Hot work permit, height work permit – duration issues
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For projects with long operation cycles, what is the typical validity period for fire permits and height work permits? We offer three days and seven days; otherwise, a new contract must be signed
For regular production maintenance welding permits, the validity period is one month.
\"Safety Regulations for Hot Work in Chemical Production Units\" AQ3022-2008 8.4 Validity Period of the Work Permit 8.4.1 The validity period of the work permit for special hot work and class I hot work shall not exceed 8 hours. 8.4.2 The validity period of the ‘Work Permit’ for level 2 hot work shall not exceed 72 hours, and a hot work analysis shall be conducted prior to each day’s hot work. 8.4.3 If the hot work is carried out beyond its valid period, a new Work Permit must be obtained. \"Safety Regulations for Work at Heights in Chemical Production Units\" AQ3025-2008, 6.5: The validity period of the work permit is 7 days; if the work duration exceeds 7 days, re-approval is required. For projects with a long operation period, the person in charge of the construction unit should regularly conduct on-site inspections during that period, address any potential hazards promptly, and keep proper records. If there are significant changes in the operating conditions, a new Operation Permit must be obtained.
The validity period of the work permit should be determined based on the controlled time period; for example, if the personnel assigned to oversee the site work in shifts of eight hours each, then an eight-hour validity period is appropriate, with extensions granted thereafter. Of course, there must also be a procedure for delays
Fire work permits are classified into special grade, first grade, and second grade. Here, the requirement is that for special grade and first grade permits, the duration shall not exceed 8 hours, while for second grade permits it shall not exceed 3 days; there are further specific requirements as well； The validity period of a high-altitude work permit is usually 7 days, but in practice it is generally issued on a daily basis.
For Class A and Class B hot work, their duration cannot be defined based on a cycle. Unless it is in a designated hot work area; however, designated hot work areas usually use level 2 or none at all.
The Safety Specifications for Hot Work in Chemical Production Units AQ3022-2008 and the Safety Specifications for High-Height Work in Chemical Production Units AQ3025-2008 stipulate that 8.4.1 the validity period of the \"Work Permit\" for special hot work and Class I hot work shall not exceed 8 hours. 8.4.2 The validity period of the ‘Work Permit’ for level 2 hot work shall not exceed 72 hours, and a hot work analysis shall be conducted prior to each day’s hot work. 8.4.3 If the hot work is carried out beyond its valid period, a new Work Permit must be obtained. The validity period of the High-Altitude Work Permit is 7 days; if the work duration exceeds 7 days, re-approval is required