Nanyang Explosion Protected Electrical Apparatus Research Institute (CNEx) originated in the 1950s and was formally established in 1970. As China's premier scientific research institution, it specializes in explosion-proof technology R&D, standardization, product testing and certification, and mandatory industry administration. Through generations of relentless effort, exploration, and innovation, CNEX has tackled numerous fundamental and critical explosion-proof technology projects and developed a diverse range of series explosion-proof electrical products. These are widely applied across industrial sectors including coal mining, petroleum, chemicals, aerospace, grain and oil processing, textiles, pharmaceuticals, and military industries. CNEX has made significant contributions to China's national construction, development, opening-up, and the comprehensive building of a moderately prosperous society.
The Institute leads China's explosion-proof technology development and occupies the global high ground in the field. CNEX hosts several authoritative bodies:
• CNEX (Explosion proof electrical products CCC certification organization)
• SAC/TC9 (National Technical Committee for Explosion-proof Electrical Equipment Standardization)
• CEA Explosion-proof Motors Branch
• CES Explosion-proof Electrical Equipment Technical Committee
• CIS Explosion-proof Instrument Control and Functional Safety Branch
• CQST (National Center for Quality Supervision and Inspection of Explosion-proof Electrical Apparatus)
• National Center for Inspection Testing of Special Vehicle Performance
(Collectively known as "Four Committees & Two Centers")
Additionally, CNEX is recognized as a "National High-Tech Enterprise" and a "National Intellectual Property Advantage Enterprise."
Renowned globally for its talent pool, research prowess, testing capabilities, and innovation, CNEX holds internationally accredited statuses:
• IECEx Certification Body (ExCB)
• IECEx Testing Laboratory (ExTL)
• IECEx Recognized Training Provider (RTP)
• U.S. Department of Energy Authorized Motor Efficiency Laboratory
CNEX maintains reciprocal collaboration relationships with certification bodies from over ten countries—including UL (USA), PTB and DEKRA (Germany), DNV/Presafe (Norway), SIRA (UK), CCVE (Russia), TIIS (Japan)—mutually recognizing technical test reports. This enables CNEX’s test reports to serve as passports for domestic companies’ products entering not only the Chinese market but also the global market.
CNEX exemplifies being the “Standard-maker, Technology Innovator, and Explosion Safety Guardian.” Leading explosion-proof technology in China, guiding its development worldwide!
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CNEX Introduction.
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CNEX Qualification authorization.
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CNEX CCC certification development history.
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IEC/TC31 China Office
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Contact information for testing and certification services.