When conductive pool shell structural reinforcing steel is not available, what is the minimum copper conductor size required for perimeter equipotential bonding?

The minimum copper conductor size required for perimeter equipotential bonding when conductive pool shell structural reinforcing steel is not available is 8 AWG. This requirement is derived from the National Electrical Code (NEC) guidelines, which specify bonding conducts in swimming pool installations to prevent electrical shock hazards.

Equipotential bonding ensures that all conductive elements within the vicinity of the pool maintain the same electrical potential, thus reducing the risk of electric shock to individuals who may come into contact with the water or surrounding areas. The NEC mandates a specific minimum size for copper conductors used in this application, which is based on factors such as the degree of protection needed and the potential for fault currents.

In this context, choosing 8 AWG reflects a balance between adequate conductivity and manageability in installation. It is essential for ensuring safety around pool areas by properly integrating the bonding system. Larger sizes, like 4 AWG, may be unnecessarily robust for this specific situation, while smaller sizes such as 10 AWG would not meet the safety requirements set forth by the NEC.