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 a one-stop explosion-proof technology consulting service.
Is " intrinsic safety certification" the same as "explosion-proof certification"? What are the differences between them?
Explosion-proof certification refers to a safety certification for equipment and products used in explosive hazardous areas.
Products must take certain measures to meet the requirements of explosion-proof certification standards; we refer to these as explosion-proof protection types.
Common explosion-proof protection types include intrinsic safety, flameproof, positive pressure, and increased safety, etc.
Clearly, intrinsically safe is just one type of explosion-proof protection.
Different explosion-proof protection types have different design requirements for the product.
intrinsic safety is achieved by limiting electrical energy, even in the event of a fault.
A type of explosion-proof protection that the energy produced is not sufficient to ignite the surrounding explosive environment.
Therefore, intrinsic safety requirements limit the current, voltage, capacitance, inductance, etc., of electrical equipment, and are generally suitable for low-power devices.
Additionally, specific requirements are in place for the power supply method of intrinsically safe equipment, the material of the housing, and wireless transmission.
As a long-standing third-party consulting agency specializing in explosion-proof certification.
ZhongNuo Inspection has dedicated engineers specializing in intrinsic safety circuit and structural design.
We offer technical consulting services for explosion-proof circuit design, drafting, and modifications.
We have extensive design and certification experience for explosion-proof classifications A, B, and C.
If you require certifications in this area, feel free to send us a private message!

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 ask what material should be used? Can glass be used? Can plastic be used?
Below, Shenzhen ZhongNuo Inspection & Technology Co., Ltd. explains.
GB/T3836.1 clearly stipulates the thermal shock test for transparent parts, which aims to verify the thermal stability of glass under rapid cooling conditions. Currently, tempered glass is a material that not only meets this requirement but also offers high cost-performance.
普及 the fact that tempered glass, after being heated and then cooled, 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 stress from rapid cooling, qualified tempered glass has a compressive stress layer to offset its effects.

What is the relationship between the explosion-proof certificate and the explosion-proof CCC certification?
The explosion-proof certificate and explosion-proof 3C certification are for different types of explosion-proof products.
Explosion-proof 3C Certification is applicable to products listed in the Explosion-proof 3C Catalogue. There is a dedicated product directory for Explosion-proof 3C.
Products listed in the catalog undergo explosion-proof 3C certification, adopting the "Product Testing + Factory Audit" model.
Both type tests of the product and on-site factory audits are required.
Ex-proof certificate for products not listed in the Ex-proof 3C catalog.
The certification model involves product testing; upon passing the test, a frequent issuance of explosion-proof certification is allowed.
Of course, products outside the explosion-proof 3C catalog can also apply for the explosion-proof certificate alone, but there's a risk of being penalized by market regulation.
This is for the customer to consider.
For more details, please feel free to contact Shenzhen ZhongNuo Testing Technology Co., Ltd. for further communication!

What products can apply for the intrinsically safe explosion-proof certification? What are the requirements?
Blastproofing is one of many explosion protection types, which limits electrical energy so that the equipment can still function even in the event of a fault.
A type of explosion-proof protection that generates insufficient energy to ignite the surrounding explosive environment.
Therefore, intrinsically safe types have restrictive requirements for electrical equipment's current, voltage, capacitance, inductance, etc., and are only suitable for low-power equipment.
Additionally, there are clear requirements for the power supply method of intrinsically safe equipment, plastic enclosures, and wireless transmission.
The product application for intrinsic safety certification requires the submission of the product's schematic diagram, PCB diagram, etc.
ZhongNuo Inspection has dedicated engineers specializing in intrinsically safe circuit and structural design, offering technical consultation on explosion-proof circuit design, drafting, and modifications.
We have extensive design and certification experience for explosion-proof ratings of ia, ib, and ic.
If you need certifications in this area, welcome to message Shenzhen ZhongNuo Testing Technology Co., Ltd. directly!
explosion-proof certification application consulting service - Shenzhen Zhongnuo Inspection Technology Co., Ltd.