LIGHTING in Hazardous (Classified) Locations

Transcription

1 LIGHTING in Hazardous (Classified) Locations

2 Topics What is a Hazardous Location? Who Classifies Hazardous Areas? Common Hazardous Location Areas Mechanics of Gas & Vapor Explosions Lighting for Hazardous Locations

3 Hazardous Locations Two Main Categories of Industrial Area Electrical Installations Ordinary Locations Shock & Fire Hazards Hazardous (Classified) Locations Explosion Hazards

4 Who Classifies Hazardous Areas? Electrical Inspector Engineer of Record Owner Expert Insurance Company MANUFACTURERS DO NOT CLASSIFY

5 Hazardous Locations First Hazardous Areas

6 Hazardous Locations Hazardous Location Defined Gases Vapors Liquids Dust Fibers/Flyings

7 Classes, Divisions & Groups Class I- Gasses Class II- Dust Class III- Fibers/Flyings

8 Classes, Divisions & Groups Classifications Divisions (Zones) Division 1 ( Zone 0 & 1 ) Normally hazardous Normally present Division 2 ( Zone 2 ) Not normally hazardous Not normally present

9 Hazardous Locations Hazardous Location Risks Fire Explosion Breakdown Equipment Damage

10 Hazardous Locations First Method of Protection

11 Common Hazardous Locations Grain Delivery Elevator Textile & Apparel Industry

12 Common Hazardous Locations Waste Water Treatment Plant

13 Common Hazardous Locations Refineries

14 Mechanics of an Explosion Fire Triangle FUEL Prevents Fire or Explosion COMBUSTION OXYGEN IGNITION

15 Hazardous Location Lighting Explosion Proof Enclosures Contain the explosion Prevent the escape of hot gases Allow only the cool gases to escape XP Enclosure Explosion occurs in the enclosure Gases cool before reaching hazardous area

16 Hazardous Location Equipment

17 Hazardous Location Equipment Common Flame-path Threaded Joint

18 Hazardous Location Equipment Common Flame-path Ground/Flat Joint

19 Hazardous Location Equipment Play - Explosion Demo Videos

20 Mechanics of an Explosion Sources of Ignition Arcing & Sparking Devices Sparking Metals Heat Static Electricity Loose Connections

21 Hazardous Location and LED Key Issues Safety Harsh environments Maintenance expenses Lifecycle costs Environmental pollution

22 Hazardous Location and LED Safety Maintenance Free Operation Installation Electrical Protection & Reliability SAFETY Beyond Economic Impact $$ Lighting Quality Lower Temperature Codes Vibration, Corrosion, Dust & Water Resistance

23 Hazardous Location and LED Harsh Environments

24 Hazardous Location and LED Maintenance Savings P Hours Permit Paperwork Job Safety Analysis Average time to replace light fixture = 5 Hours Driving to jobsite Getting Equipment Getting to fixture Fixture Setup Q Hours R Hours % of time using Ladders 60% Man Lift 20% Bucket Truck 15% Scaffolding* 5% * Time to build Scaffolding 10ft = 16 hrs 20ft = 20 hrs S Hours HID/FL Disposal Closing Permit

25 Hazardous Location and LED LED Advantages Long Life Light Source Dim gradually over time LEDs rarely fail catastrophically Excellent lumen maintenance 70% sustained lumens at 60K hours Eliminates frequent maintenance Typical HID 7K to 15K Durable Light Source - Contain no filaments or glass

26 Hazardous Location and LED LED Advantages Long Life Energy Efficient Durable Small Size Mercury free Instant On Dimming capabilities

27 Reflector Hazardous Location and LED LED Conventional Lighting Directional Light source Minimizes any wasted light Places more light on task Improves overall fixture efficiency 27

28 Hazardous Location and LED Instant Start Requires no warm up No loss of light at cold temperature Environmentally Friendly Contains no mercury Energy efficient Reduced disposal cost 28

29 Hazardous Location and LED LED fixtures have been well received for use in hazardous locations and harsh industrial locations 29

30 Hazardous Location and LED Questions? 30