Installing a elec shower, query about the earth.

[sam6555]

Okay, we bought a new power shower to replace our old one and there is a seperate 4mm earth running along side the 6mmT+E. Thing is the single earth isn't long enough to reach the terminals. We were going to join another bit of cable on the end using a terminal block so it will reach.

My question is, does it matter the size of the earth, as in can it be any size as long as it is thicker than 4mm? I can join some 6mm cable on the end, but we have no 4mm.

 

[BigJon]

yep, should be fine.

 

[Chri5]

The separate earth is likely to be for 'olde' supplementary bonding.

If the shower circuit is rcd controlled and the house gas / water bonding been done in 10mm earth you have no need for the cable to be reconnected.

I take it the 6mm cable has an earth + LN cores.

 

[sam6555]

The separate earth is likely to be for 'olde' supplementary bonding.

If the shower circuit is rcd controlled and the house gas / water bonding been done in 10mm earth you have no need for the cable to be reconnected.

I take it the 6mm cable has an earth + LN cores.

Yea, 6mm T+E. It's allwired and piped in now and works as it should ;D Thanks guys.

Also, I connected both that single earth aswell as the earth in the T+E cable to the shower, no harm can be done...right?

Thanks. ^_^

 

[wingcoax]

You can't have enough earths.

 

[spark1]

The separate earth is likely to be for 'olde' supplementary bonding.

If the shower circuit is rcd controlled and the house gas / water bonding been done in 10mm earth you have no need for the cable to be reconnected.

I take it the 6mm cable has an earth + LN cores.

Chri5 . The Supp Bonding will still need to be connected unless ALL the circuits in the bathroom are RCD connected------not just the Shower.

spark 1

 

[RMS]

You must also confirm that all extraneous conductive parts in the bathroom are effectively connected to the protective equipotential bonding.