Grounding Discharge Stick with Wire

Grounding Discharge Stick With Wire introduction: High-voltage grounding wire is used in power line and substation construction to prevent electrostatic induced electric shock caused by electrified body nearby or ensure safety in case of false switching. Structure: Portable high-voltage...

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Grounding Discharge Stick With Wire introduction:

High-voltage grounding wire is used in power line and substation construction to prevent electrostatic induced electric shock caused by electrified body nearby or ensure safety in case of false switching.


Structure:

Portable high-voltage grounding wire consists of insulating rod, wire clamp, short-circuit wire, grounding wire, grounding terminal, bus clamp and ground clamp.

 

Check power supply is cut off and the equipment is free of voltage prior to use of portable short-circuit grounding wire; connect the ground-end wire clamp to the grounding net or flat iron piece, then use the operating rod to tighten the wire-end clamp to the equipment wire; follow the reverse order for removal of short-circuit grounding wire.


Technical parameters:

(A-Used for copper bar and aluminum bar in switch cabinet)

Model

Operating voltage class (KV)

Clamp distance/width(mm)

Rated short-circuit current(KA/1S)

Cross section of matched short-circuit wire (mm2)

XJ-1

0.4~10

30/45

6.5

25

XJ-2

10~110

40/50

9

35

XJ-3

110~220

45/70

13

50

XJ-4

0.4~10

15/45

6.5

25

(B—Used for round wire for outdoor power transmission and transformation lines)

Model

Operating voltage class(KV)

Clamp distance/width(mm)

Rated short-circuit current (KA/1S)

Cross section of matched short-circuit wire(mm2)

XJ-5

10~110

25~400

9

35

XJ-6

110~220

400~600

13

50

XJ-7

10~110

25~400

6.5

25

XJ-8

220~500

400~600

13

50

 

Use and maintenance:

In consideration of grounding wire swing, safety distance between the mounted short-circuit grounding wire and electrically charged equipment should be no lower than the value specified in the Safety Code of Electric Power Industry.

 

It is prohibited to conduct ground short-circuiting by using the winding method but not wire clamp.

If there is grounding point at the suspension point, ground-end wire clamp or the dedicated copper bar should be used for grounding connection; if there is no grounding point available, temporary grounding electrode may be used as the temporary grounding point, which should be buried in depth over 0.6m.

 

Keep the portable short-circuit grounding wire properly, and check it is in good condition, annealed copper wire is not exposed and nut not loosened prior to each use; otherwise, the grounding wire should not be used.

 

The inspection cycle of portable short-circuit grounding wire is five years, and the items of inspection are the same with that of delivery inspection. After short-circuiting, the qualified portable short-circuit grounding wire should be checked by short-circuit current test and visual inspection, and be discarded generally.

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