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