About 12 years ago when I installed my electric shower I did all the plumbing
and cabling and got Scottish power ( It was SSEB then ) to do the final
connection .The guy came and did the job but commented to add an additonal earth
cable from the shower to the CH radiator and then back to the Scottish Power
earth terminal beside the consumer unit . This I did and it has remained that
way ever since .

I have just replaced my shower with a 10.5 one and was unable to get the circuit
earth and this extra earth cable in to the cable connector ( The previous shower
had a stud and nut connection arrangement ) so I have left out the additional
earth between the earth and the radiator . It set me thinking why this extra
earth was necessary in the first place and also about the earth from the
radiator as well. Should I leave things as they were before ( Using thinner
earth cable betweeen shower and radiator to allow it to get in to the connector)
or what does anyone suggest ?


Stuart