Cable Type (20 chars)

[Adam W]

H07RN is my go to cable for wiring machines

Fair enough. Some people use SY, but your choice is a good one.

 

[Spoon]

SY cable manufacturers now state "SY control cables are not suitable for fixed wiring applications requiring compliance with the requirements set out in BS7671."

 

[Adam W]

SY cable manufacturers now state "SY control cables are not suitable for fixed wiring applications requiring compliance with the requirements set out in BS7671."

That doesn't really say much.

 

[Octopus]

SY cable manufacturers now state "SY control cables are not suitable for fixed wiring applications requiring compliance with the requirements set out in BS7671."

"

That message clearly isn't understood ..... I've seen it being used for outdoor installations around and about

 

[Pete999]

"

That message clearly isn't understood ..... I've seen it being used for outdoor installations around and about

As have I Murdoch used it a lot for the interlinking of indoor and outdoor A/C units, the A/C companies sometimes depending on which manufacturer you use, recomendusing it, so there is obviously some confusion, stopped using it when one of the brighter Lads in my unit pointed out the point that SY doesn't comply with BS 7671.

 

[Spoon]

That message clearly isn't understood ..... I've seen it being used for outdoor installations around and about

It is only a recent change. We used to use SY for wiring up some equipment.

 

[Octopus]

As have I Murdoch used it a lot for the interlinking of indoor and outdoor A/C units, the A/C companies sometimes depending on which manufacturer you use, recomendusing it, so there is obviously some confusion, stopped using it when one of the brighter Lads in my unit pointed out the point that SY doesn't comply with BS 7671.

I wasn't referring to fixing AC units... Garden lights...

 

[Pete999]

I wasn't referring to fixing AC units... Garden lights...

I wasn't referring to fixing AC units... Garden lights...

I know you were.

 

[Octopus]

^^

The last time I looked at the spec its range was -5 upwards, so unsuitable for outdoor usage surely

 

[Octopus]

^^

The last time I looked at the spec its range was -5 upwards, so unsuitable for outdoor usage surely

 

[Bobster]

It is only a recent change. We used to use SY for wiring up some equipment.

It's not a recent change at all, SY has not complied with BS7671 since the 16th edition at least.

I think recently they have been pressure to make it clearer that it doesn't.

 

[Spoon]

It's not a recent change at all, SY has not complied with BS7671 since the 16th edition at least.

I think recently they have been pressure to make it clearer that it doesn't.

I was referring to them stating "SY control cables are not suitable for fixed wiring applications requiring compliance with the requirements set out in BS7671." mate.

 

[hightower]

There's a very famous open air history museum in my area - last time I visited I noticed the outside lights, the ones running all round the pathways fixed to fencing etc, were wired in SY. I think it looked like SWA in to an enclosure and then SY from the enclosure to the fitting (which was quite long in some cases).

In answer to Dave, I have wondered that myself but with asbestos being in the vicinity and a couple other factors (possible need to add additional circuits in future such as outside lights, and the run to the room) I think it's going to be both easier and better to stick a distro circuit in with a DB.

 

[davesparks]

[

In answer to Dave, I have wondered that myself but with asbestos being in the vicinity and a couple other factors (possible need to add additional circuits in future such as outside lights, and the run to the room) I think it's going to be both easier and better to stick a distro circuit in with a DB.

Ok, but I’ve got the impression that this will be fed from a regular DB, so it’ll be fed by an mcb and you won’t achieve discrimination.

 

[hightower]

[


Ok, but I’ve got the impression that this will be fed from a regular DB, so it’ll be fed by an mcb and you won’t achieve discrimination.

It's no different to a multitude of other installs I've come across where a distribution circuit is protected by a 32A breaker and then feeds a 20A socket circuit and a 6A lighting circuit.

EDIT: Sorry, thought this statement needed clarification as didn't mean it to sound like "X done it so why can't I?"

Discrimination between MCBs is going to be hard to achieve. So what's the way out, fit a larger cable to be able to fit a larger MCB? Fit a different type of protection?