The installation of explosion-proof electrical equipment requires strict qualifications for both the company and the construction personnel. Currently, the required certification is the "Certificate of Competence for the Installation, Repair, and Maintenance of Explosion-Proof Electrical Equipment." This certificate is issued after the company's employees participate in training and pass the relevant examinations. The specific application procedures and requirements are as follows:

Application Requirements: The company must have at least three employees participate in and pass the training and examinations organized by the certification body.

Application Method: Currently, training is conducted online. After completing the training, participants must take an examination. The standards are based on GB/T3836.1-9, GB/T 3836.31, AQ3009-2007, etc.

Certificates Issued: Company certificate and individual certificates.

Certificate Validity: 3 years, renewal required upon expiration.

Issuing Bodies: Liaoning Explosion-Proof Institute, Shenyang Explosion-Proof Transmission Institute, Beijing Fangyuan CQM, Jiamusi Explosion-Proof Institute, Nanyang CNEX, etc.

Certificate Verification: Can be verified on the respective issuing body's website.

Agency: Shenzhen Zhongnuo Testing Technology Co., Ltd（STS）. We can assist in preparing the complete set of application documents, help liaise with the certification bodies, and provide training and exam preparation support to ensure our clients successfully obtain the "Certificate of Competence for the Installation, Repair, and Maintenance of Explosion-Proof Electrical Equipment." Training sessions are held 1-2 times a month on an irregular basis. Feel free to contact us anytime to discuss your application needs.