What is the standard for à prova de explosão?

International explosion proof standards are used to ensure that equipment used in hazardous environments, such as those where flammable gases, dusts or vapors are present, will not cause an explosion. These standards are recognized globally, with different regions having their own systems, but with the same core objective of reducing the risk of explosion through technical means.

Specific requirements and standards for global explosion proof certification of luminaires may vary from region to region and from country to country.What is the standard for explosion proof lighting?

Below is an overview of some of the common global requirements and standards for explosion proof certification:

EU ATEX:

ATEX is the European set of directives for explosion proof equipment. Its name is derived from the French phrase “Appareils destinés à être utilisés en ATmosphères EXplosibles”, i.e. “Equipment for use in explosive atmospheres”. ATEX consists of two main directives:

ATEX 95 (ATEX 100a) – Directive 2014/34/EU: applies to equipment and protective systems for use in explosive atmospheres. The Directive sets out the essential health and safety requirements that must be met by equipment manufacturers, covering design, manufacture and testing.

ATEX 137 – Directive 1999/92/EC: applies to workplaces in explosive atmospheres. The Directive sets out the measures employers must take to ensure the safety and health of their employees, including risk assessment, classification of areas and appropriate safety training.

ATEX Certification (EU): ATEX (Atmosphères Explosibles) is the European Union’s certification requirement for equipment used in potentially explosive gases, vapors or dust environments. Its main standards include EN 60079-0 and EN 60079-1.

ATEX certification applies to EU member states and equipment must comply with these directives in order to be sold and used in the EU market.

UL North America

In North America (e.g., the U.S. and Canada), explosive substances are classified into three major categories, namely Class I (explosive gases), Class II (explosive dusts), and Class III (explosive fibers). Under each category is also subdivided into different groups, such as Class I is divided into Group A (acetylene), Group B (hydrogen) and so on.

The North American system will be divided into two levels of explosive hazardous locations, namely, Division 1 and Division 2. 1 (Division 1) that under normal operating conditions, explosive gases, dusts and flotsam may always or sometimes exist; 2 (Division 2) that under normal operating conditions, these substances are unlikely to be present.

UL Certification (U.S.): UL (Underwriters Laboratories) is a U.S. certification body that evaluates and certifies the explosion proof performance of lamps and luminaires. UL 844 is a commonly used standard for explosion proof lamps and luminaires.

CSA certification (Canada): CSA (Canadian Standards Association) is the Canadian certification body, the explosion proof performance of the lamps and lanterns to assess and certify the CSA C22.2 No. 137 is for the explosion proof lamps and lanterns commonly used standards.

China GB

China mainly adopts the division method of the Electrotechnical Commission (IEC), which divides explosive substances into three categories, i.e., mining methane (Class I), explosive gas mixtures (Class II), and explosive dusts and fibers (Class III). Each class is further subdivided under each category, e.g. Class II is divided into Class B (ethylene, etc.) and Class A (propane, etc.).

GB Standard (China): The Chinese National Standards Committee has issued a series of national standards on explosion proof lighting, such as GB 3836.1 and GB 3836.2. China will be divided into three explosive hazardous areas, namely, Zone 0 (Zone 0), Zone 1 (Zone 1/Zone 21), Zone 2 (Zone 2/Zone 22). These zones are based on the likelihood of explosive gases, vapors or dusts being present under normal operating conditions.

CIS Region

CU-TR certification for the CIS region (e.g. Russia, Belarus, etc.)

Introduction: The CU-TR certification is a certification of technical regulations of the Customs Union (including Russia, Belarus, Kazakhstan, Armenia and Kyrgyzstan).

Characteristics: Its certification mark is EAC, and the certification process is based on standards similar to those of the IEC.

Scope of application: For manufacturers of explosion protection products wishing to enter the Customs Union market.

IECEx

IECEx is the International Electrotechnical Commission (IEC) developed the international certification system for explosion proof equipment, full name “IEC System for Certification to Standards Relating to Equipment for Use in Explosive Atmospheres”. The system is designed to provide a globally consistent certification program to ensure the safety of equipment and services used in explosive atmospheres.

IECEx Certification (International): IECEx (International Electrotechnical Commission Scheme for Certification to Standards Relating to Equipment for Use in Explosive Atmospheres) is an international certification scheme for equipment for use in explosive gas and dust atmospheres. Commonly used standards include IEC 60079-0 and IEC 60079-1.

IECEx certification is globally recognized and is not only applicable in the European Union, but is widely used in other countries and regions, such as Australia, China and the Middle East, among many others.

Explosion protection certification in other countries and regions

Japan: TIIS (Japan Industrial Safety Technology Association) for the Japanese Ministry of Health, Labor and Welfare designated explosion proof electrical equipment certification bodies.

Korea: KC certification is applicable to the Korean market, manufacturers who have already obtained the IECEx certificate, with the certificate, test report and technical documents to apply for the Korean KC certificate.

UAE: ECASEx is a mandatory certification for electrical equipment used in potentially explosive atmospheres by ESMA, the Emirates Authority for Standardization and Metrology.

Brazil: The INMETRO mark is a mandatory certification under the authority of the National Audit Organization (INMETRO) in Brazil.

Australia and New Zealand: IECEx certificates are recognized directly.

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