Gallery, Projects and General > How do I??

Wire up off on and emergeny switch on my drill

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Twinsquirrel:
My workshop is 40m from the house and fed by a ring made from armoured cable buried 9" inches under the garden but for safety I decided to wire the ground/earth to a copper pipe driven about 5ft into the ground.

John Hill:

Twinsquirrel,  good move on the local earth stake! :thumbup:  However, is the neutral grounded?  If so is it grounded at the workshop or back at the fuse board?

Twinsquirrel:
Hi John,

Its' a long time since I did the theory but I think in the UK the neutral is grounded at the substation/transformer and SOMETIMES at the entry to the property.

All this is purely accedemic as it is now illegal for anyone without a current IEEE/IEC certificate to modify the wiring in any dwelling or business property. You can however install wiring etc and then have it checked by a current (no pun intended) qualified electrician who will sign it off before it is connected to the supply.

I could be wrong, it's a very long time since I had any proper education on this.

David

EDIT: The above doesn't apply to Stews mill as it is plugged in not hard wired

John Hill:
TS,  I dont understand why 'plug ins' should be exempt from wiring controls and inspections.  It is all too easy to transpose earth and neutral or neutral and phase at the plug or on the appliance.

Twinsquirrel:
John,

We have lots of wiered legacy laws over here, the law makers have tried to cut down on the number of accidents due to incorrectly wired appliances by stipulating the all electrical items are sold with tamper-proof plugs bonded to the cable. Stupidly this does not apply to extension cables believe it or not.

David

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