Shenzhen Zhongnuo Testing Technology Co., Ltd. is based in South China and specializes in explosion-proof certification and coal mine 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 important material for explosion-proof electrical equipment. When selecting transparent components, customers always inquire about the material to be used. Can it be glass? Can it be plastic?
Below, Shenzhen Zhongnuo Testing Technology Co., Ltd. explains to you.
GB/T3836.1 explicitly stipulates temperature thermal shock testing for transparent components, which is designed 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 a high cost-performance ratio.
普及 the fact that tempered glass, after being heated and then quenched, forms a uniform layer on the surface.
The compressive stress layer counters the tensile stress generated on the surface during rapid cooling. Therefore, even when subjected to stresses caused by rapid cooling, qualified tempered glass has a compressive stress layer to offset its effects.

Explosion-proof certification is a product certification designed for use in environments with flammable and explosive gases or dust.
What measures are taken for explosion-proofing in the products, which involves various explosion-proof protection types. Common ones include intrinsic safety, flameproof, positive pressure, increased safety, sealed type, and dust ignition-proof housing protection, etc.
In terms of explosion-proof protection principles, it's generally based on two methods: limiting spark energy and isolating flammable and explosive substances.
The type of explosion-proof design for the product depends on its electrical parameters, structure, working principle, and installation method, etc.
If you happen to have products that require explosion-proof certification, feel free to consult Shenzhen Zhongnuo Testing Technology Co., Ltd. at any time.
Shenzhen Zhongnuo Testing Technology Co., Ltd. offers design, testing, and certification guidance for explosion-proof products, as well as agency services for obtaining certifications. We specialize in intrinsically safe circuit design and products, providing consulting services such as intrinsically safe design, circuit evaluation, structural design, and drawing guidance. Our successful cases include various sensors, instruments, automation equipment, and robotic products.
Welcome to contact us for detailed communication at any time!

What test items are included in the explosion-proof certificate, and what are the requirements?
Explosion-proof is one of the most commonly used explosion-proof types in the market for explosion-proof products, adhering to the standards GB/T 3836.1 and GB/T 3836.2.
Primarily, explosion-proofing is achieved through the protection of a flame arrester housing.
The explosion-proof housing must have sufficient thickness and strength. Even if an explosion occurs inside the equipment, the flame will be extinguished due to the width, gap, and roughness of the housing's joint surfaces, preventing ignition of the external hazardous environment.
On the other hand, even if an explosion occurs in a hazardous area outside, the explosion-proof housing boasts anti-explosion properties.
Overall, the housing is both explosion-proof and shockproof, hence the equipment is rather bulky.
ZhongNuo Inspection has been dedicated to the explosion-proof field for many years, well-versed in the requirements of the GB/T 3836 series standards.
Extensive experience in the design and modification guidance for explosion-proof products, offering services such as explosion-proof housing design, drafting, certification, and drawing preparation.
If you have a certification need for this, remember to DM us!

Explosion-proof certification refers to a product certification for equipment and products used in flammable and explosive environments. To meet the requirements of explosion-proof certification standards, certain measures must be taken, which we call explosion-proof protection types. Common explosion-proof protection types currently include intrinsic safety, flameproof, positive pressure, and increased safety, among others.
Clearly, intrinsic safety is just one type of explosion-proof protection.
Different explosion-proof protection types have different design requirements for the product.
Intrinsically safe type is a type of explosion-proof protection that limits electrical energy, ensuring that even in the event of a fault, the energy produced is not sufficient to ignite the surrounding flammable and explosive environment. Therefore, intrinsically safe devices have specific limitations on electrical parameters such as current, voltage, capacitance, and inductance, and are generally suitable for low-power equipment. Additionally, there are clear requirements for the power supply method, plastic enclosures, and wireless transmission of intrinsically safe devices.
As a long-standing third-party organization specializing in explosion-proof certification, Shenzhen Zhongnuo Testing Technology Co., Ltd. boasts dedicated engineers in intrinsically safe circuit and structural design. We offer technical consultation on explosion-proof circuit design, drafting, and modifications, and have extensive experience in designing and obtaining certifications for intrinsically safe ia, ib, and ic classifications. If you require certification in this area, feel free to message us!
Explosion-Proof Certification Application Consultancy Services - Shenzhen ZhongNuo Testing Technology Co., Ltd.