Page 24 - Critical Control flipbook_Neat

CRITICAL CONTROLS

Coal Mill Explosion

Hazardous Areas Management

Minimize ignition source by having certified equipment with corresponding

protection level in the classified hazardous zones.

Area and equipment marked Required inspections Access controlled and
with ‘explosive atmosphere’ completed and maintenance hot work prohibited.
(Ex) and hazard signage. carried out.

Hazardous Area
Risk Assessment
Inspections
• Area/zone
clarifi cation
drawing
• Explosion
protection
documentation
3m

3m
3m 3m 3m
3m
3m
3m 3m 3m
3m

Pulverized coal
silo
Fine coal spillage
Ensure good
housekeeping

DANGER

NO ENTRY
NO HOT AUTHORISED
WORKS AREA PERSONNEL ONLY
Zone 20

Zone 22

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