What type of conduit for outdoors lighting?

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I looked up what the difference is a few years ago, and it's just the voltage rating. 7 is 700V, 5 is 500V. Why you would need 700V on a bit of 1mm flex I have never worked out.
I would assume ,but know you guys would put me in my place if wrong !
that insulation would be beefier on the 700 volt ,however as you say when lesser voltage is used it doesn't matter.

I just get stuck on materials I use or like using ,things just auto pop into the brain 🧠. Habit I guess.
 
I just get stuck on materials I use or like using ,things just auto pop into the brain 🧠. Habit I guess.
likewise, I was after H07RN and the wholesaler only had H05RN, which I had never heard of at the time, so I looked it up as I wasn't sure it was fit for purpose. The insulation is the same material.
 
I would like to fit a couple of LED floodlights along the house external wall and have been given to understand that the electrical cable needs to be run inside of a conduit of some sort. I would like to ask what sort of conduit I will require in order to meet current standards please?
I would be happy to just clip it to the mortar joint with cable clips but I have been told that this would not meet regulations these days?

From the above comments I would hazard a guess that you have never read any issue of BS7671 wiring regulations?

And therefore do not understand the concept of designing every electrical alteration so that it will Always "FAIL SAFE"..
Rather than just "WORK"...?

Idjuts can make things work..
BUT..... Competent Persons will make sure that every thing that works will ALSO fail-safe!!!

just guessing?
😐
 
Blow torch the dampness out before putting the pot on, or as you say make it of indoors if possible.
Haha, I remember sitting with my finger on the megger for 10 minuets chasing the dampness out the ends. 😁
 
Does anything rule out plastic trunking with clip on lid and sheathed T&E inside it?

Common sense and 'good workmanship' -vs- 'something looking like a crappy DIY-bodge on the outside of the house'...
is the first reason that comes to mind?

Personally I consider plastic trunking as a last choice option on indoor wiring...
And on an external wall it is even lower down the selection list!!!
 
We use plastic trunking on every job, so it has its uses, ok so it’s not seen as hidden by a facia board, oh and the other plastic trunking is DADO trunking, have no problem with it If it’s what the customer wants…………….







But would I put it on an outside wall? Nah! Customer or no customer desire.
 
I would like to fit a couple of LED floodlights along the house external wall and have been given to understand that the electrical cable needs to be run inside of a conduit of some sort. I would like to ask what sort of conduit I will require in order to meet current standards please?

Just to add to my earlier comments you probably need to find better sources of guidance..

What you do need to do is ensure your choice of cable is suitable for any applicable "External Influences"..
e.g.
Movement, Mechanical damage, Water, Excessive heat, Chemicals, Sunlight, Plants, Animals... etc.. etc..

Providing the electrical integrity of your cable choice will not be impaired during its expected working lifespan,
then conduit may or may not be a useful solution...

REMEMBER..
a cable running along a wall less than 1metre from the ground could be susceptible to different "External Influences" than a cable run 6metres from the ground...

And a wall that gets little or no direct sunlight is also different to a wall that has several hours of mid-day peak sunlight during summer months!!

Appropriate cables / flexes can be clipped direct to external walls...
But you need to do your site assessments and cable selection correctly for the best results.
 
You are quite correct. I do not have access to or have ever read the actual BS7671 document. The cost of purchase (£90+VAT) is rather high in proportion to the cost of the materials needed for the job. I have seen various documents online that have BS7671 in the title, but seem little more than product brochures with a little technical information added. I am not an electrician, nor do I pretend to be one which is why I initially asked a couple of electricians to have a look at the job. One turned up and said he would send me a quote but I have not heard back from him despite a gentle reminder. I get the impression that perhaps the job is too small to be worthwhile for a professional electrician which leaves me with little choice but to attempt it DIY myself. I have done considerable work in electronics, however I am not an electrician and am not familiar with the regulations so am not assuming anything. I can only repeat what I have been told by people whom I would expect to be in the know. Incidentally, I would be willing to do the course and the qualification exam were it not for the fact that it costs a couple of grand! In any case, I would like the job done properly and safely which is why rather than just bodge it I came on here looking for advice, so please do not ridicule me for that!

I have not heard of H07RN previously, but agree that a flexble cable such as this would be difficult to tack neatly to an outside wall. On the other hand, from what I am understanding here, the twin and earth is not suitable to run outdoors un-shielded as the insulation might crack up eventually?

The lighting would be about 10-12 foot up the wall, so generally beyond the reach of an average person and most animals, although I guess it could still be got at by birds. The wall does get sunlight for some time in the late afternoon/evening, particularly in the summer so that may also be a factor to consider. The installation also combines with adding lights in the conservatory with a double switch next to the conservatory door, with one switch operating the conservatory lights, the other the external lights.

There is an alternative option which is to just replace the existing solar/battery powered light with a couple of new similar low voltage ones and scrap the conservatory lighting. The only problem with that solution is that the existing one lasted maybe a couple of years before the battery started to fail so I can't expect a replacement to fare much better. Mains powered would provide a more permanent solution.

The other choice is to do nothing. If the advice is NOT to do the job myself, then that is what I will do. I DO NOT want to risk any issues with the house insurance or safety which is why I asked for a quote from a qualified electrician in the first place.
 
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No risk to house insurance or electrical safety if you DIY but then get a professional ECIR.
 
Is that the same as the 'part P' notification? if so, then yes, I intend to have the work inspected and officially signed off (part P certificate issued) once done.
 
You are quite correct. I do not have access to or have ever read the actual BS7671 document. The cost of purchase (£90+VAT) is rather high in proportion to the cost of the materials needed for the job.
There should be no VAT on books, publications etc. Someone is trying to rip you off.

That said £90 is ridiculous for what it is.
 
There should be no VAT on books, publications etc. Someone is trying to rip you off.

That said £90 is ridiculous for what it is.
£/page BS 7671 is very good value for money.
The equivalent in mainland Europe is a lot more money.
Also in comparison with other British Standards, it is reasonable value for what you get.
 
£/page BS 7671 is very good value for money.
The equivalent in mainland Europe is a lot more money.
Also in comparison with other British Standards, it is reasonable value for what you get.
Agreed BS5266:1 is pushing £300 and that is a comic in comparison.
 
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