Adding a Fuse Spur on to a Consumer Unit Circuit

[RDB85]

I’ve had a disagreement with one of the Engineers in work. So we are doing an install. Installing an Intruder Alarm. Rather than go with my suggestion of coming off a Socket and adding in the Fuse Spur as he’s been doing it 15 years it’s now going next to the Consumer Unit. Which at a guess is 20 years old. He said it’s fine to just add in a circuit to an existing circuit.

Myself personally I’m dead against it. He’s not a qualified electrician. Thoughts?

 

[James]

I can think of one guy who works for a well known alarm company, whose knowledge of electrical systems is incredible (not simply alarms). Unfortunately he is a one off and his colleagues conform to my earlier, lazy stereotype.

Same here, good ones are hard to find in any trade.

 

[ipf]

Alarm engineers is a loose term. Anyone can program an alarm. I love the arrogance they have about them sometimes

Hence my regular use of the word 'engineer' in inverted commas, certainly in such instances.
Use of a quite special word by the 'not so special'.

 

[RDB85]

One of the ones today was it’s okay for our alarm panel to work from a switched FCU to a unswitched FCU as long as it’s spurred from the live side!

I just didn’t have the heart to tell him that he was talking absolute rubbish.

 

[nicebutdim]

One of the ones today was it’s okay for our alarm panel to work from a switched FCU to a unswitched FCU as long as it’s spurred from the live side!

I just didn’t have the heart to tell him that he was talking absolute rubbish.

Extending or spurring from a circuit.

Am I missing something here?

 

[RDB85]

Extending or spurring from a circuit.

Am I missing something here?

Socket circuit has a switch fuse spur that then has our unswitched fuse spur added on to it. As far as I know you can’t do. I’m not sure what the spur from the live side even relates to.

 

[nicebutdim]

Is this a ring final circuit?

 

[RDB85]

Is this a ring final circuit?

Two radials by the looks of it.

 

[MJPD29]

Sounds like a spur from a spur to me? Should be from the load side of the original spur if it’s a ring

 

[nicebutdim]

Two radials by the looks of it.

FCU is supplied from two separate circuits? This is getting more complcated with each post.

 

[RDB85]

Sounds like a spur from a spur to me? Should be from the load side of the original spur if it’s a ring

Yes it’s a spur from a spur. Which I was always taught you couldn’t do.