Completing a domestic electrical installation certificate

[Colin Salter]

It asks for type of wirering what do i write only room on form for one letter

 

[professional]

Have used pvc/pvc double insulated throughout except for feeding garage I used steel wire armoured in the house I used a rating factor of 0.5 because of insulation in most cases the insulation is one side of the cable

Twin and earth cable is NOT double insulated.

 

[westward10]

What is it your are confused with the cable type codes or the fact you wish to put more than one code in the column.