Ensure safe placement: install in dry, accessible areas with good ventilation and at appropriate height (typically ~1. Practice good wiring: secure grounding, neat cable management, proper insulation, and correct wire gauge and breaker size. Include protection devices like breakers, fuses, and. Learn how to wire a distribution box step by step! This video shows real on-site footage of electrical installation, demonstrating safe and standardized wiring methods used by professionals. This serves as the primary source of electrical energy from the mains supply. An electrical distribution box, also known as a power distribution box, panelboard, or consumer unit. Following a detailed guide and knowing local electrical rules is important.