Hi All
I've come to do some work at a property which has no bonding to the gas or water supply. These services enter the house on the other side to the electric supply/CU. Supply is TNCS.
Question is can I run a single 10mm cable around the outside of the house to link to both gas and water supplies. If so can I use a black cable (with green/yellow sleeve at either end) and clip direct to the wall or does it require additional mechanical protection?
Thanks in advance ?
