Down to Earth
05 December 2011
Cradle maintenance is an every day event to Rotrex engineers.
Clients rely on their BMU equipment being servicable to enable the building clean schedule to be maintained. When a cradle fault is reported to the building manager on his comapny’s flagship site during window cleaning operations, the repercussions are felt far and wide.
Rotrex engineers were summoned to such a call out during October. The client reported that the cradle was consistently tripping the RCD breaker. Attending engineers checked the usual suspects – winches and control cabinet, which both tested OK. The investigation then shifted to the cradle control wiring, and it was noted that the outer insulation had been chaffed down to the wire braiding as it entered the connection box, causng the current to go “down to earth”.
A temporary repair was made to return the cradle to service and recommendations to permanently rectify the fault were made to the client. The building manager was able to continue with the exterior clean, and his state of anxiety was, like the the current, lowered “down to earth”.