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3
Maintenance and Management
3.1
Inspection
3.1.1
General
3.1.1.1
Perform an initial inspection before operating the facility or equipment.
3.1.2
Inspection grade
3.1.2.1
Inspection grade includes visual, close, or detailed inspection.See Figure 1,
Table 1.
3.1.2.2
Visual inspection and close inspection can be performed with the instrument
energized.Detailed inspections are usually carried out with the instrument
turned off.
3.1.3
Inspection type
3.1.3.1
Initial inspection verifies that the explosion-proof structure and installation
conditions of the equipment are appropriate.
3.1.3.2
Regular visual inspection or detailed inspection shall be conducted according
to Table 1, and additional detailed inspection may be required depending on
visual or close regular inspection.
3.1.3.3
Samples shall be inspected visually, closely or in detail, and the size and
composition of all samples shall be determined according to the purpose of
the inspection.
3.1.3.4
Continuous supervision using visual or close inspection in Table 1 shall be
conducted by skilled personnel. In the case of facilities that cannot be
continuously supervised, regular inspections shall be conducted, and the
results of all initial, regular, and sample inspections shall be recorded and
kept.
3.1.4
Staff
3.1.4.1
Understand the risk location classification, expertise, subject of inspection,
and risk location.
3.1.4.2
Ensure that you have technical knowledge and understanding of the
theoretical and substantive requirements and installation-related requirements
of electrical equipment and facilities used in explosion hazard locations.
3.1.4.3
Understand the visual, proximity and detailed inspection requirements related
to installed equipment and equipment.
