Connecting a shaver point to a shower circuit.

[ChrisElectrical88]

Hi. I want to install a shaver point in a bathroom for a fussy landlord, but she only wants it to be used when the shower is on, not sure why. I am going to wire it off the shower circuit and cut down the cores so I can fit them all in 15A connector blocks in the loft. Is this ok? If not what regulation prevents thing?

 

[spark 68]

My interpretation of 434.2.1, is its more for busbar sytems with local switch fuses, and such like systems.

Not at all, it does not mention busbar systems at all, it just says conductors, albeit it does get used on those systems because it has to.

 

[HandySparks]

Appendix 15

Fig 15a

(iii) connecting cookers, ovens and hobs with a rated power exceeding 2kW on their own dedicated radial circuit.

So, are you saying that you wouldn't supply an oven and a hob from the same circuit?

 

[Plonker 3]

Lots of variants in that statement?

What size (kW) are the oven and hob?

 

[HandySparks]

Lots of variants in that statement?

What size (kW) are the oven and hob?

Whatever's within the capacity of the supply arrangements. I'm just looking at the principle of two loads on a 'dedicated' circuit here.

 

[Simlec]

There are none so blind as those that won't see.

I have used this rule to good effect by tapping off the cooker supply point to supply a cooker hood fused down to 3A with an FCU within 3m, wired in 1.5mm, tell me what regs I have broken ?

What's your views regarding 434.2.1 (iii) ?

My view would be if you are going to use T+E in a domestic environment, then your cable should be in metal conduit/trunking. To satisfy the fire risk.

What do you think?

 

[spark 68]

What's your views regarding 434.2.1 (iii) ?

My view would be if you are going to use T+E in a domestic environment, then your cable should be in metal conduit/trunking. To satisfy the fire risk.

What do you think?

I would think chased into the wall and plastered (in the safe zone) would cover that wouldn't you ? we are talking here of a run of about 4ft

If you are talking about busbars then we used DI cables when panel building.

 

[Simlec]

And Stud wall (Woden)?

 

[spark 68]

Come on, we are talking here of horses for courses, I would do a RA to see what was suitable in a given situation.

These set of regs have their uses, and they may not always be the best solution, but are very useful at times.

 

[Simlec]

Come on, we are talking here of horses for courses, I would do a RA to see what was suitable in a given situation.

These set of regs have their uses, and they may not always be the best solution, but are very useful at times.

That's fine buddy just wanted to see how you felt about the risks.

 

[Silly Sausage]

My view would be if you are going to use T+E in a domestic environment, then your cable should be in metal conduit/trunking. To satisfy the fire risk.

I'd be reviewing my design methods if I was considering things like that!

 

[Simlec]

I'd be reviewing my design methods if I was considering things like that!

In what way pipe

 

[spark 68]

I like these Threads, it at least gets you thinking and makes you look a bit deeper into the regs.

It also makes interesting reading others thoughts on things, I was quite surprised at some of the attitudes of some other sparks though.

As I said these methods may not always be the best for all situations, but can offer a viable solution in some cases.

Interesting discussion all the same

 

[Simlec]

Indeed, have used 434.2.1 many times but just not in a domestic environment, never needed to.

 

[spark 68]

Hi Simlec, I have mainly used it for cooker hoods in domestic, as typically the customer adds this in at the last minute, usually after all the plastering/tiling/decorating has finished. lol

Usually I have asked the question during the quoting stage, and then they still ask at the very end. These regs have gotten me out of the poo more than once.

If it was planned for then there is no need, unfortunately usually it is after the kitchen fitters have finished, or on a partial refurb, or more usually after the kitchen fitters (or customer) has dramatically altered the layout without telling me until it is too late

 

[Silly Sausage]

In what way pipe

Any fool can design a 100% safe Install, when they've got unlimited funds.
This is what being an Engineer/Designer is about, reaching a compromise between perfection and cost.
This is why all the regs etc. exist, so one can design a safe system within tolerable financial limits.