Garden circuit design

[ackbarthestar]

Just to add. It is unwise to install M/C equipment outside the EPBZ particularly on a PME system. Mind you it doesn't appear to make much difference as you're all having fun getting poked by the suppliers floating neutral voltage.
As it is going to be hot today, why not get the hose pipes out and spread a bit of water

 

[skamuk]

I told him to get the council out as it is their responsibility. I'm not going to start re-wiring his house! Council are due round on monday, they can test and inspect and deal with the problem as it's their job. I'm not a registered electrician I have just completed my 2365 L2 at college. I only did the job as he is a relative. He tells me hes had electric shock from a socket and light switch within the house before and the rcd socket in the kitchen has never worked, he has always been aware of dodgy wiring but didn't think to tell me before I installed the garden stuff.

My additional circuit/spur has been isolated for the time being until the council sort out the problem.

I realize now that I should have tested the house wiring first. My mistake!

Can I ask why it is un-wise to install metal clad in shed outside? I figured it would be better mechanical protection and stronger connection of SWA without need for metal JB to terminate SWA into. If I had used plastic he wouldn't have called me informing me of a problem as he wouldn't of got a shock!

Its funny that everyone here criticizes me for being in the wrong but you were all convinced that an RCD spur can't be tripped on the FEED side, leading me to believe that the RCD was FKD not the system in the house! I came here for advice, no-one advised me to test the house before installing.

I didn't come here for a debate, just wanted to inform you that RCD spurs can be tripped by supply.. I'm staying away from electrical work until the day I start my apprenticeship as its not worth getting things wrong! You live and learn. Thanks for your feedback

 

[ackbarthestar]

Was quite funny watching him demonstrate how he gets the shock (standing on the grass with no shoes on and even funnier watching him try to get one (after explaining the science) when standing in the shed itself (insulated from the ground)!

So was he able to stand on the ground while touching the M/C RCD socket/FCU or was this some fictional anecdote?

Can I ask why it is un-wise to install metal clad in shed outside? I figured it would be better mechanical protection and stronger connection of SWA without need for metal JB to terminate SWA into. If I had used plastic he wouldn't have called me informing me of a problem as he wouldn't of got a shock!

A 2.5mm2 SWA will terminate perfectly well into something like a masterseal IP rated box and it means you are not exporting an exposed conductive part where you are very likely to get microshocks.

Of course, the more insulation there is between you and the ground the less of a shock you will experience.

So for a PME installation the MET earths will be connected to the supply neutral where the voltage will float depending upon the neutral length and loading downstream

 

[skamuk]

So was he able to stand on the ground while touching the M/C RCD socket/FCU or was this some fictional anecdote?



A 2.5mm2 SWA will terminate perfectly well into something like a masterseal IP rated box and it means you are not exporting an exposed conductive part where you are very likely to get microshocks.

Of course, the more insulation there is between you and the ground the less of a shock you will experience.

So for a PME installation the MET earths will be connected to the supply neutral where the voltage will float depending upon the neutral length and loading downstream

When he touched any of the M/C in the shed whilst stood on the grass, with just socks on, he got a shock. My uncle is a nut case and demonstrated more than once that he receives electric shock!! When he stepped into the shed which happened to have an insulation board laying on the floor, he received no shock at all, no matter how hard he tried.

I need to do some more research on PME as i find it hard to understand. I still don't understand why the E is taken from the same point as the N... I expect more lessons on this in 2365 L3.

Have just found this but have had a few beers and am now off to the pub garden for some more as the sun is beating but will have a sober read tomorrow.

the plastic masterseal box makes sense but to me is just hiding the problem that exists in the first place.

Thanks for the help and information.