Can I run a spur off a spur?

A spur can be connected to an existing socket, on either a ring main or a radial circuit, providing that socket does not already have a spur. That is only one spur per socket is allowed and the number of spurs must not exceed the number of sockets.

What happens if you run a spur from 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. allowed amps for a bit of 2.5mm if the tap off point is near the cu.

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.

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.

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.

SPURS ON SPURS Extending Circuits

How many sockets can you spur off a ring main?

A spur can be connected to an existing socket, on either a ring main or a radial circuit, providing that socket does not already have a spur. That is only one spur per socket is allowed and the number of spurs must not exceed the number of sockets.

How many sockets can be on a spur?

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

What can you run off a fused spur?

Between the appliances or electrical devices that should be connected to a fused spur are the thermostat, dishwasher, washing machine, heater, boiler, refrigerator, and oven. But other electric devices that aren't usually inside the house, like a water pump, can also be connected.

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 you put a double socket on a fused spur?

If the circuit is a ring circuit then an unfused spur can supply a maximum of one single or one double socket. A fused spur, as you propose, can supply an unlimited number of sockets with a maximum load of 13A.

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'.

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.

How many Spurs are on a radial circuit?

As many as you want using 2.5 mm sq. Unfused spurs off a 30/32 A radial. One single or one twin using 2.5 mm sq. As many as you want using 4.0 mm sq.

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 I add a spur to a ring main?

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 you change single plug sockets to doubles?

If you are wondering whether you can swap any single socket for a double, then the answer is yes, providing the existing socket is the only one on that spur (wire feed) from the ring main.

Can you extend a spur?

You mustn't run a spur from a socket that's already on a spur, or that already supplies a spur. And the new socket mustn't extend the floor area served by the circuit beyond 100 square metres.

Do all Spurs need to be fused?

"The regulations state that the appliance needs to be fused, either with a plug or a fused spur. It also states that the appliance needs to be able to be turned off in an event of a breakdown without touching the appliance.

How many sockets can you have on a 20 amp radial?

The answer to the question how many outlets on a 20 amp circuit is ten outlets. Always comply with the 80% circuit and breaker load rule, allowing a maximum load of 1.5 amps per receptacle. Remember that your circuit, wire sizes, and outlets must be compatible to avoid overheating and electrical hazards.

How many 13A sockets can be on a ring circuit?

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.

Is extending a ring main notifiable?

extending an existing ring main is considered minor work and a minor works certs is all that required. installing sockets to external building is notifiable.

Can you wire sockets in 1.5 mm?

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.

How far can you run 2.5 mm cable?

A good rule of thumb for ring finals wired in 2.5mm is that the total length of cable used should preferably not exceed 100m. In certain circumstances a larger total cable length may be admissible, but such circumstances need careful consideration.