Oil / Air Cable box bushings
The Oil / Air range of cable box bushings are designed in accordance with EN50336, this is an updated version of the historical standards BS2562 and BS6435. All bushings manufactured by BTRAC also comply with IEC 60137. A range of bushings are available up to 36kV 4 000A. If higher voltages or currents are required we can offer resin impregnated condenser bushings to meet your exact requirements (please see relevant product page).
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 there electrical characteristics (specifically creepage distances) are based on their working conditions. If outdoor bushings are used within a cable box it will result in a physically excessive termination arrangement.
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Typical 12kV Oil / Air cable box bushing |
