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 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 1910.333(b)(2)(iv) to verify that circuits and electrical equipment are deenergized. These provisions include:

1. (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.
2. (b)(2)(iv)(A) - A qualified person shall operate the equipment operating the controls or otherwise verify that the equipment cannot be restarted.
3. (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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