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.
In terms of explosion-proof electrical testing institutions, Shenzhen Zhongnuo Testing Technology Co., Ltd. is a top choice. We specialize in providing on-site explosion-proof testing and改造 services for various gas stations, gas stations, oil depots, food factories, feed factories, and chemical plants.
Our inspection services are conducted strictly in accordance with relevant standards and regulations, including the selection, installation, wiring, static electricity, and grounding of explosion-proof equipment. After inspection, if there are any non-compliant items, we will provide specific rectification suggestions to ensure your equipment meets explosion-proof safety requirements.
Additionally, as per the requirements of AQ3009-2007 "Electrical Safety Explosion Proof Code for Hazardous Areas," explosion-proof electrical equipment in use must undergo a periodic explosion-proof performance, installation, and maintenance check at least every 3 years. Our experienced testing team and industry knowledge ensure we provide you with accurate and reliable test results and remedial recommendations.
If you have specific testing requirements or need further communication, please feel free to contact us at any time. We are committed to serving you wholeheartedly!

IECEx Certification
IECEx is an explosion-proof electrical product certification system promoted by the International Electrotechnical Commission (IEC), aimed at eliminating discrepancies in equipment and services used in explosive environments, facilitating international trade, while maintaining the level of equipment safety requirements. The current explosion-proof standard is IEC 60079. IECEx certification has become a pathway for products used in all hazardous areas to obtain international safety certification, and is now recognized in many parts of the world (including Australia, New Zealand, Brazil, Canada, China, Japan, South Korea, Malaysia, Singapore, South Africa, and the United States). Certificates issued by IECEx are automatically uploaded to the IECEx website, where manufacturers and end-users can access relevant documents.

What is an explosion-proof electrical installation qualification? How to apply for an explosion-proof installation qualification?
Certification for explosion-proof electrical equipment installation, maintenance, and repair technology training is one of the qualifications for companies in the field of explosion-proof electrical installation and construction.
Many clients engaged in installation and construction in explosive areas want to obtain such a certificate.
ZhongNuo Inspection briefly introduces the application process and requirements.
Currently, explosion-proof installation qualification certificates are issued by different authorities, with varying names, certificate samples, and application requirements.
Primarily, it involves training and examination methods, including company certificates and employee certificates. The training standards are the GB/T 3836 series.
As the applicant company through agency, ZhongNuo Inspection has cumulatively obtained the corresponding certificates for hundreds of client enterprises.
We schedule 1-2 training sessions and exams monthly, with full assistance in preparing the required documents and files.
Saves time and costs for a wide range of corporate clients.
Feel free to DM us anytime if you have a need for this!

Application Process for Explosion-Proof Certification at Shenzhen Zhongnuo Testing Technology Co., Ltd.
1. Conduct product evaluation and initial quotation for the applied products. Evaluate the product based on the company's product specifications, electrical schematics, and component list, determine the suitable type of explosion-proof certification for the product, and provide an initial quotation.
2. Offer samples for testing in the lab; the quantity of samples required varies depending on the product category.
3. Provide documentation list review
Application documents, including the applicant's basic information and product details
(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 the product should be written in the prescribed format, including not only the performance requirements of the product but also relevant content regarding explosion-proof aspects: such as basic parameters, explosion-proof markings, operating environmental conditions, 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 certificate for intrinsically safe electrical equipment, the applicant should provide assembly drawings, circuit diagrams, printed circuit board drawings, silk-screened 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 assembly drawing can clearly indicate the explosion-proof parameters and structure of the product, only the assembly drawing needs to be submitted for inspection.
C. Instruction Manual - The instruction manual should include basic parameters, explosion-proof markings, product外形 diagram, installation, maintenance instructions, order requirements, and clear warnings to the user 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 adhesives and casting agents. For plastic shell products, provide the material of the plastic and corresponding performance documents.
4. Certificate of Origin
Explosion-proof Certification Application Consulting Service - Shenzhen Zhongnuo Testing Technology Co., Ltd.