The global explosion protection system can be divided into: Zone System (Global) and Division System (North America). The two explosion-proof systems are independent of each other!

Explosion-proof system distribution map

The proportion of Zone Division series used in North America

Three elements of explosion:

• Explosive substances: gases that can react with oxygen (air), Liquid, and solid. (Hydrogen, acetylene, methane, alcohol, Gasoline, flour, aluminum powder)
• Oxygen or air
• Ignition sources: including open flames, electrical sparks, mechanical sparks, Static spark, high temperature, chemical reaction.

One sentence summary: The ignition source is temperature and energy!

Three common explosion-proof principles:

• Control explosive substances (make explosive substances inaccessible To the detonation source, Ex P)
• Control the explosion range (control the explosion within a certain range, and its His scope is not affected, Ex d)
• Control the detonation source (eliminate the detonation source, reduce energy and temperature, Ex i).

One sentence summary: Control the three elements of explosion or control the scope of explosion

The key parameters that determine explosive substances: Explosive concentration, ignition temperature!

Explosion concentration range of common gases

The ignition temperature of common gases

Common types of explosion protection

The different types of explosion protection are explained below, for you reference. If you have any doubts, please contact us.

Flameproof type

Zone system: "d"

Division system: "XP"

Allow internal explosion

Control the surface temperature

Can be used in Zone 1, Zone 2, Division 1, Division 2

 Note: "da" explosion-proof equipment can be used in Zone 0, the conditions are stricter, and there are few practical applications.

CES has 3 series of explosion proof lights belonging to Flameproof type (IEC/EN 60079-1)

CES-EX-LN Series Explosion Proof Led Linear Light

CES-EX-GB Series Explosion proof led high bay

CES-SC Series Explosion proof led hand light

Increased safety type

Zone system: "e"

A shock-resistant shell is required

Control the temperature of the internal and external surfaces

Minimum protection grade IP54

No arc, no spark

Can be used in Zone 1, Zone 2

Note: There is no explosion-proof type for the Division system.

CES-J Series Explosion proof LED Floodlights belonging to Increased safety type.

CES-EX-SF Series Explosion proof LED Luminaries belonging to Enclosure Protection type

Intrinsically safe type

Zone system: "ia / ib / ic"

Division system: "IS"

Limit energy; limit temperature

Can be used in: Zone 0, Zone 1, Zone 2, Zone 20, Zone 21, Zone 22, Division1, Division 2

Type n / Nonincendive

Zone system: "n"

Division system: "NI"

Equipment has no normally arcing parts ；

Thermal effects incapable of ignition ；

nA = no spark

nR = restricted breathing

nC = limit spark

nL = ic limited energy

Can be used in Zone 2, Division 2

Enclosure Protection type: Dust Ignition Protection By Enclosure

Zone system: "ta / tb / tc"

Division system: "DIP"

Control surface temperature;

Requirements for protection level IP 6X, IP 5X;

Can be used in: Zone 20, Zone 21, Zone 22, Division1, Division 2;

CESP explosion proof lighting products conform to a variety of explosion-proof type. If you are looking for explosion-proof lights for your project, please submit your requirements to us, and we will match you with suitable lamps.

• Certification: It refers to market access qualifications. With certification, the product will be recognized by the market and can be sold.

1. Summary of certifications involved in global explosion-proof luminaries

2. Explosion-proof market standards in different countries around the world

• 

• • a. North American hazardous location certification

  

  • b. European ATEX certification

                     

  • c. International IECEx certification

Some countries have their own standard system, must meet the requirements to enter the market, such as the follow explosion proof certification.

Brazil – INMETRO,     India-CCOE,

Japan-TIIS,    Russia-CU TR,

South Korea-KCs,     South Africa-IA,     China-EX, etc.

(All CESP products have obtained North American UL844 explosion-proof certificates, European ATEX explosion-proof certificates, and international IECEx explosion-proof certificates. If you need products with explosion-proof certificates for country certification standard, we can also provide them, please contact This email address is being protected from spambots. You need JavaScript enabled to view it.)

3. Interpretation of Certification Mark

a. Interpretation of North American certification mark:

 C: Canada                          S: United States

UL is the United States        CSA is Canada

b. Component certification (not applicable to lamps)

• Interpretation of EU standard certification mark:
• CE contains a variety of directives such as LVD, EMC, pressure equipment, elevators, machinery, explosion-proof, etc.;
• CE Marking can be marked by any instruction
• 2014/34/EU Equipment and protective systems intended for use in potentially explosive atmospheres （ ATEX ）

Note: The equipment used in Zone 2 can be self-declared.

 c. Interpretation of international standard certification mark:

IECEx is often used to convert to local certification and is rarely used alone. In most cases in Australia and South Africa, it can be used directly.

Note: IECEx does not accept self-declarations.

4. Authoritative explosion-proof certification body

                                     Standards Council of Canada (SCC)                         U.S. Occupational Health and Safety  Administration (OSHA)

Notified Body: European Directive 2014/34/EU ATEX-Equipment and protective systems intended for use in potentially explosive atmospheres.

Certification Body (EXCB)

Equipment Service Facilities Certified Persons（CoPC） Conformity Mark

Spray Paint Booth is a flammable and explosive environment. The electrical appliances, circuits, and lighting fixtures used must all have electrical regulations of different countries.

Part 1. Common Spray Paint Booth is divided into the following categories

A. Dry Spray Paint Booth

Dry spray paint booths

In each spray booth, the arrangement of the paint mist filter holes will produce a cyclone effect, forcing paint particles to fall on the bottom of the booth, and the airflow will be discharged from the filter, which effectively removes paint mist particles. From this cyclone effect. Depending on the nature of the spray paint product, the filtration rate reaches 96%. Even with the kind of high-performance paint, the surface is rarely blocked. Dry paint mist filter can block every tiny particle.

Features of Dry Paint Booth

• Dry spray booths are the development trend of spray painting operations with low output (limited to working environments with small spray volume)
•  The dry spray booth first uses paint mist filter cotton and then uses an activated carbon purifier to filter, and some add a paint mist filter cotton before the activated carbon to extend the life of the activated carbon;
•  The simple dry spray booth is very simple to use activated carbon filter;
•  The paint mist filter cotton can be reused, and the time is determined by the specific working conditions of the manufacturer;
•  Under normal operation, there are no more fire hazards than families;
•  The investment is less than that of the wet type, and the operating cost is not high.

B. Water curtain Spray Paint Booth

The characteristic of water curtain Spray Paint Booth is to use the flowing curtain-like water layer to collect and take away the paint mist. The exhaust device ensures that the paint mist does not escape and maintains a good working environment in the workshop. Water curtain Paint Booth is mainly composed of chamber body, tank body, water curtain board, water circulation system, spray system, steam water separation system, slag removal system, exhaust system, etc.

Features of Water curtain Paint Booth as follow,

• Purification efficiency reaches the standard-spray paint mist removal rate ≥90%. The removal rate of hydrophilic dust above 5μm is ≥96%
• Reliable work and operation-safety explosion-proof centrifugal fan is assembled as exhaust device and water circulation power device. Parts that are not prone to failure and frequent maintenance, so the equipment is very reliable.
• Simple operation and maintenance-the basic operation is to start and stop the fan (press a button);
• Convenient and flexible installation-all are modular design, which can be easily combined according to the painting workpiece and process requirements. No special installation foundation and civil construction are required. It is more suitable for the environmental protection equipment installed in the renovation plant.
• Various types of front rooms-suitable front room types and specifications can be selected according to the user's plant conditions and process characteristics.
• No waste water gas discharge-the discharged waste gas is purified by circulating water (special flocculant is added to the water), and the water will evaporate naturally. Therefore, no waste water is discharged. The paint slag remaining in the circulating water can be removed regularly.
• Convenient maintenance in later period-easy maintenance, reliable equipment performance, not easy to malfunction, and easy to use;
• Excellent purification efficiency-due to the air containing paint mist, through the water curtain, water curtain, and the strong mixing and stirring of the water mist in the air-water channel, a multi-stage purification process is formed, which improves the purification efficiency;
• Easy to clean up residues-adding flocculant to the water solves the trouble of paint fog sticking to the equipment, and is easy to clean up to ensure the ventilation effect.

C. Water Spinner Paint Booth

The hydrocyclone type Spray Paint Booth is generally a top-feeding-down exhaust type, and a hydrocyclone structure is used to remove paint mist. It is mainly composed of chamber body, air supply system, paint mist filter system, exhaust system, water circulation system, hydrocyclone, etc. The main principle is: according to the atomization principle of the gas-liquid two-phase mixture, if the speed of water and air is very different, the water can be atomized well in the air, and then fully contact and condense with the paint mist, and finally the water and air The paint is left in the water, and then the water is reprocessed. Water spinner Paint Booth is a large-scale Paint Booth that is currently used more frequently.    

Features of Water Spinning Paint Booth as follow,

• The indoor air flow is stable and the paint mist does not scatter.
• Simple structure and quick construction.
• High-efficiency paint mist purification, purification efficiency ≥98%.
• Automatic constant temperature air supply during winter painting

 Part 2. The reason why Spray Paint Booth is flammable and explosive

• There is no independent paint spraying room and paint mixing room. Many spray booths generally adopt an open layout, and the surroundings and ceilings are not effectively isolated or closed, and do not meet the national standards for spray booths; some companies have simple job sites, and the paint mixing process is carried out directly in the spray job site. The barrel is left open at will, which is extremely dangerous. 
• There is no dedicated hazardous chemical warehouse. Some companies mix paint, thinner, and other items in a warehouse, and some companies even place them directly at the spraying site. Once they encounter an open flame, the fire will spread quickly, with disastrous consequences. 
• Insufficient fire separation distance between spray booths. In some companies, the safety distance between the spray booth and the drying operation facility, and the electric welding and gas welding operation site is seriously inadequate. 
• The electrical facilities do not meet the requirements. The electrical facilities of many companies' spraying workplaces, such as lighting fixtures, exhaust fans, etc., are general electrical appliances, and no explosion-proof measures have been taken. Temporary wiring, disordered wiring, and the use of ordinary sockets are more common. 
• The ventilation effect of the spray booth is poor, and the exhaust air system cannot meet the process safety requirements. During the spraying process, paints and thinners will volatilize a large amount of flammable and explosive mixed gas. The poor ventilation effect directly leads to the accumulation of dust and coating mist, and it is easy to reach the explosion limit of the gas, and encounter sparks generated by open flames or static electricity. , There will be an explosion in an instant. 
• On-site management is generally poor. There was a lot of paint waste in the spray booth, and they could not be cleaned up in time.
• The production equipment lacks necessary safety devices and effective measures to eliminate static electricity. Pneumatic spraying operation spray guns and other spraying equipment are not grounded statically, and it is easy to form static electricity accumulation and discharge.
• Insufficient fire-fighting equipment in spraying workplaces and warehouses, and no safety signs and safety cordon lines have been hung. 
• The fire-fighting passage in the spraying work site is not smooth. The overall layout of the spraying workplace is unreasonable, and raw materials, semi-finished products, finished products and other materials are stacked at will, causing serious blockage of the fire-fighting passage. 
• Anti-static work clothes, protective glasses, conductive shoes and other protective products are not equipped in accordance with the specifications or used correctly during spraying operations. 
• Business owners don't pay enough attention to safety production, lack of specialized safety production management personnel, safety production rules and regulations are not sound, enterprise safety production investment is insufficient, and safety investment is too much in debt. 
• Business owners and practitioners lack the proper understanding and understanding of the dangers of paints, coatings, and thinners used in spraying operations.

Part 3. Spray Paint Booth lighting requirements

For Paint Booth, the appropriate light source illuminance is a very important indicator. Its importance is reflected in the fact that for some workpieces with a relatively flat painted surface and a relatively simple structure, a slight lack of illuminance is acceptable, but for some workpieces with complex structures, it is very important if the illuminance of the light source is insufficient. It may cause a series of painting problems such as excessive thickness, thinness, leakage, flow, etc. in some parts of the spray paint. At this time, it is necessary to use special lamps for hazardous locations.

Illumination: The brightness of Paint Booth needs to reach 800-1000lux, and it needs to be close to D65.

At the same time, the inner wall of Paint Booth should be matte white. When using partitions made of transparent materials such as glass for lighting, fixed luminaires should be used as light sources, and partitions should be used to separate the area where the luminaires are installed from the electrostatic paint area. The installation gaps should be reliably sealed. The material of the partitions is It is non-flammable and not easy to break, and the thickness of the deposit on the partition shall not affect the specified illuminance.

Enclosed explosion-proof is required: Paint is a flammable chemical. When the paint reaches a certain concentration in the air, it will burn and explode when it encounters a high-temperature open flame. And Paint Booth is a place where paint does not exist all the time, and explosion proof led lights can meet this point of explosion and safety.

The fire hazard of the Paint Booth workshop is related to the type of paint used, the method and amount of Paint Booth used, and the conditions of the Paint Booth site. When flammable coatings and organic solvents are used, there is a greater risk of explosion and fire. Explosion and fire accidents will cause serious loss of life and property, and seriously affect the normal production of production.

Paint Booth lighting fixtures should be powered by explosion-proof lamps in hazardous areas, and the grade must be at least IIC explosion-proof: safe, explosion-proof, and energy-saving. The standard lighting voltage is AC 220V. According to special engineering needs, AC 127V or DC 36V may be used.

Part 4. CESP Explosion proof LED Lights for Spray Paint Booth

CESP LED explosion-proof lights have all obtained North American explosion-proof certification. Class I Division 2 LED explosion-proof lights and IECEx, ATEX Zone1 LED Lights are suitable for Spray Paint Booth Lighting.

CES-EX-LN-02P Series is more cost-efficient as the spray paint booth light, if you need a detailed lighting solution, please provide paint booth drawings, or the Booth Dimension. Our R&D department will provide professional lighting solutions for you.

Tab.: Spray Paint Booth Light, Paint Booth Lighting, Paint Spray Booth Lighting, Paint Booth LED Light Fixtures

1. Cold storage building and thermal insulation characteristics

Cold storage: a warehouse that uses cooling facilities to create suitable humidity and low temperature conditions. Also known as cold storage. It is a place for processing and storing products. It can overcome the influence of climate, prolong the storage period of various products, and regulate market supply.

Cold storage is a storage building group with artificial cooling and cooling functions, including warehouse, refrigeration room, power transformation and distribution room, etc. In order to ensure that the temperature in the cold storage room is maintained within the specified range, the building envelope is often set with a certain thickness of the thermal insulation layer according to the storage temperature requirements. The good flame retardant performance of thermal insulation materials is one of the important factors to decrease the fire accident of cold storage. Before the 1980s, the commonly used thermal insulation materials in cold storage were cork and rice husks. Because of its high moisture absorption, easy decay after pyrolysis, and easy decomposition and combustion at high temperature, it was gradually superseded by EPS,PU and XPS.

According to the different building structures, cold storage can be divided into civil cold storage, combined cold storage, mixed cold storage, etc. The civil cold storage adopts reinforced concrete as the support structure of the warehouse, and its enclosure structure is brick concrete material with additional thermal insulation material. The combined cold storage adopts light steel structure as the supporting structure of the building, and the insulation material (combined cold storage insulation board) with a certain thickness of steel plate attached on both sides is the enclosure structure of the warehouse. The hybrid cold storage is usually a multi-layer cold storage, its structure body is reinforced concrete, and the box body is made of composite cold storage insulation board.

2. Problems in cold storage

• Most warehouses use old-fashioned civil structures without beams
• Cold storage hall, platform design for open type
• Configuration of cold storage equipment
• Poor overall management of cold storage facilities
• Storage facilities backward
• Insufficient number of new combined cold stores

3. Common accidents in cold storage

• Fire accident

In recent years, there have been frequent fires in the freezing storage industry, especially in an explosion-proof cold storage last year, which caused a great number of casualties and caused great losses to the safety of people's lives and property.

• Refrigeration system accident

Nowadays, most refrigerators utilize freon refrigeration. Freon belongs to grade IV mild toxic substances. Now most refrigerators use freon refrigeration. Freon belongs to grade IV toxic substances. However, the content of freon in the air reaches a certain degree, which can cause asphyxia. When the concentration of ammonia in the air is between 16% and 25%, explosion accidents may occur in case of open fire . Due to the frequent occurrence of quality accidents in cold storage systems, compressor damage and refrigerant leakage, many losses have been caused to enterprises.

4. Cause analysis of common accidents

• Cause of fire accident

Combustibles, fire sources and combustion supporting materials are the three inevitable factors that cause the combustion of combustibles in a fire. As combustion supporting gas exists in the atmosphere, the causes of cold storage fire can only be analyzed from two aspects of combustible materials and fire source.

The thermal insulation materials for the pipes of cold storage buildings and equipment are the worst combustibles in the warehouse. Among the building materials used in the existing cold storage, the thermal insulation material of the cold storage has the highest combustion performance. Some common cases, such as Fengfeng poultry Co., Ltd. and Food Co., Ltd., are all caused by the burning of thermal insulation materials. In addition, in the early 1990s, the welding operation outside a prefabricated cold storage warehouse in a city caused a fire of the insulation material of the refrigeration pipeline, which rapidly expanded to the insulation wall of the cold storage along the insulation pipe, causing the cold storage fire and the steel structure of the cold storage collapsed. The main body of combustibles is the insulator.

The main causes of fire accidents in cold storage are electric gas welding, cutting operations, short circuits of cable, illegal use of open fire and so on. In 2015, there were 54 cold storage fire accidents, of which 65% were caused by electrical welding, cutting and other operations ;6% were caused by illegal use of open fire ;29% were caused by short circuit of electrical lines ;29% were caused by strong concealment; and 6% were caused by carelessness.

• Failure of refrigeration system

 The cause of failure of refrigeration unit can be divided into refrigeration system without reasonable maintenance, often small work, running with disease, after the construction of cold storage, must not ignore, resulting in equipment annual inspection is not up to standard, aging accelerated, Thus occurs the refrigeration system ammonia refrigerant exposure phenomenon. Secondly, the cold storage design project is not perfect, unlicensed design, no professional technology installation construction, some cold storage cost is low, some cold storage construction enterprises choose a large number of defective or second-hand materials, so that the safety of cold storage can not be effectively guaranteed.

 Normal use of cold storage fires, insufficient air, inadequate combustion, high carbon monoxide content. The acute lethal concentration of carbon monoxide is only 0.5, colorless and tasteless, and the activity is very strong. If the personal protection of firefighters is not in place, acute poisoning easily occurs. Accordingly, the equipment and facilities of the cold storage should select some mechanical products that meet the requirements of safety certification, such as UL、CSA、ETL、IECEx-CB certification, so as to avoid accidents caused by fire, poisoning and other auxiliary equipment caused by the equipment itself.

CESP explosion-proof linear lamp obtained ATEX/IECEx/UL certification, suitable for Zone1&21,Zone2&22 hazardous areas, can fully meet your advanced explosion-proof requirements. Die cast aluminum shell made of high technology core pulling system is used in the shell. At the same time, the engineer has carried out a special design to improve the heat dissipation effect and make the life of explosion-proof lamps longer, which can reach more than 50000 HRS. Linear explosion-proof light also uses high-quality LEDlm80 lamp beads, while saving energy and environmental protection, but also has strong light-effect lighting. Light reflection cup design, folding 120 degrees.

 With the increase of cold storage demand, the requirements for safety are gradually increasing. CESP focuses on the research and development, manufacture and sale of high-quality military patented products, it is a famous manufacturer OEM/ODM explosion-proof lamps in China and a supplier of lighting solutions in hazardous areas.

Description：With the continuous development of the cold chain logistics industry, the number of users who need to build cold storage is increasing. Once anything develops too fast, all kinds of malpractice will gradually emerge. Only in this way can the normal use of cold storage and the personal safety of employees be guaranteed.

Compact 20 Watt Led Tube Lamps T8 Explosion Proof For Cold Storage Food Factory for sale, China LED Tri Proof Lights wholesaler, China LED Tri Proof Lights manufacturer, China LED Tri Proof Lights exporter, China LED Tri Proof Lights company认证