The person in charge of the workshop (director and deputy director) shall make a safety disclosure to the operators after conducting a comprehensive inspection and confirmation on the site, and approve the operation and sign it. During the absence of the workshop director, it shall be approved by the personnel on duty. The signature of the confirmer in Confined Space Operation Confirmation Sheet must be the confirmer's own signature. Limited space refers to a closed or partially closed space, with narrow entrances and exits, not designed as a fixed workplace, and poor natural ventilation, which may easily lead to the accumulation of toxic, harmful, flammable and explosive substances or insufficient oxygen content. Limited space operation refers to the operation activities of workers entering a limited space. Generally, workplaces in limited spaces contain various gases such as hydrogen sulfide, carbon monoxide, carbon dioxide, ammonia, methane (biogas), hydrogen cyanide, etc., among which asphyxiating gases such as hydrogen sulfide and carbon monoxide are particularly prominent.

Initiate the application for approval of confined space operations in office OA. At the time of application, the completed Confirmation Form of Limited Space Operation Conditions will be converted into an electronic version and uploaded as an attachment. If there is no confirmation form, it will not be approved; You can't start work until the approval is completed. After examination and approval, the applicant and the examination and approval unit shall file the Confirmed Form of Limited Space Operation Conditions and the Approval Form of Limited Space Operation. And before entering the confined space for operation, the concentration of harmful gas shall be detected again, and the operation can only be carried out if it meets the requirements. In any of the following circumstances, the person in charge of the site shall immediately cancel the operation and notify the approver. If it is really necessary to continue to operate, it shall be re-examined. When issuing a work permit, the person in charge of the operation department shall confirm the operation procedures and safety measures, and then the safety management personnel shall be responsible for handling the permit. How to apply for a work permit in a confined space

1. The first department to enter the confined space applies for the Permit to Enter the Confined Space;

2. The person in charge of the operation department shall confirm and sign the operation procedures and corresponding safety measures, and the Minister of Safety and Environment shall issue the Permit for Working in Confined Space, which shall be approved by the supervisor in the absence of the Minister of Safety and Environment;

3. The person in charge of the operation department and the safety supervisor shall disclose the operation procedures and safety measures to the operators, designate the operation guardian, and supervise the whole process of confined space operation on site;

4. After the confined space operation is completed, the person in charge of the operation shall cooperate with the operation guardian to carry out the completion acceptance, and sign in the completion acceptance column of the Confined Space Operation Permit.

Legal basis:

Interim Provisions on Safety Management and Supervision of Limited Space Operation in Industry and Trade Enterprises

Article 5 An industrial and trade enterprise operating in a limited space shall establish the following safety production systems and rules and regulations: (1) The responsibility system for safety operation in a limited space; (two) the examination and approval system for limited space operations; (three) the safety management system of the limited space workplace; (four) the safety training and education system for the person in charge, guardian, operator and emergency rescue personnel in the limited space workplace; (5) Emergency management system for confined space operations; (6) Safety operation procedures for confined space.