Standard Distribution Box Incoming Line Requirements

Check for proper IP/NEMA ratings and material quality. Ensure safe placement: install in dry, accessible areas with good ventilation and at appropriate height (typically ~1. Practice good wiring: secure. Electrical power enters a distribution box through the incoming lines using what we call a five-wire system. Each of these wires has a specific, non-negotiable purpose: The Phase Lines : You've got three of these bad boys – A, B, and C phases. By convention, we use yellow for A phase, green for B. NOTES: LEGEND: 1. ALL DIMENSION ARE IN mm UNLESS OTHERWISE STATED. T PROGRAMMABLE TIMER WITH RS 232 INTERFACE UNIT 3. ALL ARCHITECTURE DETAILS TO ARCH'S APPROVAL. ALTERNATE CIRCUITING. Whether you have a new or existing facility, the single-line diagram is the vital roadmap for all future testing, service and maintenance activities.