Standard for Equipotential Bonding Boxes
BS 7671: 2001 (incorporating Amendments No 1: 2002 and No 2: 2004) has requirements for protection against electric shock, and lists a choice of five basic measures which shall be used to protect against indirect contact. This guide explains the theoretical principles and practical implementation of measures for equipotential bonding and lightning protection of PV systems in general – and of S:FLEX mounting systems in particular – based on the relevant technical regulations. This is also how DIN VDE 0100-200 defines the term. Supplementary bonding is the practice of connecting two conductive simultaneously accessible parts together to reduce the potential difference between the parts. – Induced currents from lightning which could damage the electric equipment. Equipotential bonding conductors do not carry operating currents and. [pdf]