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The bus-bars are selected to meet the
continuous current rating & short circuit levels desired. The three
phase vertical bus-bars provided are to high-conductivity, electrolytic
grade copper as standard. These vertical droppers are provided in an
enclosed chamber which is located behind the feeder compartment.
The Chambr is
totally enclosed to prevent the entry of dust & vermin. The
vertical bus-bars are accessible only after the removal of the feeder
trolley & the fron guard. The vertical bus-bars are free of bolts,
holes etc. for connection & hence are maintenance free. FRP
vertical bus-bar supports are provided withing the bus chamber at a
distance of 100mm from each other.
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