Power Panel & Switch Board Cabinet
Power Panel & Switch Board Cabinet
Description :
- The Power Panel & Switch Board Cabinet (SBC), as per RCF/RDSO standards, is an integral electrical enclosure used in LHB-type AC coaches (EOG/HOG), designed to house power/control switchgear systems.
- These cabinets manage functions such as coach lighting, air conditioning, pantry operations, pump control, sanitary systems, and public-address systems.
- The design ensures reliable performance under demanding railway conditions.
- It operates on a 3-phase supply.
- Rated for 750 V, 50 Hz supply.
Technical Specifications :
| Construction & Materials | |
| Frame & Body | TIG-welded steel tube structure; 2 mm CRCA front doors; 1.6 mm stainless steel bottom doors; 1.2 mm CRCA side panels |
| Visual Protection | 4 mm transparent, fire-retardant polycarbonate sheet at critical cut-outs |
| Internal Layout & Mounting | |
| Wiring Protection | V-grooved rubber grommets, sleeves, PMA end fittings, polyamide trays, halogen-free braided cable protectors |
| Layout | Multi-layered interior with neat cable routing and segregation of voltage levels |
| Switchgear & Accessories | |
| Accessibility | Front-accessible switchgear and components for easy maintenance |
| Compliance | Rotary switches conform to IEC 60947; meets RDSO specifications |
| Devices | HT fuses, 750 V MMRs mounted on epoxy/Bakelite/SMC sheets with ≥100 mm separation |
| Safety, Labeling & Earthing | |
| Earthing | 70 sq mm × 300 mm braided copper cables at diagonal corners; inner parts earthed as per IS:8623-1993 |
| Safety Measures | Proper labeling, interlocks, segregation of voltage levels |
| Standards & Compliance | |
| Standards | IEC 60947; IS:8623-1993 |
| Fasteners | Stainless steel (internal) and zinc-plated/passivated (external) per IS standards |
| Lifting | Eye bolts at four top corners for safe handling |