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Operation:
These evacuation lights are located along the escape
routes (egress) and linked together via a 2 core cable.
The
cable is used to power an internal relay which
disconnects the internal battery.
As
soon as the power is turned off to the supply (via the
surface), or the cable is damaged, due to an explosion or
rock fall, the light will automatically activate and guide
the
men out of the pit.
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