Table 2
Minimum Clearances from Power Lines Insulated
Lines
Voltage | Minimum distance | Alternatives |
Less than 300 volts | 3 feet (0.9 m) | ---- |
300 volts to 50 kv | 10 feet (3.1 m) | ---- |
More than 50 kv | 10 feet (3.1 m) plus 0.4 inches (1.0 cm) for each 1 kv over 50 kv | 2 times the length of the line insulator, but never less than 10 feet (3.1 m) |
Table 3
Minimum Clearances from Power Lines Uninsulated
Lines
Voltage | Minimum distance | Alternatives |
Less than 50 kv | 10 feet (3.1 m) | ---- |
More than 50 kv | 10 feet (3.1 m) plus 0.4 inches (1.0 cm) for each 1 kv over 50 kv | 2 times the length of the line insulator, but never less than 10 feet (3.1 m) |
follow these procedures when window cleaners need to get closer to power lines than allowed in Tables 2 and 3:
Wash. Admin. Code § 296-878-17005
Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and 49.17.060. 02-22-027, § 296-878-17005, filed 10/28/02, effective 1/1/03.