JDX-NL-10KV portable short-circuit ground wire use and maintenance
Use and maintenance:
Before using the portable short-circuit grounding wire, check the power before confirming that the power has been cut off and confirming that there is no voltage on the equipment. First connect the ground clamp to the grounding grid or flat iron, and then use the grounding operating rod to tighten the wire end to the device wiring. When removing a shorted ground wire, the sequence is exactly the opposite of the above.
The short-circuit grounding wire installed, and the distance between it and the charged equipment, taking into account the influence of the ground pendulum, the safety distance should not be less than the value specified in the new "Regulations on power safety work".
It is forbidden to use a winding method for short circuit to ground without using clamps.
If there is a grounding point at the suspension point, use a grounding clamp or dedicated copper rod for grounding connection; if no fixed grounding point is available, use a temporary grounding point, and the depth of the grounding electrode buried in the ground should not be less than 0.6m.
The portable short-circuit ground wire should be properly kept. Before each use, you should check carefully whether it is in good condition. The soft copper wire is not exposed and the nuts are not loose. Otherwise, they must not be used.
The inspection period of the portable short-circuit grounding line is once every five years, and the inspection item is the same as the factory inspection. After passing the test, the qualified short-circuiting grounding wire should be judged according to the magnitude of the short-circuit current and the visual inspection after being subjected to a short circuit, and should generally be scrapped.
The main components of this product are wire hook wires, or busbar flat wire clamps, short-circuit wire grounding tails, wiring noses, manifolds, grounding clamps or five anti-locking clamps, grounding steel cables, and grounding operating rods, etc. composition. The clamp is made of high quality ripe aluminum (or hot copper) die-cast surface polished and wire nose connected. The wire is an important part of the "portable short-circuit grounding wire". Grounding operating rod adopts imported glass fiber ring with mechanical strength and excellent insulation performance. Oxygen resin pipes are formulated according to the type requirements. Portable short-circuit grounding wire is divided into two types: phase separation type and phase type. Applicable voltage: 500V, 10kV, 35kV, 110kV, 220kV, 500kV, etc. Suitable for power plants, power supply, telecommunications, railways, subways and other substation users and construction units, and can also customize special specification grounding lines as required..........
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