Why can you not spur off a spur?

The reason for not running two spurs from the same spur "point" is that it can lead to possible overloads in that one leg of the final can become unbalanced and exceed the max.

Can you fuse spur off a spur?

the regs say you can have unlimited fused spurs but only the same number of unfused spurs as there is sockets but you cannot spur of a spur fused or unfused, regards Terry.

Can two Spurs be off one socket?

Only one fused spur may be taken from any socket on a ring. From that fused spur you can have as many electrical outlets as you like, as they are then protected by the fuse.

How many sockets can I run off a spur?

How Many Sockets Can Be on a Spur? Only one spur can be connected to a single socket.

How many Spurs can you have off a fused spur?

The limit of one spur per point is if the point which is spurred off is UNFUSED. If you fuse it to 13A you can put as many as you want on it.

SPURS ON SPURS Extending Circuits

Can I take a spur off a ring main?

Branches know as spurs may be taken off the ring from any socket or by breaking into one of the cables of the ring. They can either be non-fused which connect directly to the ring or can be a fused spur which connect to the ring via a switched or unswitched-fused connection unit.

Can I add a socket to a fused spur?

You can add another socket of any socket all ready in the ring main, this is then classed as a "spur"on the ring. you do not need to fit a fused spur. But you cant add further sockets from the spur .

Can I extend a fused spur?

If the circuit is a radial circuit then it can be extended with an unfused spur-off-a-spur as the cable is sized to carry the whole load of the circuit at any point. The radial must be extended in the same size cable as the existing circuit. Thanks for explaining the "extending the ring" part.

Can I use a plug instead of a fused spur?

So as long as the plug sockets are accessible without touching the appliance to turn it off then this is fine, but also a fused spur is fine too."

How many times can I spur off a ring main?

The rules for spurring off ring circuits are you are allowed ONE unfused spur to a socket (single or double) or ONE fused spur to as many sockets as you wish. You can't have both on the same point.

Can you spur off a spur on a radial?

The simple answer to this question is yes you can and this is known as a spur, or spurred socket, but there are a few things that you nee to be aware of. You can add one further accessory or socket off of a single socket present in a radial circuit and no more.

How many sockets can you have on a ring main?

There is no limit to the number of sockets you can have on a ring main but there is a limit to the number of spurs you can have from those sockets or from the wiring between them. If you would like to know how to add a spur to an existing ring main, see our project on adding an extra socket.

How long can a spur off a ring main be?

Section 7.2. 2 of the OSG says 'as a rule of thumb for rings, unfused spur lengths should not exceed 1/8 the cable length from the spur to the furthest point of the ring'.

Is adding a fused spur notifiable?

As long as the job isn't within a 'special location' such as a bathroom or outdoors, you're also allowed to install additional new light fittings, switches, sockets and even add a single fused spur to an existing circuit (a 'spur' is a new cable and socket run as a branch from an existing socket on the ring main).

Can a fused spur be part of the ring main?

A fused spur is an electrical supply accessory that incorporates a fuse. This fuse, with a lower rating than the fuse for a ring man, allows an electrical supply using one feed cable to a socket to be taken off a ring main.

Can you spur off a socket for a light?

You need the neutral to make the light work but you can take a spur from the socket underneath the desk for a light, you could place a FCU next to socket underneath desk then run cable to light switch and then on to light fitting .. you cannot run spur to spur with sockets incase of over load of cable but a light is ...

How many 13 amp sockets can a spur have?

you can have maximum one double socket as a normal spur but if you are going from socket to FCU fused at 13 amp from there you can add as many sockets as you wish as all the sockets and cable will be protected by the fuse so no chance of overloading the cable the fuse will blow first.

Can I add more sockets to a ring main?

Make sure the power is turned off and any circuits you are working on are completely isolated. See our electrical safety project. If you need extra sockets in a new room or turn an old room into an office, it may not be possible to add extra sockets from your existing ring main.

Can you spur off a ring main in 1.5 mm?

no because you will have a 32 amp mcb protecting a 1.5mm2 cable.

How many 13 amp sockets can a ring main have?

The IET Wiring Regulations (BS 7671) permit an unlimited number of 13A socket outlets (at any point unfused single or double, or any number fused) to be installed on a ring circuit, provided that the floor area served does not exceed 100 m².

How many amps can a spur take?

The maximum load you can run from a spur is 13A (Approx 3kW). If the sockets are fed from a fused connection unit (and fused at 13A) then the number of sockets supplied could in theory be as many as you want - providing that the total load of what ever you connect/use simultaneously doesn't exceed 13A.

Are ring mains still used?

Yes, ring mains (more correctly called ring final circuits these days) were and still are the norm for most UK dwellings. A very common arrangement was two ring final circuits, one for upstairs and one for downstairs.

Can I use 1.5 mm cable for ring main?

It depends. If a fuse spur has been installed and then a supply from that has been taken to your new socket in 1.5 then its fine as the fuse spur will limit the current to 13 amps which 1.5 can handle. If its direct off another socket then it must be 2.5 in normal domestic wiring.