33 71 49.13
Overhead Medium-Voltage Transmission Wiring
33 71 49
Medium-Voltage Transmission Wiring
33 71 39.33
Underwater High-Voltage Transmission Wiring
33 71 39.23
Underground High-Voltage Transmission Wiring
33 71 39.13
Overhead High-Voltage Transmission Wiring
33 71 39
High-Voltage Transmission Wiring
33 71 36.13
Overhead Extra-High-Voltage Transmission Wiring
33 71 36
Extra-High-Voltage Transmission Wiring
33 71 26.26
Potential Transformers
33 71 26.23
Current Transformers
33 71 26.16
Coupling Capacitors
33 71 26.13
Capacitor Banks
33 71 26
Transmission and Distribution Equipment
33 71 23.23
Potheads
33 71 23.16
Post Insulators
33 71 23.13
Suspension Insulators
33 71 23
Insulators and Fittings
33 71 19.33
Trenchless Electrical Underground Duct and Ductbanks
33 71 19.23
Trenched Electrical Underground Duct and Ductbanks
33 71 19.13
Electrical Manholes and Handholes