Explosion-proof Test Application Documents for Position Sensor, Shenzhen ZhongNuo Testing, Application Requirements

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.
Process for applying for an explosion-proof certificate at Shenzhen Zhongnuo Inspection & Technology Co., Ltd.
1. Conduct product evaluation and initial quotation for the applied products. Evaluate the product based on the company's product specification, electrical schematic, and component list, determining the appropriate type of explosion-proof certification suitable for the product and providing an initial quotation.
2. Offer samples for Testing at the lab; the quantity of samples required varies by product category.
3. Provide documentation list review
Application Documents, including Applicant's Information and Product Information
(2) Technical documents, including the submitted technical materials by the company, such as corporate standards or technical requirements, product drawings, user manuals, etc.
A. Company Standards/Technical Requirements: The company standards/technical requirements for products should be written in the prescribed format, including not only performance requirements but also relevant content regarding explosion-proof aspects: such as basic parameters, explosion-proof markings, environmental conditions of use, explosion-proof performance requirements, relevant tests for explosion-proof performance, and markings related to explosion-proof.
B. Product Drawings - When applying for a explosion-proof certification for intrinsically safe electrical equipment, the applicant should provide assembly drawings, circuit diagrams, printed circuit board drawings, silk-screening drawings, material lists of components, and label drawings, etc. For non-intrinsically safe electrical equipment, the technical documents submitted for inspection should include drawings that reflect the explosion-proof performance of the sample (including assembly drawings and component drawings). If the overall drawing can clearly indicate the explosion-proof parameters and structure of the product, only the overall drawing needs to be submitted for inspection.
C. Instruction Manual - The instruction manual should include basic parameters, explosion-proof symbols, product外形 drawings, installation, maintenance instructions, order requirements, and clear warnings to users regarding the importance of ensuring the product's explosion-proof performance during installation and use.
D. Other Information: For products with adhesive bonding or casting, provide the model names, performance descriptions, and relevant process documents for the adhesive and casting agents. For products with plastic casings, provide the material of the plastic and corresponding performance documents.
4. Issuance of Documents

Expiry Date of the Explosion-Proof Certificate and Renewal Issues
The domestic explosion-proof certification is valid for 5 years from the date of issuance.
If the certificate is due to expire, you may choose to renew it or replace it. When the expiration of the company's explosion-proof qualification certificate is approaching,
The company must submit an application letter for a certificate renewal within three months before and after the validity period, and must bring relevant documents to reapply for the certificate renewal.
International explosion-proof certificates, such as ATEX and IECEx, are valid for a specific period.
Because their method of evidence collection is by means of type testing.
A combination of product certification and factory production quality system audit.
Ensure the validity of the certificate.

The cost of obtaining explosion-proof certification at Shenzhen Zhongnuo Testing Technology Co., Ltd. is related to the following aspects:
1. Do you need a防爆合格证 or a防爆3C certification? If a防爆3C certification is required, a factory audit is necessary, which includes the audit fee, travel expenses for the auditor, the applying fee for the 3C certificate, and the Certificate fee.
2. Related to explosion-proof markings. Different explosion-proof markings indicate different explosion-proof items, which naturally vary in cost.
3. Domestic explosion-proof certification or international explosion-proof certification? The same explosion-proof mark, ATEX/IECEx certification is much more expensive than the domestic explosion-proof certificate, and it also requires factory audit. North American explosion-proof certification is even more costly, over $100,000+
4. Do you need a retest? Some customers' products have never been designed for explosion-proof, and they need to go through rectification when we get them, which adds to the cost. If the product includes a battery, battery testing is also an additional expense, especially for batteries that keep failing tests.
5. Needed or not. Labs are often booked solid, and there's often a waiting list. If needed, there will be a fee involved.

North American Explosion Proof Certification
North American Electrical Code Certification System (hereinafter referred to as NEC [National Electrical Code]) system
Classification of explosive materials, hazardous area delineation, explosion-proof protection methods.
There is a significant difference between the installation and wiring aspects and the explosion-proof certification system supported under our national standard system (hereinafter referred to as the GB system).
Currently, North American explosion-proof certification is divided into two major systems: Division and Zone. The Division system uses the explosion-proof marking native to the United States.
The Zone system adopts explosion-proof standards consistent with the IEC system.
Explosion-proof Certification Application Consultation Service - Shenzhen ZhongNuo Testing Technology Co., Ltd.