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Battery Switch Units For Jubilee Line Extension
PB Design and Development, the Bristol based power specialist, has recently supplied 110V Battery Switch tripping units for the Jubilee Line Extension Project. The Company worked closely with Alstom Drives and Controls on the installation, which involved the installation of units in sixty-three underground sites.

PB Design supplied its 1500 Series of self contained Constant Voltage Battery Chargers with full monitoring facilities and low maintenance nickel cadmium cells. The equipment has a design life in excess of twenty years and has been manufactured in compliance with the relevant British and International standards, using low smoke and zero halogen materials.

The company was required to verify the performance of its equipment by producing computerised statistical evidence on both reliability and maintenance. The compliance and production of this project documentation is widely recognised as one of the most demanding tasks that a major contractor will experience.

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