7.3.11 Functionally grounded arraysAll PV conductors in a functionally grounded array shall be treated as being live parts with respect to protection against electric shock.NOTE The intent of this requirement is to ensure that the functionally grounded conductor is not assumed to be at ground potential during evaluation of insulation coordination aspects such as clearance to ground etc., because its connection to ground does not comply with the requirements for protective bonding in Part 1.8 Protection against mechanical hazardsThis clause of Part 1 is applicable.9 Protection against fire hazardsThis clause of Part 1 is applicable with the following exceptions:9.3 Short-circuit and overcurrent protectionAdditional subclause:9.3.4 Inverter backfeed current onto the arrayThe backfeed current testing and documentation requirements in Part 1 apply, including but not limited to the following.