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Explosion proof certificate
Why do explosion-proof certification?
China's explosion-proof standards are basically formulated according to the International Electrotechnical Commission IEC standards.
The relevant parameters of the same version of the national standard are basically the same as those of the European standard, but due to the lag in time, the relevant parameters of the national standard are different from those of the European standard. Taking the gap of the flameproof joint surface as an example, the national standard IIAIIB implements different gap requirements respectively, while the IEC standard IIA and IIB have already implemented the same parameter requirements in the 2004 and 2007 editions.
However, the requirements of domestic explosion-proof standards are basically the same as those of IEC. China's GB3836 standard (gas) and GB12476 standard (dust) are directly adopted by IECEx explosion-proof standard.
How is the explosion-proof certification area divided?
China adopts and classifies the IEC equivalent method for explosive hazardous locations. According to the provisions of the national standard GB 50058-92, explosive gas hazardous sites are divided into Zone 0, Zone 1, Zone 2 and 3 levels according to their degree of danger:
(1) Zone 0: continuous or long-term occurrence of explosive gas mixtures in the environment;
(2) Zone 1: an environment where explosive gas mixtures may occur during normal operation;
(3) Zone 2: An environment in which explosive gas mixtures cannot occur during normal operation, or where explosive gas mixtures exist only for a short period of time.
Note: Zone 0, Zone 1, and Zone 2 are actually places where products are sold.
1. Flameproof type: explosion-proof mark "d", explosion-proof equipment is suitable for 1.2 areas. Flameproof products mainly consider the structure, shell part design;
2. Intrinsically safe type: explosion-proof mark "I", this explosion-proof type is only applicable to weak current equipment, applicable to 0.1.2. Intrinsically safe products mainly consider circuits, aiming at circuits. PCB circuit design.
Scope of application of explosion-proof certificate
The new implementation rules are divided into 17 product units:
1. explosion-proof motor: center height ≤ 160mm, or rated power ≤ 15kW, explosion-proof motor: 160mm
2. Explosion-proof electric pump
3. Explosion-proof power distribution devices, explosion-proof switches, control and protection products
5. Explosion-proof starter
6. Explosion-proof transformer
7. Explosion-proof electric actuator and solenoid valve
8. Explosion-proof plug-in device
9. Explosion-proof monitoring products
10. Explosion-proof communication and signal device
11. Explosion-proof air conditioning and ventilation equipment
12. Explosion-proof electric heating products
13. Explosion-proof accessories, Ex components
14. Explosion-proof instruments and meters
15. Explosion-proof sensor
16. Safety barrier
17. Explosion-proof instrument box.
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Explosion-proof certificate template
Tianhai Testing Laboratory
Tianhai testing is set up and operated in accordance with the laboratory accreditation system specification ISO 17025. The testing instruments are made up of Germany's Rohde & Schwarz, Switzerland's EMTEST, YYOKOGAWA, Agilent, Tektronix and other world's top instrument manufacturers. The equipment is advanced and sophisticated, the site environment control is reliable, traceability is strong, the technical team is senior and efficient, and close cooperation with international authoritative organizations is maintained.
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传导骚扰测试
Conduction immunity test
Electric fast pulse
Voltage drop test
传导骚扰测试
Conduction immunity test
Electric fast pulse
Voltage drop test
ENTERPRISE ADVANTAGE
Inspection Guarantee
Inspection and Testing Agency Qualification Certificate (CMA), American Laboratory Accreditation Association (A2LA); Government-approved third-party testing service agencies, in strict accordance with national standards for testing, issued a report with legal effect.
Quickly get the certificate.
55 engineers with more than 10 years of experience in EMC design and rectification, quickly out of the design; The introduction of German RS,SCHWARZBECK and Swiss TESEQ imported precision instrument testing, 24-hour operation, short test cycle, half an hour out of the program, 3 days to get the report.
Testing Laboratory
Has EMC electromagnetic compatibility, safety laboratory, 966 anechoic chamber, automotive electronics laboratory, medical electronics testing laboratory, 5G RF CCC laboratory, RF laboratory, private anechoic chamber laboratory, providing a wide range of testing; The laboratory has won CMA, A2LA and other qualifications;
Enterprise strength
15 years of industry experience, deep-rooted in the field of electromagnetic compatibility, efficient solution to product electromagnetic compatibility and other issues; National high-tech enterprise, with CMA and A2LA certificates, has been recognized by UL, TUV, Intertek, TIMCO, FCC, EMCC, NEMKO, SGS, etc. in the United States, serving the world.
