just the same.
Ok I get you the FCU must be at the start of the spur. So if you have a spur you want to extend and are sure its not already a spur off a spur, then you should cut an FCU in before the spur after which you can extend ad infinitum - for low load items.
This is cool. It gives me some options for wiring I hadn't thought were available before
Cheers!
altho if you do go this way, be aware that you only have 13A to play with for all the sockets fed form the FCU. so no using the hoover and electric heater....
Joined: 15 Feb 2006 Posts: 14 Location: Coventry, United Kingdom Thanked: 0 times
Posted: Wed Mar 22, 2006 4:01 pm Post Subject:
To further clarify, if you have a socket which is already on a spur and then you fit an FCU to "extend" the spur, the length of cable running between the socket and the FCU is technically an unfused spur itself (as the FCU comes AFTER it not before it.) Therefore this length of cable, however short, is "an unfused spur off an unfused spur" which is not allowed ?
Joined: 26 Aug 2005 Posts: 1596 Location: United Kingdom Thanked: 0 times
Posted: Wed Mar 22, 2006 6:38 pm Post Subject:
richardpy1 wrote:
To further clarify, if you have a socket which is already on a spur and then you fit an FCU to "extend" the spur, the length of cable running between the socket and the FCU is technically an unfused spur itself (as the FCU comes AFTER it not before it.) Therefore this length of cable, however short, is "an unfused spur off an unfused spur" which is not allowed ?
Views ??
Hope that doesn't confuse !
Rich
The FCU goes before the first socket in the spur, so it is connected to the existing socket (on a ring or radial), not after the existing spur socket. If you want to turn an existing unfused spur into a fused spur, the fuse goes before the socket on that spur.
With regard to the cable up to the fuse, the current in this is still limited to the fuse current, unless of course you manage to stick a nail through it, but in that case the current is then picked up by the fuse on the existing circuit.
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