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It suggests that a lack of discussion at higher levels particularly in the case on CNE which is very prone to loss of neutral/earth. If you think of cable design, the original 4core was: - 4 cores (copper and later aluminium) with paper insulation an outer belt baper insulation surrounding the...

Well I'll tell you what, in 43 years in the industry, and still counting. I am only aware of a few instances except in PME systems, of the neutral coming live, in each of those cases it is where the earthing has been stolen from substations! I do not, or have not heard of any instances where the...

The OP was originall talking of running a 10M length of SWA from the meter to the CUs The 3 m limit has been pointed out so the OP is now talking of fitting a switch fuse at the meter position which he must. This means the tails are under 3m so that is the only bit the DNO is interested in and I...

The DNO definition of Live, so live conductor is "Electrically Charged" So to us a neutral is not live in any way. Yes it can become that in fault conditions, but in reality that is hardly common so classing it as a live conductor seems rather confusing

Depends on the DNO I would think that less than 10% or ours are below 25mm2, Even a 16mm2 cable is rated at over 100A on our networks So using 25mm2 for the tails from the meter to the switchfuse covers all eventualities. The cable from the switch fuse to the CUs is part of the installation...

The only neutral faults we experience are on CNE (PME, TNCS) systems, where it seems the neutral should not be classed as live The restriction is for between DNO networks and earth, not between a DNO and a 3rd party earth

How can it be classed as live just because it carries current, live in respect to what? Not earth as it is mandated that it should be connected to earth Does it say that in any standard in use by electricians or any book about how to work to any standard?

Tell you one thing, in terms of the supply industry, the neutral is never referred to as a live conductor. It is well understood that in terms of electrical theory it has to carry current in a lot of circumstances ESQCR says: - (3) A generator or distributor shall, in respect of any low voltage...

Which is totally daft as the neutral in the UK is connected to earth any way so cannot be live

In reality it is common to get a number of combinations based on load and capacity Single phase with one fuse - the most common Single phase barred (busbarred) with 2 fuses to use the higher capacity of the service cables and cut-outs Single phase with two service cables on the same phase and 2...

As post above, maximum tail length is 3m

Ah, fair comment. Fortunately the vast majority if companies round here have got the safety point and abide by all the required processes working near both underground cables and overhead lines. It's often the untrained house owners that tend to get it wrong

I'm still trying to work out how this applies to a houseowner working in his own garden, or the previous houseowner who probably installed the cable. The HASAWA does not apply in these circumstances BTW the alkathene was probably black as was used years ago for water services

The Accles and Shelvoke spiker needs some training before use as it can be dangerous. It also needs special adaption to use on small diameter cables. Not the sort of thing a house owner would ever use.

Sorry BAS missed this Apparently, but advised to visit A & E for a check over (standard advise we give in this case) As regarding prosecution. Householder working on own property so we have no jurisdiction and certainly Pre Part P introduction

Better than laying it in alkathene water pipe I would suggest it was laid some time before Part P even existed Not sure, the colleague that visited the site didn't mention it

After the stop tap no

This is one we should all know! We got a call about a customer that had been laying a new water pipe to his house, saw a pipe in the garden and thought it was the one he wanted So he cut it! And it went bang and he got an electric shock! It was phoned into us as it was thought to be the...

Get one of these instead. http://www.amazon.co.uk/solar-phone-charger/s?ie=UTF8&page=1&rh=i%3Aaps%2Ck%3Asolar%20phone%20charger

More correctly, the total current cannot be higher that in the incoming cable which with DNO interpretations of current capacity is acceptable. That the incoming supply could be overloaded is possible but the same could be said of most incoming cables