AS/NZS3000:2007 (which has now been replaced by the AS/NZS3000:2018 standard) discusses the earthing requirements in Section 5.

Below we discuss the key points from this section:

- Any conductive reinforcing within a concrete floor or wall of a room containing a shower or both shall be bonded to the earthing system of the installation.

- An equipotential bonding conductor in accordance with 5.6.3 (not less than 4mm2) shall be connected between the reinforcing material and any part of the earthing system.

- Missing this work during the construction foundation stage and then the non-existence of this bonding requirement picked up during the electrical inspection, can be very costly.

All Active Branches are able to suppy 6 or 10mm2 equipotential bonding conductors which are exothermically welded to a stainless steel rod and supplied with clamps for this purpose.

This is a cost-effective and extremely practical way to do this bonding.