CEDASPE CBB-AA, Bushings used within a disconnecting chamber (before the cable termination box) or within a cable box

 

The Air / Air range of cable box bushings are designed according to EN 50336 and comply with IEC 60137. A range of bushings are available up to 36 kV-630 A. If higher voltages or currents are required resin impregnated condenser bushings can be offered to meet customized requirements.

It is important for the transformer designer to use cable box bushings as they have been specifically designed for use within indoor applications. This ensures that the electrical characteristics (specifically creepage distances) are based on their working conditions.

 

Technical Data

Rated voltage 12 kV – 24 kV
Maximum rated current 250 A – 630 A
Nominal creepage distance 185 mm – 300 mm
Standard reference EN 50336, IEC 60137 (formerly BS2562/BS6435)
Rod design Rigid Stem
Rod material Brass & Copper
Isolator material Porcelain
Special surface treatment Tinplating / Silverplating