Factors | Traditional Cable | Modern Busbar Trunking | Technical Comparison |
---|---|---|---|
Energy Efficiency | Low | High | Voltage drop |
Safety Features | Less | More | SC withstand capacity (25kA to 100+kA), Protection against fire, Combustive energy (80%less than cable) |
Service Life | Low | High | Average service life is >20 years |
Flexibility to Requirements | No | Yes | Load can be added and adjusted on the existing system |
Installation Cost | High | Low | Shorter installation time, less support and space required (30% saving) |
Aesthetic | Poor | Good | Compact in size and well finished surface |
Space Required | Large | Small | Single run for multiple circuits |
Mechanical Strength | Low | High | Metal Enclosure |
Investment on Material | Low | High | Payback period of avg. 4 years |
Specification | Option | BBT System |
---|---|---|
Type | Air-Insulated or Sandwich | Sandwich |
Voltage Level | 415V, 690V or 1000V | Max. Up-to 1000V |
Ampere Rating | 400A to 6300A | 400A to 6300A |
Conductor | Aluminium & Copper | Aluminium & Copper |
Phase Combination | 3P with 50%N or 100%N or 200%N with/without internal Earth | All |
Ingress Protection | IP-42, IP-54, IP-55, IP-65, IP-66, IP-67 and IP-68 | IP-54, IP-55, IP-67 and IP-68 |
Insulation | Air or Polymer or Epoxy | Epoxy Compound |
Enclosure | GI or Aluminium | GI and Aluminium |
Short Circuit Withstand Capacity | 25kA to 100kA | 25kA to 100kA |
Power Frequency Withstand Voltage | 2.5kV for 1 min. | 3.5kV for 1 min. |