| work on or near an electrical installation where an electrical hazard is present and for which the worker possesses technical knowledge and experience in dealing with electricity|
Note 1 to entry: Electrical work includes such work as testing and measuring, repairing, replacing, modifying, extending, erection and inspection.
Note 2 to entry: Workers undergoing training who are suitably supervised can undertake electrical work subject to national rules and regulations.
Note 3 to entry: This entry was numbered 651-01-12 in IEC 60050-651:1999. It has been modified to suppress a requirement.