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Case Study 7: Overhead Crane Servicing and Maintenance
Incorrect. In this case, this activity would not be
covered.
The activity that resulted in the electrocution would be
covered by
29 CFR 1910.333, the Electrical-Safety-Related Work Practices standard. The
Lockout/Tagout standard under,
29 CFR 1910.147(a)(1)(ii)(C), specifies that the Lockout/Tagout standard does not
cover exposure to electrical hazards from work on, near, or with conductors or
equipment in electric utilization installations.
29 CFR 1910.333(b)(2) establishes lockout/tagout requirements for work on,
near, or with electrical conductors. Among these requirements are specific
provisions under
29 CFR 1910.333(b)(2)(iv) to verify that circuits and electrical equipment are
deenergized. These provisions include:
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(b)(2)(iv) - Verification of deenergized condition. The requirements of
this paragraph shall be met before any circuits or equipment can be considered
and worked as deenergized.
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(b)(2)(iv)(A) - A qualified person shall operate the equipment operating
the controls or otherwise verify that the equipment cannot be restarted.
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(b)(2)(iv)(B) - A qualified person shall use test equipment to test the
circuit elements and electrical parts of equipment to which employees will be
exposed and shall verify that the circuit elements and equipment parts are
deenergized. The test shall also determine if any energized condition exists
as a result of inadvertently induced voltage or unrelated voltage backfeed
even though specific parts of the circuit have been deenergized and presumed
to be safe. If the circuit to be tested is over 600 volts, nominal, the test
equipment shall be checked for proper operation immediately after this test.
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