Normally live parts which are to be grounded should next be tested for any indication of voltage, the employe carefully keeping portions of his body at the distance required from such parts when alive by the use of suitable insulating rods or handles of proper length, or other suitable devices.
34 Pa. Code § 39.403
This section cited in 34 Pa. Code § 39.336 (relating to live and arcing parts); 34 Pa. Code § 39.384 (relating to station protective grounds); 34 Pa. Code § 39.401 (relating to general provisions); 34 Pa. Code § 39.411 (relating to general provisions); 34 Pa. Code § 39.421 (relating to general provisions); 34 Pa. Code § 39.431 (relating to general provisions); 34 Pa. Code § 39.441 (relating to general provisions); 34 Pa. Code § 39.442 (relating to precaution on series circuits); 34 Pa. Code § 39.451 (relating to general provisions); and 34 Pa. Code § 39.461 (relating to general requirements).