Shatter-proof junction box for HV machine - has burst-open wall made of four joined triangular plates

摘要

The shatterproof junction box, for HV machines, has one of its walls removed and replaced by four triangular plates (4-7). The plates are welded or bonded along their outer edges to the rim of the box and are joined together along their adjacent edges by copper rivets (17) or weld seams or nuts and bolts. A sudden increase in pressure inside the box causes this sectioned wall to burst outwards -- the plates separating along their joins with one another and not with the rim of the box.