Other equipment
Electrical refrigeration defrost systems can
raise electrical heating coils built inside the
refrigerator to 600°C, introducing an ignition
source. Measures to reduce the fire risk include
temperature probes and cut-offs.
Spray driers for converting liquids to powders
and other dried products can produce fire and
explosion hazards by ignition of the powders
and dusts or by spontaneous combustion.
Measures to reduce the fire risk include regular
removal of dust deposits, explosion venting,
automatic suppression systems, and electrical
safety including grounding and bonding.
Conveyor systems can provide an ignition source,
by heating due to friction, bearing seizur
e and static charge. Conveyors often penetrate walls
and occassionally ceilings and can compromise
fire separation. Hydraulic conveyors can
significantly increase the fuel load. Measures to
reduce the fire risk include: regular maintenance
of belts and drive motors, monitoring of bearing
temperature and belt slip, bespoke conveyor
closure devices and automatic suppression systems.