Register Here | Login | My Account | Shopping Cart | Customer Service | Search| Items in Cart (0) | Quotes (0)
Call 1-800-369-6671
(Military/Intl Sales - 214-616-6180)
LIGHT TOWERS IN STOCK
       
 

Vast Inventory for Fast Shipping. Custom Builds Available, Rentals and Sales.
Most items in stock for fast shipping!! UPS Ship Map Credit cards & Paypal Accepted
Home - Articles You're NOT logged in, Please log in   

Search:
Company Information

Product #:

         
ATEX and IEC Ex Flame-proof Explosion Proof Lighting & Equipment
Explosion Proof Lights
Explosion Proof Motors - Motors for Hazardous Locations
Industrial and Vaporproof Emergency Failsafe Lighting
Industrial Cord Reels and Tool Taps
Industrial Work Area Heaters
Machine Vision Lights
Megatower™
QC Series Industrial Portable Lighting - Quick Change Mount
Rig Lights
Stadium lights
String Lights and Temporary Light Stringers
Tank Cleaning Lights
Three Phase Motor Soft Starters
Vapor Proof LED Lights
Variable Frequency Drives (VFDs)
Vehicle Mounting Plates
Workboat Light Fixtures & Lighting Equipment
Yacht Engine Room Lights
Color Changing LED RGB Lighting
Explosion Proof Cord Reels
GOLIGHT Spotlights
Larson FUTURE - Lease Lighting
Remote Area Lighting and Scene Lights
Utility Bucket Mount, Receiver Hitch & Trailer Mount Lighting
Aevum Control Lighting and Equipment - IIoT
Butane and Solvent Extraction Room Lighting and Equipment
DC to DC Transformers and Power Supplies
Explosion Proof Fans & Blowers
Explosion Proof Paint Spray Booth Approved Lights
Explosion Proof String Lights
Explosion Proof Switchgear & Controls
Fleet Service Lights and Lighting Equipment
Industrial Equipment Trailers
Industrial Handlamps & Droplights
ISO 14644/FS-209E Clean Room Lighting
LED Blasting Lights
Night Time Fishing Lights
Portable AC Power Supply Units
Portable Power Distribution Panels
Power Distribution Panels with KVA Transformers
Self-Contained Lighting
Service Pit Lighting
Solar Generators & Solar Powered Lighting
Agricultural Farm Equipment Lighting & Beacons
Explosion Proof Cameras & Surveillance Systems
Explosion Proof Emergency Lights
Explosion Proof Heaters
Garage & Gas Station Canopy Lights
LED Grow Lights
LED Lights
NDT Ultraviolet Lights
Portable Hazardous Location Lighting
Radio Communication Towers and Equipment
Salt Water Processing Equipment
Shelter & Tent Lighting
Thermal Monitoring Cameras and Systems
48V LED Equipment Lights
ATEX Rated Explosion Proof Lights
Automotive Lighting
Class Rated Signals, Alarms, and Systems
Hazardous Location Area Lights and Portable Lighting
HID Equipment Lights
Hot Work Permit Lighting and Equipment
Hunting Lights
Industrial lasers
Industrial Transformers
Light Towers
Outdoor Lighting
Remote Security and Surveillance Systems
Temporary Construction Lights
Vehicle Mounted Spotlights
Equipment & Heavy Machinery LED Light Package Fitouts
Phase Converters - Single to Three Phase
Marine Shore Power Cords and Equipment
24 Volt Military Lights
Disaster Relief / First Responders / Search & Rescue Lighting
Plastic Handcuff Key
110/120 Volt Flood Lights
Post Mount Spotlights
Magnetic Work Lights
Crank-up Light Masts
**********    
Intrinsically Safe Lights
Military Flashlights
LED Waterproof Lanterns
Work Area Lights
12 Volt Flood Lights
**********    
**********    
Boat Spotlights
New Boat Lights
HID Boat Lights
Boat Dock Lights
**********    
Remote Control Lights
Control Lights
Tow Lights
Magnetic Control Lights
**********    
NEW Lights and New Products
Evaporative Coolers
Police Equipment
AC/DC Transformers
Power Supplies
**********    
Military Spotlights 24V
Infrared Filters, Covert Covers, and Blackout IR Lenses
Military Equipment
Ultralife Batteries
Remote Control Pan Tilt Base
**********    
Larson Electronics Spotlights
Larson Electronics Parts
Replacement Lamps
Cords - Brackets
Portable Wheeled Generators
Non-Hazardous Location Extension Cords / Plugs / Outlets
**********    
HID Work Lights
HID Dive Lights
HID Off Road Lights
Acro Lights HID Lights
Halogen Lights
**********    
Acro Light Flashlight
Xenon HID Flashlights
Powerlight Flashlight
HID Flashlights
Xenon Flashlights
**********    
LED Status Lights
Forklift Lights
Tractor Lights
HID Post Mount Lights
Roof Mount Lights
Post Mount Light parts
**********    
Flashlight Holder
Magnet Spotlight Base
Tripods-Magnetic Base
**********    
Recharging Spotlights
Fire Rescue Lights
LED Street Lights
Utility Lights
**********    
Hazard Lights
Strobe Lights - Battery Operated
Strobes & Beacons
Strobe Light Bars
**********    
Headlights - Headlamps - Hard Hat Lights
Flashlights
**********    
Suction Mount Lights
Magnetic Spotlights
12/24 Volt Spotlights
Gifts For Men
**********    
**********    
New 12 / 24 Volt Lights
Explosion Proof Accessories and Replacement Parts
Explosion Proof Lighting
Explosion Proof Hand Lamps (Drop Lights)
Explosion Proof Lights - Stand/Dolly
Explosion Proof Tank Lights
Explosion Proof Phones and Intercoms
Explosion Proof Extension Cords
Black Friday & Cyber Monday Specials
Crane Lights
Explosion Proof Light Rentals
General Light Rentals
Light Tower and Light Plant Rentals
Power Distribution Rentals
**********    
Power Plant Lighting
Refinery lights
Environmental Services Lights
Aerospace Lights
Chemical Plant Lights
Food Grade Safe Lights
Film and Entertainment Lights
Handheld Meters and Devices
Waste Water Treatment Lights
Mining Lights
Ship Yard Lights
Work Site Lighting
         

   
01/28/13 Explosion Proof and Intrinsically Safe Lighting in Confined Spaces

Article-January 2013 By Larson Electronics.com

Explosion Proof Compact Fluorescent Drop Light

Larson Electronics Explosion Proof Compact Fluorescent Drop Light


Confined spaces represent some of the most hazardous areas a worker can access. Because of the potential for becoming trapped, the possible presence of pooled gases and vapors, and the likely presence of unshielded machinery and equipment, the chances for accidents are high and the speed with which they can occur is great. Workers must take extraordinary precautions before entering a confined space, even in situations where rescue efforts or critical repairs necessitate fast response.


Confined spaces in many cases are required to be marked as such and require that only permit holding personnel be allowed to enter. Even in areas not clearly marked as permit required, if the potential exists for trapped toxic or flammable gases or vapors to be present, or access is limited, or the space holds materials which could engulf a worker, or if the space is otherwise not intended for a workers physical presence, they should be considered a hazardous confined space.


Even a simple container or pipe can appear harmless yet pose a serious threat to safety should ingress become required. Just because the space looks empty or there are no obvious threats from exposed wiring, equipment or gear, does not mean entrance can be considered safe. Confined spaces due to their very nature tend to trap gases and vapors which can either pose an inhalation risk or potential for ignition, or the area can lack adequate oxygen and produce potential asphyxiation. In either of these cases, the very atmosphere itself poses and invisible threat that can be just as lethal as a visible one.

The biggest part of safely entering and working within a confined space involves proper preparation. A detailed threat assessment before entrance, a clear exit strategy, and properly chosen gear are a must before any entry can be performed. Particularly in cases where a space could potentially contain a hazardous atmosphere, testing for oxygen levels and the presence of dangerous gases is critical to being able to properly prepare for entrance. In cases where a breathable atmosphere is not present or toxic vapors are present, workers will be required to carry their own air. In cases where flammable or explosive gases and vapors are present, any electrical equipment to be used inside the confined space must be appropriately designed to work within such environments.



Of all the equipment typically used within confined spaces, lighting is the most common. There are normally no integral light sources within confined spaces, and the limited access and sealed nature of most confined spaces greatly limits the amount of ambient light which can enter, thus workers must provide their own illumination.  There are only two types of lighting which should be considered suitable for use within confined spaces, either equipment that is approved explosion proof, or certified intrinsically safe. Additionally, this lighting gear must be chosen according to the type of atmosphere present as not all gases and vapors present the same fire or explosion potential. As a result, explosion proof equipment must be chosen according to Class, Division and Group ratings in order to ensure compliance with regulations and suitability for use around a particular set of gases or vapors. Intrinsically safe equipment is typically the highest safety rating and denotes equipment which is incapable of producing the heat or sparks required to cause ignition, thus it is suitable for the widest array of environments. However, intrinsically safe lighting is typically lower powered and limited in its ability to illuminate an area effectively, thus oftentimes limiting its practicality.


If flammable or explosive gases or vapors are found to be present within the confined space, explosion proof lighting must carry a Class 1 Division 1 rating. Equipment rated as Class 1 means it is rated for use with gases and vapors. Class 2 denotes combustible dusts and therefore would not be suitable in an environment contaminated by gases. Of course, if dusts are present, then obviously Class 2 equipment would be the correct choice. Division 1 denotes the active and continuous presence of these flammable or explosive materials. Since if an atmospheric test revealed their presence, then a Division 1 classification is correct. Division 2 refers to the presence of flammable or explosive gases or vapors under abnormal conditions, meaning a possible leak or otherwise unexpected presence of these materials, and thus does not hold the proper protections.



The more subtle yet equally important next consideration is what Groups the device is approved for. Groups denote the types of gases present and are categorized according to their ignition temperature and explosive potential. Since not all gases or vapors will ignite at the same temperatures or burn with the same rapidity or release of energy, this is obviously an important classification.


Groups encompass a wide variety of materials, but a general breakdown is as follows. For a more complete list, operators should refer to the NFPA’s National Electrical Code publication.


Group A refers only to Acetylene which has an extremely high explosion pressure.


Group B refers to Hydrogen, gases with more than 30% hydrogen by volume, butadiene, and other gases with similar explosive properties.


Group C refers to ether, ethyl, and ethylene gases, and other gases of a similar potential.


Group D refers to gasoline, acetone, ammonia, benzene, butane, methanol, propane and other more commonly encountered compounds.



As we can see, even with the proper Classification and Division, unless groups are also considered, safety as well as compliance with regulations is not ensured.
It is also worth noting that a most lighting equipment relies on power supplied from external sources, meaning it has a cord which must be connected to a power source. In most cases, the connection must be either be made outside of the hazardous location, or a plug and receptacle which also carries the same approvals as the fixture itself must be used. Some equipment relies on a transformer or ballast assembly somewhere inline with the power cord; in these cases the transformer or ballast assembly usually must also remain outside of the confined space. 


Confined space safety is a multi-faceted issue that requires comprehensive assessment in order to be addressed effectively. Worker preparation, site testing, equipment selection, and exit strategies all play critical roles and must be diligently addressed if entry is to be performed safely.





Related Categories/Products
Category/Product (click on link below for more information)
Explosion Proof Lights
Explosion Proof Fans & Blowers
Paint Spray Booth LED Lights
Tank Cleaning Lights
Rechargeable Explosion Proof Flashlights
Hazardous Area Light - 2 X 400 Watt Metal Halide Lights - Cart - 150,000 Lumens Covers 36,000 SF
Static Conductive Duct - EPF-8P and EPF-10P Explosion Proof Blowers - 8 inch OD - 25 foot long -
Explosion Proof Fan (Blower) - Electric - Portable - Hazardous Location Ventilation - Intl - 220V
Aluminum Coupler for Explosion Proof Ventilation Fan Ducts
Explosion Proof LED Light with Emergency Ballast - 4' 2 Lamp - 48 Watts
Explosion Proof LED Tank Light - 17,500 Lumens LED - Wheelbarrow Cart - 250' Cord - Class I Div 1
Explosion Proof-Tripod Mount-Single 150 Watt Led Light-100 foot cord
Aluminum Coupler for Explosion Proof Ventilation Fan Ducts
150W Hazardous Location Lighting - Quadpod Mount - 100' 16/3 SOOW Cord - Class 1, Division 2
Intrinsically Safe Blasting Light - LED Blasting Gun Light - 4 Watt LED - Battery Powered - 80 Hour
Explosion Proof Rechargeable LED Task Light - Spot/Flood Combo - 8hr. Runtime - Class I, Div. I
Rechargeable Explosion Proof LED - Spot/Flood Combo - Class I, Div. I - ATEX Approved
Explosion Proof Tank Flashlight - 20 Watt HID Rechargeable - Class 1, Division 1 Groups A,B,C,D.
Explosion Proof LED Flashlight - Rechargeable LED Flashlight - 3 Modes - Class 1 Division 1
Explosion Proof Blasting Light - LED Blasting Gun Light - 4 Watt - Rechargeable
Explosion Proof Surface Mount LED Light - 20 Watts - Weatherproof - Aluminum Construction
Explosion Proof Hand Lamp -100/60 Watt - 120V AC - 50 Foot SOOW Cord w/ 20A Explosion Proof Plug - C
Electric Explosion Proof 16" Blower Ventilator - 4450CFM- 220VAC - C1D1 - 30' Cord w/ 6-20P Cord Cap
140 Watt LED Explosion Proof Quadpod - Dual 70 Watt LED Heads - 100 foot cord - 11,600 Lumens
Explosion Proof LED Paint Spray Booth Light - 2nd Gen - Class 1 Div 1 - Class 1 Div 2 - T6
Home | Contact Us | Return Policy | Privacy Policy | Security Policy | Copyright © 2006-2018. All Rights Reserved.