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............and have you seen the age of those sockets? Heavy load, mucky socket contacts, high resistance, increase in heat, transfer of heat to conductors.

Erm..... Yes. Basic questions such as? Thinking back you may be referring to debates and the search for written confirmation rather than people's opinion. I'm just some numpty who they can a job to when I drove past in my bus one day. Anyway.. We've offered them a free seat on the Feb10...

You're a hard man dingers! Out of 16 candidates this year I have only had 5 pass the theory. :O Practical, we are 100% but I had to get a second assessor check one lads PFC/ Ze testing and general live testing.

The next exam will probably be next month or two. We closed so that the folks coming from North of Newcastle can get home. It was the same again today. Early finish. We got one lad who came from London for it. Last week he was up for his 2382 but he failed >.<

Ahh no. The exam is always on a Thursday night (6.30-9pm) and it is a National event. Everyone sits the same paper at the same time so there can be no swappings of informations and photocopies of foots, etc :D

lol ?? :D :D

Is there anyone in training who has been affected by the snow this week? We had to close our training centre yesterday losing half a day on the 2391-10. We had late arrivals and only 6 out of eight turned up. One lad turned up today making 7. The course can't be postponed as the exam time is...

What size feed?

In Devon?? As if :D Thats where Arthur served his apprenticeship Arfur Day

Which makes sense with regard to boats in marinas and rides and stalls and such in fairgrounds. The mobile equipment used in such installations cannot be verified for safety. Thanks dudes.

Oh yeah, I've seen your numbers in a telephone box in Soho :D

OK, so where there is no return path or zero potential the potential difference of the line supply will pass through, say, a lamp filament and through the caravan neutral bar. So 230v on the neutral bar. This in itself is bad, agreed. Do caravan installations connect the structure to neutral...

Agreed. There.. it's out of my system now :D Thanks

They wouldn't but the thing I am not grasping is: The logic seems to be that connecting the protective conductor of the caravan sockets to the PEN conductor is breaking statutory law because the PEN conductor might be broken. So why is connecting to a TN-S system any better when the...

Yeah, you see! It's ludicrous :D

Yeah, but that is a deliberate act of vandalism and I'm sure you would agree that it is a lot easier to steal a separate protective conductor leaving the installation condition in the same situation?

So for a 20m cable run where a cable is grouped with 4 circuits for the first 10m and 9 for the second 10m we assume the circuit is grouped with 10 circuits.. but For a 100m run of XLPE armoured that passes through a thermally insulated wall with a thickness of 50mm we have to assume the...

Apologies. Concentric http://www.diynot.com/wiki/electrics:cable_types:concentric_type_cables_straight_concentric_and_split_concentric From our very own wiki. So, because in the extremely unlikely event that the entire neutral concentric conductors are all broken, and the distributors...

The restrictions on a PEN conductor though, having to be a split concentric cable, making a broken neutral being virtually impossible. Wouldn't thte best situation be provided by a direct connection to the suppliers facility? But if there arrangement is TN-S then it is permitted to connect...

What's the deal with not being permitted to connected caravan pitch sockets' protective conductors, for example, to the PEN supply? Same for fairgrounds, marinas, etc.