Safety
Warnings
Safety distance from electrically conductive objects to overhead lines
Voltage
up to 1 kV
1 kV - 110 kV
110 kV - 220 kV
220 kV - 380 kV
Safety distance with C-nozzle for fire fighting operations on low-voltage systems
Voltage
Extinguishing sys-
tem
up to 1 kV
C-nozzle
C-nozzle
Safety distance with B nozzle when fire fighting on low-voltage systems
Voltage
Extinguishing sys-
tem
up to 1 kV
B nozzle
B nozzle
Safety distance with C-nozzle for fire fighting operations on high-voltage systems
Voltage
1 kV - 380 kV
Safety distance with B nozzle when fire fighting on high-voltage systems
Voltage
1 kV - 380 kV
14 / 245
Extinguishing sys-
tem
C-nozzle
C-nozzle
Extinguishing sys-
tem
B nozzle
B nozzle
Safety clearance
1 m (3 ft)
3 m (9 ft)
4 m (13 ft)
5 m (16 ft)
Extinguishing agent
Water spray jet
Full spray
Extinguishing agent
Water spray jet
Full water jet
Extinguishing agent
Water spray jet
Full spray
Extinguishing agent
Water spray jet
Full water jet
Safety distance
1 m (3 ft)
5 m (16 ft)
Safety clearance
11 m (36 ft)
15 m (49 ft)
Safety distance
5 m (16 ft)
10 m (32 ft)
Safety clearance
15 m (49 ft)
18 m (59 ft)