Check the electrical load and ensure that the sensors do not exceed the 10 Amp maximum. LV Intrusive Switchboard Low-voltage intrusive switchboards regulate and distribute power in buildings and facilities. Power distribution & circuit protection depend on it. While drawing from several sources, as noted in the standard itself, it addresses four basis points regarding electrical. Check for signs of corrosion or rust. Inspect for any physical damage to the enclosure. Ensure that all labels and warning signs are legible. Electrical Inspection Checklists (Checking, Verifying and. A 3 Phase Electrical Distribution Box is vital in managing high power demands in industrial setups, events, and commercial buildings.