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Novel grounded probe

A technology of grounding probes and probes, which is applied in the field of grounding probes, can solve the problems of weak connection, unavoidable poor contact between iron clips and probes, etc., so as to reduce the risk of work, shorten the time of grounding resistance, and improve work efficiency Effect

Inactive Publication Date: 2011-11-23
ZHUMADIAN POWER SUPPLY ELECTRIC POWER OFHENAN
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  • Abstract
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Problems solved by technology

[0005] At present, the connection method between the measurement line and the ground electrode of the probe adopts the iron clip connection structure. If the measurement line is connected to the conductive iron and clamped to the probe, it will inevitably face poor contact between the iron clip and the probe, and the connection is not firm. question

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Embodiment Construction

[0023] Depend on Figure 1-Figure 3 A new type of grounding probe shown includes a probe rod 5 with a needle point 6 at the bottom end. The needle point 6 of the probe rod 5 is a quadrangular pyramid with a taper of 25°. The upper part of the probe rod 5 is provided with a chuck and a handle, and the chuck is a hex nut 3 fixed on the top of the probe rod 5 . The probe rod 5 is provided with a measurement line jack 4 corresponding to the measurement line plug 7 . The handle includes a cross arm 1 and two pull rods 2 respectively connected to the two ends of the cross arm 1, the two sides of the cross arm 1 are arranged symmetrically with respect to the probe rod 5, and the ends of the two pull rods 2 are respectively hinged on both sides of the probe rod 5. Specifically, holes can be drilled on both sides of the probe bar 5, and the ends of the two lifting rods 2 can be inserted into the drilled holes of the probe bar 5 respectively to realize hinged connection, so that the ha...

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Abstract

The invention discloses a novel grounded probe, which comprises a probe bar that is provided with a needle tip on the bottom of the probe bar. A dop and a handle are arranged on the upper part of the probe bar; a jack of a measuring wire is arranged on the probe bar, wherein the jack corresponds to a plug of the measuring wire; the handle comprises a cross arm and two lifting poles that are connected to two sides of the cross arm; end portions of the two lifting poles are respectively hinged to two sides of the probe bar; the two sides of the cross arm are arranged symmetrically with respect to the probe bar. The invention relates to a novel grounded probe with a simple structure; the probe is convenient to be plugged from the ground surface and the measuring wire of the probe can be connected firmly.

Description

technical field [0001] The invention relates to a grounding probe used when measuring the grounding resistance of a tower. Background technique [0002] The tower grounding resistance refers to the resistance encountered when the current enters the earth through the tower grounding device and spreads to the surroundings. Reducing the grounding resistance of the tower can improve the lightning resistance level of the line, reduce lightning accidents, reduce the contact voltage and step voltage near the tower, and prevent electric shock accidents for humans and animals. The measurement method for measuring the grounding resistance of the tower is to untie the grounding electrode of the iron tower to be measured, and insert two auxiliary grounding probes on the side of the grounding electrode (tentatively called X) of the measured tower. The needle (called Y) is about 80 meters away from the ground electrode under test, and an auxiliary ground probe (called Z) farther away fro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R1/067G01R27/20
Inventor 李卫军黄恒硕刘伟
Owner ZHUMADIAN POWER SUPPLY ELECTRIC POWER OFHENAN
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