Report on the failed bus-bar chamber (type 36) removed from Kearnsey sub-station 16/9/86 (TM-EU-011)

It is concluded from the above evidence, that the failure of the MF 36 bus-bar chamber at Kearsney Sub-station was caused by the absence of one or more spring washers on the bus-bar, allowing a joint to relax. The failure may be regarded as an error in manufacture and there...