obc industrial major occupancymajor occupancy...

OBC INDUSTRIALMAJOR OCCUPANCYMAJOR OCCUPANCY

CLASSIFICATION

OBOA ANNUAL MEETING AND TRAINING SESSIONS

LONDON ONOCTOBER 4 2011

Randal Brown & Associates Ltd. © 2011

OCTOBER 4, 2011

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PRESENTERSPRESENTERS

• RANDAL BROWN• RANDAL BROWN– P.ENG., PE, BDS, FSPFE

PRESIDENT– PRESIDENT

• MARK HARROP• MARK HARROP– P.ENG., BDS, CFPS

MANAGER INDUSTRIAL DIVISION– MANAGER, INDUSTRIAL DIVISION

• RANDAL BROWN & ASSOCIATES LTDRandal Brown & Associates Ltd. © 2011

• RANDAL BROWN & ASSOCIATES LTD.

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PRINCIPAL TOPICSPRINCIPAL TOPICS

• INDUSTRIAL MAJOR OCCUPANCIES• INDUSTRIAL MAJOR OCCUPANCIES– DIFFERENTIATING

10% CONCEPT– 10% CONCEPT– PAINT SPRAY BOOTH EXAMPLE

• OBC / OFC MANDATED PROTECTION– HOW TO GET FROM OBC TO OFC– WHAT TO LOOK FOR AND ASK FOR

Randal Brown & Associates Ltd. © 2011 3

SPRAY BOOTH PHOTOSPRAY BOOTH PHOTO


MAJOR OCCUPANCY DEFNMAJOR OCCUPANCY DEFN

• DEFINED IN OBC• DEFINED IN OBC– MAJOR OCCUPANCY:

• MEANS THE PRINCIPAL OCCUPANCY• MEANS THE PRINCIPAL OCCUPANCY FOR WHICH A BUILDING OR PART OF A BUILDING IS USED OR INTENDED TO BE USED, AND IS DEEMED TO INCLUDE SUBSIDIARY OCCUPANCIES THAT ARE AN INTEGRAL PART OF THE PRINCIPAL OCCUPANCY.


MAJOR OCCUPANCY DEFNMAJOR OCCUPANCY DEFN

• KEY POINTS:• KEY POINTS:– PRINCIPAL USE

– BUILDING OR PART OF BUILDING• CAN HAVE SEVERAL MAJORCAN HAVE SEVERAL MAJOR

OCCUPANCIES IN A BUILDING

– INCLUDES SUBSIDIARY USES


EXAMPLES OF MAJOR OCCUPANCIES

• APPENDIX NOTE A 3 1 2 1 (1)• APPENDIX NOTE A-3.1.2.1.(1)• PART 11 TABLES

• OTHER CODES– IBC– NFPA 101 & 5000


EXAMPLES OF MAJOR OCCYSEXAMPLES OF MAJOR OCCYS


EXAMPLES OF MAJOR OCCYPART 11


HOW TO DETERMINE MAJOR OCC’Y CLASSIFICATION

• BUILDING OFFICIAL TO ASK• BUILDING OFFICIAL TO ASK – OWNER / DESIGNER

ASK TO SEE EQUIPMENT LAYOUTS– ASK TO SEE EQUIPMENT LAYOUTS

• BUILDING OFFICIAL TO ASK: – WHAT IS ACTUALLY BEING DONE IN

THE BUILDING?– WHAT IS THE MAIN ACTIVITY?



• WHEN HAVE MULTIPLE USES:• WHEN HAVE MULTIPLE USES:– WOULD ONE OCCUPANCY / USE EXIST

WITHOUT THE OTHER?WITHOUT THE OTHER?

1 WOULD OFFICE BE PRESENT• 1. WOULD OFFICE BE PRESENT WITHOUT THE FACTORY?

• 2. WOULD BOARDROOM BE PRESENT WITHOUT THE OFFICES?



• EXAMPLE OF AUTOMOTIVE SPRAY• EXAMPLE OF AUTOMOTIVE SPRAY BOOTH

SPRAY BOOTH IN A MAACO?– SPRAY BOOTH IN A MAACO?• MAIN PURPOSE: BODYSHOP AND SPRAY

PAINT CARS.• WHAT IS THE MAJOR OCCUPANCY???

– F2 REPAIR GARAGE ??? OR……– F1 SPRAY BOOTH ???



• EXAMPLE OF AUTOMOTIVE SPRAY BOOTH• EXAMPLE OF AUTOMOTIVE SPRAY BOOTH– SPRAY BOOTH IN A AUTOMOBILE DEALERSHIP?

• MAIN PURPOSE: SELL CARS, REPAIR CARS, MAINTENANCE OF CARS.

• PAINTING IS JUST ONE FUNCTION.• DEALERSHIP WOULD STILL BE PRESENT WITHOUT

THE PAINT SPRAY BOOTHTHE PAINT SPRAY BOOTH• SO SPRAY BOOTH IS A SUBSIDIARY USE AND NOT A

MAJOR OCCUPANCY.


STEP 1 – GENERAL MAJOR OCCUPANCY

• WHAT IS MAIN USE?• WHAT IS MAIN USE?

• USE EXAMPLES IN APPENDIX• USE EXAMPLES IN APPENDIX

• USE EXAMPLES IN PART 11USE EXAMPLES IN PART 11


STEP 2FUEL LOAD ANALYSIS

• INDUSTRIAL OCCUPANCIES• INDUSTRIAL OCCUPANCIES

– F1 – HIGH HAZARD INDUSTRIALF1 HIGH HAZARD INDUSTRIAL

– F2 – MEDIUM HAZARD INDUSTRIAL

– F3 – LOW HAZARD INDUSTRIAL


F1 – HIGH HAZARD INDUSTRIAL OCCUPANCY

• SUFFICIENT QUANTITY AND• SUFFICIENT QUANTITY, AND

• SPECIAL FIRE HAZARD• SPECIAL FIRE HAZARD• HIGHLY COMBUSTIBLE AND FLAMMABLE, OR• EXPLOSIVE MATERIALSEXPLOSIVE MATERIALS

• INHERENT CHARACTERISTICS


F1 – HIGH HAZARD EXAMPLES

• SUFFICIENT QUANTITY AND• SUFFICIENT QUANTITY, AND

• SPECIAL FIRE HAZARD– PYROPHORIC– SELF-COMBUST IN AIR– CHEMICAL REACTIONS

• EXAMPLES IN APPENDIX• CHEMICAL PLANTS


F2 VS F3F2 VS F3

• F2 MEDIUM HAZARD• F2 – MEDIUM HAZARD – COMBUSTIBLE CONTENT MORE THAN

50 KG/M2 OF FLOOR AREA OR• 50 KG/M2 OF FLOOR AREA, OR• 1200 MJ/M2 OF FLOOR AREA.

• F3 – LOW HAZARD– COMBUSTIBLE CONTENT NOT MORE THAN– COMBUSTIBLE CONTENT NOT MORE THAN

• 50 KG/M2 OF FLOOR AREA, OR• 1200 MJ/M2 OF FLOOR AREA.


F2 VS F3 (CONT’D)F2 VS F3 (CONT D)

• FUEL LOAD ANALYSIS• FUEL LOAD ANALYSIS

• NEED:– QUANTITY OF MATERIALS IN BUILDING– WEIGHT OF MATERIALS IN BUILDING– HEAT OF COMBUSTION

• SFPE HANDBOOK• NFPA HANDBOOK


F2 VS F3 (CONT’D)F2 VS F3 (CONT D)

• EITHER CRITERIA WILL TRIGGER• EITHER CRITERIA WILL TRIGGER OCCUPANCY CLASSIFICATION.

• SO NEED TO LOOK AT BOTH• WEIGHT OF COMBUSTIBLE MATERIALS, AND• HEAT OF COMBUSTION OF COMBUSTIBLE

MATERIALS


F2 VS F3F2 VS F3

• STILL USE APPENDIX AND PART 11• STILL USE APPENDIX AND PART 11 EXAMPLES.

• WON’T DO FUEL LOAD ANALYSIS FOR EVERY INDUSTRIAL OCCUPANCYEVERY INDUSTRIAL OCCUPANCY


SFPE HANDBOOKSFPE HANDBOOK


NFPA HANDBOOKNFPA HANDBOOK


SAMPLE FUEL LOAD CALCULATION

Category of Mass Heat of Combustion Heat Releasedg yCombustible Material (kg) (MJ/kg) (MJ)

Hydraulic Oils 1 400 kg (approx.) 46.0 MJ/kg 64 400 MJ

Cables and Wiring 11 000 kg (approx.) 43.4 MJ/kg 477 400 MJ

FRP Floor Grating 6 000 kg (approx ) 40 52 MJ/kg 243 120 MJFRP Floor Grating 6 000 kg (approx.) 40.52 MJ/kg 243 120 MJ

FRP Tanks & Associated Piping 36 000 kg (approx.) 40.52 MJ/kg 1 458 720 MJ

Miscellaneous 6 000 kg (approx.) 43.4 MJ/kg 260 400 MJ

TOTAL 2 504 040 MJ


10% MAJOR OCCUPANCY PROVISION

• 3 2 2 8 (1)• 3.2.2.8.(1)

– AGGREGATE AREA OF ALL MAJORAGGREGATE AREA OF ALL MAJOR OCCUPANCIES IN A PARTICULAR DIVISION IS NOT MORE THAN 10% OF THE FLOOR AREA OF THE STOREY, NEED NOT BE CONSIDERED AS MAJOR OCCUPANCY FOR PURPOSES OF THISOCCUPANCY FOR PURPOSES OF THIS SUBSECTION, PROVIDED NOT F1 OR F2.


10% PROVISION (CONT’D)10% PROVISION (CONT D)

• MUST BE A MAJOR OCCUPANCY• MUST BE A MAJOR OCCUPANCY– DOES NOT INCLUDE SUBSIDIARY USES.

• APPLIES WELL TOA STRIP PLAZA WITH AN INDUSTRIAL– A STRIP PLAZA WITH AN INDUSTRIAL OCCUPANCYGROUND FLOOR OF CONDO– GROUND FLOOR OF CONDO

• RETAIL AND RESIDENTIAL MAJOR OCCUPANCIES


10% PROVISION (CONT’D)10% PROVISION (CONT D)

• F1 OR F2 CAN BE LESS THAN 10% AND• F1 OR F2 CAN BE LESS THAN 10% AND ARE REQUIRED TO BE CONSIDERED A MAJOR OCCUPANCY FOR 3 2 2MAJOR OCCUPANCY FOR 3.2.2.

• THIS 10% RELAXATION IS ONLY FOR• THIS 10% RELAXATION IS ONLY FOR THIS SUBSECTION

• ONLY FOR 3 2 2 – CONSTRUCTIONONLY FOR 3.2.2. CONSTRUCTION

• OCCUPANCY PROHIBITIONS ARE STILL


OCCUPANCY PROHIBITIONS ARE STILL APPLICABLE.

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10% PROVISION10% PROVISION


INDUSTRIAL OCCUPANCY SUMMARY

• USE COMMON SENSE• USE COMMON SENSE

• ASK DESIGNER TO CLASSIFY• ASK DESIGNER TO CLASSIFY MAJOR OCCUPANCY

• HAVE RIGHT TO ASK FOR A FUEL LOAD / COMBUSTIBLE LOAD STUDYLOAD / COMBUSTIBLE LOAD STUDY– STAMPED BY P.ENG.


NOTES:NOTES:


CASE STUDY: SPRAY BOOTHCASE STUDY: SPRAY BOOTH



• COMMON EXAMPLE OF F1• COMMON EXAMPLE OF F1 OCCUPANCY

• SPRAY APPLICATION OF FLAMMABLE LIQUIDS

• WHAT IS “SPECIAL FIRE HAZARD”?


SPRAY BOOTH HAZARD:SPRAY BOOTH HAZARD:

• THE ATOMIZATION OF FLAMMABLE• THE ATOMIZATION OF FLAMMABLE OR COMBUSTIBLE MATERIAL AS A RESULT OF SPRAYINGRESULT OF SPRAYING

• LEADS TO FREQUENT OPERATIONS DURING WHICH A FLAMMABLE / EXPLOSIVE VAPOUR-AIR MIXTURE IS PRESENT



• OTHER EXAMPLES OF F1 OCCUPANCIES• OTHER EXAMPLES OF F1 OCCUPANCIES ALSO FOCUS ON HAZARDOUS MATERIALSMATERIALS

• HAZARDOUS MATERIALS MUST BE• HAZARDOUS MATERIALS MUST BE ADDRESSED IN CONFORMANCE WITH THE REQUIREMENTS OF THE FIRE CODETHE REQUIREMENTS OF THE FIRE CODE

• OBC SENTENCE 3 3 1 2 (1)


OBC SENTENCE 3.3.1.2.(1)

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• ONTARIO FIRE CODE (OFC)• ONTARIO FIRE CODE (OFC) SECTION 5.12 ADDRESSES SPRAY APPLICATION OF FLAMMABLE ANDAPPLICATION OF FLAMMABLE AND COMBUSTIBLE MATERIALS

• OFC SUBSECTION 5.14.5 ADDRESSES AUTOMOBILE UNDERCOATING, ALSO A SPRAY


OPERATION38


• LOCATION OF SPRAY OPERATIONS• LOCATION OF SPRAY OPERATIONS

• OFC REQUIRES SEPARATION IN• OFC REQUIRES SEPARATION IN CONFORMANCE WITH OBC, WHERE APPLICABLE (OFC 5 12 1 1)APPLICABLE (OFC 5.12.1.1)

• THIS IS A REFERENCE TO MAJORTHIS IS A REFERENCE TO MAJOR OCCUPANCY SEPARATION (OBC 3.1.3.1)


SPRAY BOOTH CONSTRUCTION

• STEEL FRAME AND SHEET STEEL• STEEL FRAME AND SHEET STEEL AT LEAST 1.14 MM THICK, OR EQUIVALENT NONCOMBUSTIBLEEQUIVALENT NONCOMBUSTIBLE CONSTRUCTION

• INTERIOR SURFACES SMOOTH AND CONTINUOUS, FLOOR IN BOOTH NONCOMBUSTIBLE



• OVERSPRAY COLLECTION• OVERSPRAY COLLECTION

• FILTERS TO PREVENT COMBUSTIBLE• FILTERS TO PREVENT COMBUSTIBLE ACCUMULATION ON FAN BLADE, CASING AND DUCTWORKCASING AND DUCTWORK

• FILTER SUPPORTS NONCOMBUSTIBLEFILTER SUPPORTS NONCOMBUSTIBLE



• FILTERS MUST BE READILY• FILTERS MUST BE READILY ACCESSIBLE FOR CLEANING OR REPLACEMENTREPLACEMENT

• PROCEDURES TO REPLACE PRIOR TO EXCESSIVE RESTRICTION OF AIRFLOW



• FAN BLADES AND CASINGS MUST BE• FAN BLADES AND CASINGS MUST BE OF NON-FERROUS CONSTRUCTION OR DESIGNED TO PREVENTOR DESIGNED TO PREVENT CONTACT OF FERROUS PARTS

• REFERENCE AMCA SPARK-RESISTANT CONSTRUCTION (A/B/C)


VENTILATIONVENTILATION

• VENTILATION IN SPRAY AREAS• VENTILATION IN SPRAY AREAS MUST:

– KEEP CONCENTRATION BELOW 25% OF LEL OF MATERIAL, AND,

– MEET A 30 M/MIN VELOCITY REQUIREMENT AT FACE OF BOOTH



• DEDICATED EXHAUST FOR EACH• DEDICATED EXHAUST FOR EACH SPRAY BOOTH (EXCEPT WHEN LESS THAN 1 8 M2 FRONTAL AREA)LESS THAN 1.8 M FRONTAL AREA)

• NO RECIRCULATION

• GAUGES OR ALARMS REQUIRED TO MEASURE AIR VELOCITY


TO MEASURE AIR VELOCITY

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• DUCTS MUST BE SHEET STEEL• DUCTS MUST BE SHEET STEEL, THICKNESS AS PER OFC, BASED ON DUCT DIAMETERON DUCT DIAMETER

• ACCESS OPENINGS FOR CLEANING• ACCESS OPENINGS FOR CLEANING

• CLEARANCE OF 457 MM BETWEENCLEARANCE OF 457 MM BETWEEN DUCTS AND UNPROTECTED COMBUSTIBLE MATERIAL


COMBUSTIBLE MATERIAL

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• DUCTS THROUGH COMBUSTIBLE• DUCTS THROUGH COMBUSTIBLE PARTITIONS AND ROOFS REQUIRE A METAL COLLAR WITH 100 MM MINIMUMMETAL COLLAR WITH 100 MM MINIMUM CLEARANCE AND NONCOMBUSTIBLE INSULATING MATERIALINSULATING MATERIAL

• AIR DISCHARGE NOT WITHIN 1 8 M OFAIR DISCHARGE NOT WITHIN 1.8 M OF COMBUSTIBLE EXTERIOR WALL OR ROOF


ROOF

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ELECTRICAL EQUIPMENTELECTRICAL EQUIPMENT

• ELECTRICS IN A SPRAYING AREA• ELECTRICS IN A SPRAYING AREA (BOOTH OR ROOM) MUST CONFORM TO CHAPTERS 18 ANDCONFORM TO CHAPTERS 18 AND 20 OF ELECTRICAL CODE

• CHAPTER 18 – GENERAL REQUIREMENTS

• RULE 20-400 – SPECIFIC FOR


SPRAY BOOTHS51


• INSIDE SPRAY BOOTH AND• INSIDE SPRAY BOOTH AND EXHAUST DUCTWORK - CLASS I, ZONE 1 HAZARDOUS LOCATIONZONE 1 HAZARDOUS LOCATION

• OUTSIDE SPRAY BOOTH – CLASS I, ZONE 2 IN A 1.5 M RADIUS OF THE OPEN SIDE IN ALL DIRECTIONS, UP TO 1 M ABOVE THE CEILING OF


THE BOOTH52


• ELECTRIC MOTORS FOR EXHAUST• ELECTRIC MOTORS FOR EXHAUST FANS ARE NOT PERMITTED IN SPRAY BOOTHS OR EXHAUST DUCTSBOOTHS OR EXHAUST DUCTS

• METAL PARTS OF SPRAY BOOTHS• METAL PARTS OF SPRAY BOOTHS AND EXHAUST DUCTS AND PIPING FOR FLAMMABLE LIQUIDS MUST BEFOR FLAMMABLE LIQUIDS MUST BE ELECTRICALLY GROUNDED


OPERATIONSOPERATIONS

• FLAMMABLE LIQUIDS MUST BE• FLAMMABLE LIQUIDS MUST BE STORED AND HANDLED IN CONFORMANCE WITH PART 4 OFCONFORMANCE WITH PART 4 OF THE OFC

• MAXIMUM QUANTITY IN THE SPRAY AREA IS ONE DAY’S SUPPLY –AREA IS ONE DAY S SUPPLY CONTAINERS KEPT CLOSED WHEN NOT IN USE


NOT IN USE

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OPERATIONSOPERATIONS• SPRAYING EQUIPMENT IN SPRAYSPRAYING EQUIPMENT IN SPRAY

BOOTH MUST BE INTERLOCKED TO THE VENTILATION SYSTEM IN THETHE VENTILATION SYSTEM IN THE BOOTH

• DISCARDED FILTERS REMOVED TO SAFE LOCATION OR PLACED IN ASAFE LOCATION OR PLACED IN A METAL, WATER-FILLED CONTAINER AND REMOVED AT END OF DAY


AND REMOVED AT END OF DAY56

FIRE PROTECTIONFIRE PROTECTION

• REQUIRED• REQUIRED

• SPRAY AREAS SPRAY BOOTHS AND• SPRAY AREAS, SPRAY BOOTHS, AND SPRAY ROOMS MUST BE SPRINKLERED IN CONFORMANCE WITH NFPA 13IN CONFORMANCE WITH NFPA 13

• IF UNSPRINKLERED BUILDING FIREIF UNSPRINKLERED BUILDING, FIRE PROTECTION COULD BE AS PER NFPA 33



• IF SPRINKLERED NFPA 13 REQUIRES• IF SPRINKLERED, NFPA 13 REQUIRES EXTRA HAZARD (GROUP 2) PROTECTION UNDER MOST CIRCUMSTANCESUNDER MOST CIRCUMSTANCES

• HEADS REQUIRE PROTECTION FROM OVERSPRAY BY THIN PAPER OR LIGHTWEIGHT POLYETHYLENE BAGS



• PORTABLE FIRE EXTINGUISHERS• PORTABLE FIRE EXTINGUISHERS REQUIRED IN CONFORMANCE WITH OFC SECTION 6 2WITH OFC SECTION 6.2

• CLASS B EXTINGUISHERS FOR FLAMMABLE AND COMBUSTIBLE LIQUIDS


AUTOMOBILE UNDERCOATING



• SPECIFIC EXAMPLE (OFC 5 14 5)• SPECIFIC EXAMPLE (OFC, 5.14.5)

• UNDERCOATING MATERIAL MUST HAVE FLASH POINT NOT LESS THAN 37.8 DEGREES CELSIUS

• LESS STRINGENT THAN FLAMMABLE PAINTING


FLAMMABLE PAINTING

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• IF FLASH POINT LESS THAN 60• IF FLASH POINT LESS THAN 60 DEGREES CELSIUS THEN VENTILATION REQUIRED TO KEEPVENTILATION REQUIRED TO KEEP VAPOUR LESS THAN 25% OF LEL

• AIR MOVES ALONG LENGTH OF VEHICLE, EXHAUST APPROXIMATELY 1 M ABOVE FLOOR


NOTES:NOTES:


THANK-YOU

RANDY BROWN & MARK HARROP

RANDAL BROWN & ASSOCIATES LTD.105 6 LANSING SQUARE105 - 6 LANSING SQUARE

TORONTO ON M2J 1T5416-492-5886

[email protected]

[email protected]

WWW.RBACODES.COM


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