All door openings from substation, electrical rooms, etc. Vertical shutters (like fire rated rolling shutters) may also be acceptable provided they are combined with a single leaf door opening outwards for exit in case of emergency. Designing a substation or switchroom requires careful planning and consideration of various factors to ensure the safety, reliability, and efficiency of the electrical system. The. Arrangement order: The circuit breakers should be arranged from left to right, and the reserved position is generally placed on the right side of the distribution box. Wire color: The neutral wire is blue, and the color of the phase wire (A phase is yellow, B phase is green, and C phase is red). - The doors of the distribution room and static compensator enclosures should be reliably connected to the protective conductor using copper core flexible wires with a cross-sectional area not less than 4mm². If the box is wider, the doors can be opened in. These boxes feature bottom entry and exit cables, front-opening doors, and main busbars connected with copper strips for optimal contact. Secondary distribution boxes, also.
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