Busduct / Busway Systems
Busduct / Busway Systems
Compact sandwich-construction and air-insulated busduct rising mains, in copper or aluminium, for high-rise commercial buildings, data centres and industrial plants where cable runs would be impractical.
Sandwich & air-insulated construction
Sandwich busduct uses tightly stacked, insulated conductors in a compact aluminium or steel housing for high short-circuit performance, low impedance and low voltage drop. Air-insulated designs are used where high ambient or specific maintenance access is required.
Standard sections & fittings
Straight lengths, elbows, tees, expansion joints, end-feed boxes, plug-in tap-off boxes and flanged ends — engineered as a complete system from incomer at the substation to riser ends in the building.
Tap-off & distribution
Plug-in tap-off boxes with MCCBs / fuse switches allow distribution at every floor or load centre, swappable under safe-isolation procedures. Boxes are mechanically interlocked with the busduct housing.
- Copper or aluminium conductor
- IP54 / IP55 housings as required
- Floor-mount supports with seismic restraint
- Fire-barrier sleeves at floor crossings
Type-tested performance
Short-circuit, temperature-rise and IP-degree type tests at accredited laboratories. System impedance and voltage-drop calculations supplied at engineering stage to support load-flow and protection coordination.
Typical Ratings
- Rated voltageup to 1000 V AC
- Rated current630 A – 6300 A
- ConductorCopper / Aluminium
- Short-circuitup to 150 kA peak
- IP classIP54 / IP55
Standards
- IEC 61439-6 (busbar trunking systems)
- IEC 60529 (IP)
- Type tests at CPRI / accredited labs
Typical Applications
- High-rise commercial towers
- Data-centre power distribution
- Industrial process plants
- Hospital infrastructure
- Airport & transport hubs
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