Shenzhen Zhongnuo Testing Technology Co., Ltd. is based in South China and specializes in explosion-proof certification and coal safety certification application consulting services, offering one-stop explosion-proof technology consulting services.
Why choose tempered glass for explosion-proof transparent parts?
Transparent components are an essential material for explosion-proof electrical equipment. When selecting transparent components, customers always inquire about the material to be used? Is glass acceptable? Is plastic acceptable?
Below, Shenzhen Zhongnuo Inspection Technology Co., Ltd. explains it for everyone.
The GB/T3836.1 standard specifically outlines temperature thermal shock tests for transparent parts, aiming to verify the thermal stability of glass under rapid cooling conditions. Currently, toughened glass is a material that not only meets this requirement but also offers high cost-effectiveness.
普及 the fact that tempered glass, after being heated and quenched, forms a uniform layer on the surface.
The compressed stress layer counteracts the tensile stress generated on the surface during rapid cooling. Therefore, even when subjected to stress from rapid cooling, qualified tempered glass will have a compressive stress layer to offset its effects.

How to apply for an explosion-proof certification for a modular equipment?
Now, there is a growing number of combinational equipment used in explosion-proof areas to achieve more complex functions. In response to the technical requirements for explosion-proof certification of such equipment, ZhongNuo Testing has summarized years of industry experience, and the main points are as follows:
(1) Explosion-proof performance only considers the electrical section, including installation and connection between electrical components, grounding, etc., without considering the steel structure part.
(2) Electrical components must be purchased and installed with a防爆 certification or a防爆3C certificate. If suitable explosion-proof electrical components cannot be obtained, consider using隔爆/positive pressure methods for installation.
(3) The explosion-proof marking of the selected explosion-proof electrical components must not be lower than the explosion-proof marking grade of the entire machine.
(4) Explosion-proof electrical components must be installed, electrical connections, grounding, etc., in compliance with standard requirements.
In the field of obtaining certifications for assembled equipment, China Nuodi Inspection boasts a technical team and industry experience, capable of providing guidance on explosion-proof designs such as positive pressure and flameproof.
Guide customers in selecting electrical equipment, installation, and preparation of technical drawings and documents.
Engineers can be dispatched for on-site inspections to reduce customers' cost and time for evidence collection.
Successful certification cases include robots, AGV vehicles, industrial ovens, high and low-temperature chambers, filling machines, refueling machines, portable fueling units, chemical storage cabinets, dust removal equipment, etc.
Feel free to send us a private message for further discussion if you have a need in this area.

Why do companies need explosion-proof certification?
Blastproof certification refers to the process of determining if equipment meets blastproof standards, requiring type testing and issuance of relevant qualification certificates. It primarily targets Ex equipment or Ex components.
Explosion-proof products generally refer to explosion-proof electrical equipment: used in environments where explosions of gases or dust may occur.
Electrical products or components with explosion-proof functionality, capable of igniting surrounding explosive environments under specified conditions.
Safety of explosion-proof equipment is closely related to safe production, hence many implement explosion-proof certification systems for explosion-proof electrical products.
Explosion-proof products must obtain explosion-proof certification before they can be used in flammable and explosive hazardous areas.
The #explosion-proof certification# is essential for ensuring the safety of explosion-proof electrical products.
Certification for explosion-proof can facilitate product export and further enhance the credibility and reputation of the company and its products.
Enhance market competitiveness; certified companies can obtain explosion-proof certification domestically.

An explosion-proof type is a type of explosion-proof design for electrical equipment.
Its housing can withstand the entry of flammable and explosive mixtures into the housing through the housing joint surfaces or structural gaps, without damage even if an accident occurs internally.
And cause ignition of flammable and explosive gas atmospheres formed by one, several gases or vapors.
The explosion-proof housing must possess both explosion-proof and anti-explosion properties.
Explosion-proof product casings are typically heavy and suitable for products and equipment designed for fixed installations and use.
Explosion-proof interface width, gap, and roughness are the three key elements of explosion-proof housing design.
Design requirements for explosion-proof triad elements vary depending on the different flammable and explosive gas environments used in mining Class I, non-mining Class IIA, IIB, and IIC.
Please refer to the design standards of GB/T3836.1 and GB/T3836.2.
ZhongNuo Inspection has long been dedicated to explosion-proof product design, testing, and certification services. We have a specialized team in the explosion-proof field, well-versed in the requirements of explosion-proof standards. We offer services including explosion-proof housing design, drafting, modification guidance, and certification agency services.
If you have a similar need, feel free to send a private message to Shenzhen Zhongnuo Testing Technology Co., Ltd. at any time!
Explosion-proof Certification Application Consultancy Services - Shenzhen ZhongNuo Testing Technology Co., Ltd.