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Discharge Rod 33KV, 66KV, 132KV, 220KV, 400KV

Discharge Rod 33KV, 66KV, 132KV, 220KV, 400KV product catalogue download


Earthing Discharge Rods [hot stick] is an insulated pole, usually made of fiberglass, used by electric utility workers when engaged on live-line working on energized high-voltage electric power lines. Depending on the tool attached to the end of the hot stick, it is possible to test for voltage, tighten nuts and bolts, apply tie wires (twisted lengths of ductile wire which fasten the running cable to its supporting insulators), open and close switches, replace fuses, lay insulating sleeves on wires, and perform various other tasks while not exposing the crew to a large risk of electric shock.


Earthing Discharge Rods [Hot sticks] are made in different lengths, from a few feet long up to telescoping types of 30 feet length. Because the fiberglass provides electrical insulation, the hot stick allows utility workers to safely perform operations on power lines without de-energizing them or while the state of the power line is not yet known. This is essential because certain operations (such as opening or closing combination fuse/switches) must occasionally be performed on an energized line.


Additionally, after a fault occurs, the exact state of a line may not be certain; in this case, for reasons of crew safety, the utility workers must treat the line as though it were energized until it can be proven that it is not and safety ground cables can be applied to the line (so that the line is guaranteed to remain grounded/earthed while maintenance is performed upon it). If power tools are fitted to the end of the hot stick, they are usually powered  hydraulically  rather than electrically because, like the fiberglass of the hot stick, the hydraulic fluid is also a good insulator. The hydraulic power is commonly supplied from the bucket truck (cherry picker or aerial work platform) supporting the workers.


The Earthing Discharge Rods [hot stick] not only electrically insulates the worker from the energized conductor, it provides physical separation from the device being operated, to reduce the chances of burns which might result from electrical arcing if there is a malfunction of the device being operated.











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