Safety Technology Exchange Edition: Daily Question (2016.5.12)
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Type: Fill-in-the-blank question. Question: [Safety Techniques for Temporary Electrical Use] 1. Temporary power sources should not be connected in operating production facilities, tank areas, or locations where there is a risk of fire or explosion. If it is necessary to do so, a ____ analysis of the surrounding environment must be conducted, and the results of this analysis must meet the requirements specified in 5.4.2 of these standards. 2. Temporary electrical installations should be equipped with protective switches, and the reliability of the electrical equipment and protective devices should be checked before use. All temporary electrical installations must be equipped with ____ protection. Flammable gas detection ； Grounding
Temporary power supplies should not be connected in operating production facilities, tank areas, and locations where there is a risk of fire or explosion. If such connections are necessary, the surrounding area must be tested for combustible gases, and the results of these tests must meet the requirements specified in 5.4.2. Temporary electrical installations should be equipped with protective switches; the electrical equipment and protective devices must be checked before use. All temporary electrical installations should be equipped with grounding protection
Flammable gas detection； Grounding protection
Temporary power supplies should not be connected in operating production facilities, tank areas, and locations where there is a risk of fire or explosion. If such connections are necessary, the surrounding area must be subjected to flammable gas detection and analysis. All temporary electrical installations must be equipped with grounding protection
1. Temporary power sources shall not be connected in operating production units, tank areas, and locations where there is a risk of fire or explosion. If such connections are necessary, a __combustible gas concentration__ analysis of the surrounding area must be conducted, and the results must meet the requirements specified in 5.4.2 of this standard. 2. Temporary electrical installations should be equipped with protective switches, and the reliability of the electrical equipment and protective devices should be checked before use. All temporary electrical installations must be equipped with __grounding__ protection.
Flammable gases-----Grounding
1. Temporary power supplies shall not be connected in operating production facilities, tank areas, and locations where there is a risk of fire or explosion. If such connections are necessary, _flammable gas detection_ of the surrounding area must be carried out, and the results of this detection shall meet the requirements specified in 5.4.2 of this standard. 2. Protective switches shall be installed for temporary electrical installations, and the reliability of the electrical equipment and protective devices must be checked before use. All temporary electrical installations must be equipped with _grounding_ protection.