HAZARDOUS AREA CLASSIFICATION & SELECTION OF ELECTRICAL EQUIPMENT FOR FLAMMABLE ATMOSPHERES
Hydrocarbon Risks
Hazardous Areas-Definitions
COAL MININING SAFETY & CRUDE WAYS OF DETECTING METHANE GAS!!
Why Area Classification?
Why Zoning?
AREA CLASSIFICATION
HAC as per IS 5572 is not applicable for:
Zone 0 -Typical areas (Continous grade)
How to identify Zone 1 areas (IS 5572) ?
Zone 1 -Typical areas
Typical Zone 2 areas (IS 5572) ? (Secondary grade)
Safe Areas -Typical areas
HAC- Comparison
A FEW RELEVANT DEFENITIONS
HAZARDOUS AREA CLASSIFICATION-Guidelines
GENERAL CONSIDERATIONS
EFFECT OF AIR CURRENT
HEAVIER-THAN-AIR GASES & VAPOURS
LIGHTER-THAN-AIR GASES & VAPOURS
How to classify areas?
An experienced process engineers judgement in visualizing leak scenarios and classifying hazardous areas is the most CRUCIAL factor in the HAC exercise
API RP 500- HAC Guidelines
AREA CLASSIFICATION AS A TOOL FOR RISK ASSESSMENT A LOGICAL APPROACH
AREA CLASSIFICATION AS A TOOL FOR RISK ASSESSMENT
HAC-based Risk Assessment Matrix
AREA CLASSIFICATION AS A TOOL FOR RISK ASSESSMENT
COMPARISON OF ZONES & DIVISIONS
PERCENTAGE OF CLASSIFIED AREAS
HAC- A RECAP
HAC-RELEVANT INTERNATIONAL STANDARDS
USEFUL REFERENCE BOOKS ON HAC
SELECTION OF ELECTRICAL EQUIPMENT IN HAZARDOUS AREAS
SELECTION OF ELECTRICAL EQUIPMENT IN HAZARDOUS AREAS
TEMPERATURE CLASSIFICATION
GAS GROUP CLASSIFICATION (based on MESG & MIE)
GAS GROUP & TEMPERATURE CLASSIFICATION-VARIOUS GASES/VAPOURS (IS 13408 Part I)
GAS GROUP & TEMPERATURE CLASSIFICATION-VARIOUS GASES/VAPOURS
FLAMMABLE MIXTURE, MIG, EXPLOSION
RECOMMENDED PROTECTION METHODS FOR ZONE O
RECOMMENDED PROTECTION METHODS FOR ZONE 1
RECOMMENDED PROTECTION METHODS FOR ZONE 2
EXPLOSION-PROTECTION EQUIPMENT
EXPLOSION-PROTECTION METHODS / EQUIPMENT -Popular types
OTHER TYPES OF EXPLOSION PROTECTION- Not so popular types
EX d Type FLAMEPROOF EQUIPMENT
FLAMPROOF (EXPLOSION-PROOF) PROTECTION (Ex d)
FLAMPROOF (EXPLOSION-PROOF) PROTECTION (Ex d)
FLAMPROOF (EXPLOSION-PROOF) PROTECTION (Ex d)
FLAMEPROOF EQUIPMENT- CONSTRUCTIONAL REQUIREMENTS
FLAMEPROOF EQUIPMENT- CONSTRUCTIONAL FEATURES
INTRINSICALLY SAFE EQUIPMENT & CIRCUITS (Ex i ) Definition as per IS 5780
INTRINSICALLY SAFE EQUIPMENT & CIRCUITS (Ex i ) (insert a small photo)
INTRINSICALLY SAFE EQUIPMENT- Category- Ex ib
INTRINSICALLY SAFE EQUIPMENT (Ex i )
INCREASED SAFETY EQUIPMENT (Ex e)
INCREASED SAFETY EQUIPMENT (Ex e)
PRESSURIZATION TYPE (Ex p ) Definition as per IS 7389
PRESSURIZATION TYPE (Ex p ) TYPES
PRESSURIZATION TYPE (Ex p )
PRESSURIZATION TYPE (Ex p )
Minimum actions of Failure of Protective Gas for Ex p
NON-SPARKING TYPE EQUIPMENT (Ex n )
NON-SPARKING TYPE EQUIPMENT (Ex n )
POWDER FILLED TYPE EQUIPMENT ( Ex q)
OIL IMMERSED TYPE EQUIPMENT (Ex o)
SPECIAL TYPE EQUIPMENT (Ex s)
Add an appropriate photo
Insert a IP photo with gasket
IP Types and Protection Details
Indian Standards for Various Protection Techniques
Indian Standards for Various Protection Techniques
INSTALLATION & MAINTENANCE OF ELECTRICAL EQUIPMENT IN HAZARDOUS AREAS
INSTALLATION GUIDELINES OF ELECTRICAL EQUIPMENT IN HAZARDOUS AREAS (IS 5571)
INSTALLATION GUIDELINES OF ELECTRICAL EQUIPMENT IN HAZARDOUS AREAS
INSTALLATION GUIDELINES OF ELECTRICAL EQUIPMENT IN HAZARDOUS AREAS
INSTALLATION GUIDELINES OF ELECTRICAL EQUIPMENT IN HAZARDOUS AREAS
MAINTENANCE RECOMMENDATIONS IN HAZARDOUS AREAS
MAINTENANCE RECOMMENDATIONS IN HAZARDOUS AREAS
MAINTENANCE RECOMMENDATIONS IN HAZARDOUS AREAS
MAINTENANCE RECOMMENDATIONS IN HAZARDOUS AREAS
MAINTENANCE RECOMMENDATIONS IN HAZARDOUS AREAS
MAINTENANCE RECOMMENDATIONS FOR VARIOUS Ex Types (except Ex d)
STATUTORY REGULATIONS & APPROVAL REQUIREMENTS
Approval / Testing Agencies
Statutory Regulations For Plants Utilizing Hydrocarbons
Statutory Regulations For Plants Utilizing Hydrocarbons
EXTRACTS FROM PETROLEUM ACT, 1934
EXTRACTS FROM PETROLEUM ACT, 1934
CMRI, Dhanbad -Approval Agency for Electrical Equipment for Use In Hazardous Areas
Equipment Approval Procedure
ELECTRICAL SAFETY AUDITING IN HAZARDOUS AREAS
Focus Areas
European ATEX Directive
Auditing Checklists
MAINTENANCE RECOMMENDATIONS IN HAZARDOUS AREAS
TOTAL RECAP
European ATEX Directive
CHOLAMANDALAM AXA RISK SERVICES LTD.
LET US MAKE OUR REFINERIES SAFER !!!
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