Cable to outbuilding

[spark1]

If there are any mettalic pipes or other extraneous conductive parts [metal structures in contact with the ground],then the minimum size cable will have to be 10mm2 ,unless you TT the installation in the outbuilding.



spark1

 

[Mac]

If there are any mettalic pipes or other extraneous conductive parts [metal structures in contact with the ground],then the minimum size cable will have to be 10mm2 ,unless you TT the installation in the outbuilding.



spark1

Why would you do that.The Op stated that the building is only a metre away from the house.Personally it doesn't need spiked and i would use the existing cable for the power and lighting by adding a spur for the lights

 

[alland1979]

Granted there is a 2.5mm there at the moment, but is it protected? open to the elements? if its a job and he wants to get repeat business he should do it in Swa. I accept it might be more costly but wait till the homeowner gives him hassle when the cable fails due to being exposed to the elements

 

[Mac]

Granted there is a 2.5mm there at the moment, but is it protected? open to the elements? if its a job and he wants to get repeat business he should do it in Swa. I accept it might be more costly but wait till the homeowner gives him hassle when the cable fails due to being exposed to the elements

If it's only feeding 1 socket,i'd pull the cable back to the point of exit from the house and put it in pvc conduit.

 

[spark1]

Macca . the outbuilding is remote from the existing main building.....be it 1m. or 100m. therfore if it is to utilize the existing fault protection of EEBAD [ADS],then the equipotential zone extends to the outbuilding which means 10mm2 bonds to any extraneous conductive parts whithin it. Alternatively the outbuilding can form its own equipotential zone by creating aTT system.............if no extraneous conductive parts then no problem !


spark1

 

[Mac]

Macca . the outbuilding is remote from the existing main building.....be it 1m. or 100m. therfore if it is to utilize the existing fault protection of EEBAD [ADS],then the equipotential zone extends to the outbuilding which means 10mm2 bonds to any extraneous conductive parts whithin it. Alternatively the outbuilding can form its own equipotential zone by creating aTT system.............if no extraneous conductive parts then no problem !


spark1

So what you're saying is,if you had a shed in your back garden with an existing supply already feeding a socket,you would still spike the shed.

 

[spark1]

If there where extraneous conductive parts insidethe shed and the supply cable was less than 10mm ,on a tncs supply,then i would probably run in a 10mm2 seperate bonding conductor from the M.E.T in the house....if this was not easily done then yes i would TT the shed........if no extraneous conductive parts then the problem does not exist.....The o.p doesnt say either way on this issue

 

[Mac]

If there where extraneous conductive parts insidethe shed and the supply cable was less than 10mm ,on a tncs supply,then i would probably run in a 10mm2 seperate bonding conductor from the M.E.T in the house....if this was not easily done then yes i would TT the shed........if no extraneous conductive parts then the problem does not exist.....The o.p doesnt say either way on this issue

Ok mate i give up.You win.Goodnight.Just about to watch Rollerball on Ch5

 

[spark1]

It wasnt a competition Macca..just trying to help the o.p.

..your team qualified for next seasons Champions league eh ! Congrats....Liverpool fan myself....will see you there

Goodnight !



spark1