Capacitance Bushings

S.R.B.P Bushings

Condenser bushings are manufactured from bakelised paper providing a high degree of thermal stability and low dielectric loss characteristics combined with good mechanical strength and resistance to water. Thin metallic layers, which are inserted during manufacture, provide conductive layers to control both axial and radial stresses.

Properties Include :-Good Dielectric Strength, Low Water Absorption, Low Weight

Bushings may be fitted with Aluminium or Brass flanges and, in some cases a "Tap" may be taken from one of the foils to provide a feed for a circuit protection device or for live line indication. Termination may be threaded, plain, milled or stamped to suit the application. Where there is a need to fit ring type current transformers the foil layout can be designed in such a way as to provide the necessary length of accommodation. In some cases this area may be banded with tinned copper wire to provide added protection to the bushing surface. Capacitance bushings, for outdoor use, are normally sealed into oil filled porcelain shrouds.