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Does this count as High-Integrity earthing? I don't know you had better ask BAS :D. BTW - hasn't twin twisted flex been banned yet :shock:

This is a large additional load on a domestic supply - have you contacted your supplier to get their permission to install it. Supply agreements generally require that you declare any large additional loads before they are installed. A 12kw load can cause noticeable effects on the local...

Well your comment appears to me to support sercuresparks's assertion that I follow some unsafe working practice - in his opinion because of my age, and as I read it, in yours because of a lack of training and self discipline. Now if I have misunderstood that then I apologise. In my opinion...

Well, see above says it all - I had a higher opinion of you - obviously misguided.

What are you talking about :evil:. Show me exactly where in my post that I have advocated any dangerous working practices that would be against the requirements of EWR Regulation 14. I have not at any point suggested live working. I have merely pointed out that so called 'safe...

Yes I hang the odd door, lay floor tiles, etc. etc. :D As for electrical installation work - I was 'qualified' when you were probably still just a twinkle in your daddies eye. :D Qualifications and training - (started 1965) - Indentured apprentice, C & G: A; B; C; T4; T5; Electricians'...

:wink: 8)

securesparks said: Oh is it. If you lock off the main switch in a small installation you probably will achieve your aim. I could make up some scenario about supplies from next door, but let's not. So you will adopt this approach in, say, your local comprehensive school will you -...

According to that font of all knowledge WIKIPEDIA. Electrocution is also frequently used incorrectly to refer to any electric shock received. However, non-fatal exposure to electricity is referred to as electric shock. So would you hear yourself scream :lol:

Spark123 said: Which tells us that there is no such thing as 'safe isolation', and the sooner people stop believing that there is the better. Borrowed neutral faults, particularly between different distribution boards, lie in wait for the unwary. Such a fault may be masked by a neutral...

£35.00 that's good, but what about the £2000.00 for adequate professional indemnity and product liability insurance, and the costs of 'type testing' etc. to ensure any applicable standards have been met. Then there is public liability insurance, etc, etc - I think £250.00 was quite cheap for...

BAS I agree that you cannot mount the die in the stock the other way around. However, you can run the die onto the thread the other way around. The thread would have to have been cut in the normal way first as - whilst a reversed die will cut - it is very difficult to make it start a cut, as...

BAS the die can be run onto the thread the other way around. Its a bit tricky to get it started, but you can do it. However, the die has a small taper that therefore normally cuts a tapered thread - reversing it destroys this. The socket starts to tighten on the taper as it reaches the end of...

As others have said it looks like some swarf is clogging the cutting thread on the die. If you were doing hundreds of these you would probably accept these threads with just a small improvement. If you want 'perfection' you will probably have to run the die off every few turns and clean it...

Try this http://www.trainingskills4u.co.uk/pages/city+and+guilds+a1+award?gclid=CLq26N7vwpsCFUoB4wodTDKaDg

I designed an installation for a very large property recently. The supply is via overhead lines but the client was promised PME if he handed over loads of wedge - which he duly did. Its on the end of a line in a village and it is supplied from a fairly small transformer. Come the day of the...

The 0.35 figure is, as you say, a maximum. It was based on a typical small transformer and a certain length of radial main. I think it was 300kVA and 500 m of 95mm² but i haven't checked that. Edit: That is probably more like 100 m :D.

ericmark said: No you can't get away with that one :D. You have taken part of a sentence from one clause 314.1 (iv) and then applied it to the whole regulation. In fact it only refers to the normal operation of RCDs.

The car has a small electrical system and it would only reference earth if a fault to earth occurred. Note that in BS 7671 - if electrical separation is used for more than one appliance it must be supervised - this is because a first fault would earth reference it. If a system is not using...

Spark123 said: I referred to large power systems - small ones are not usually a problem. As for the car - I am old enough to remember earth straps and chains being used to try and prevent static. Go to your local petrol storage depot - is Buncefield anywhere near :D - you will see the...