Just want to relate this to you people.
Upon a Faults call tonight, as part of sectionalising a block of 4 roads, I had an ABS(Air-Break Switch) explode and rain down on me.
Had I not been wearing my Fire Service bunker coat and Helmet+ visor at the time, I'd be in hospital now.
These ABS's are made for dropping loads and can also be closed on load too.
This must be one of the faulty batch that were made in the late 1980's, along with the Oil-filled Earth switches, that fire hot oil at you, if you shut them too quickly!.