Electrical DB installation

The electrical DB (distribution boards) for high-rise office installations shall be non-ventilated, naturally cooled, metal enclosed type, flush fronted and suitable for front access and shall be built to comply with IEC 60439-1. All louvers shall be covered with wire mesh.The distribution boards shall contain MCCB (moulded case circuit breakers), MCB (miniature circuit breakers), RCD (residual