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Group-type voltage-withstanding test method

A test method and withstand voltage technology, applied in the direction of testing dielectric strength, fault location, etc., can solve the problems of not meeting the requirements of rapid group test of cable withstand voltage, not suitable for withstand voltage test methods, and not having waterproof performance, etc. Achieve the effect of shortening detection time, shortening processing time and easy operation

Inactive Publication Date: 2009-07-01
TIANJIN HUAZHIYANG SPECIAL CABLE
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  • Description
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  • Application Information

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Problems solved by technology

However, this test method is only applicable to the detection of cables with waterproof insulation layers, and the outer insulation layers of cables used in compressor devices are mostly fiber braided layers, which do not have waterproof performance, and immersion in water will cause Damage to the cable, so it is not applicable to existing voltage withstand test methods
Moreover, unlike the previous cable sampling test, the voltage resistance of each cable must be tested before leaving the factory for this kind of cable. The number of test pieces is large, and the traditional test method cannot meet the rapid group of voltage resistance of this cable. test requirements

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Embodiment Construction

[0022] The embodiments of the present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.

[0023] A group-type withstand voltage test method, including the steps of placing the tested cable 3 in the conductive medium of the test container 5, and the step of using the pressure device 1 to pressurize the tested cable, and the step of detecting cable defects, and its innovations In that: the method also includes the following steps:

[0024] Arrange the cables in bundles, such as figure 2 As shown in , the conductors at one end are connected to each other with conductive material 8, specifically: align one end of the cable with terminal 2 and arrange them in parallel, and use conductive material to connect the terminals connected to the end of the cable in sequence make them conduct each other.

[0025] Lay a cer...

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Abstract

The invention relates to a group type voltage resistance test method, comprising: arranging an object cable in the conducting medium of a test container; using a voltage supply device to add voltage on the object cable; and detecting the faults of the cable. The group type voltage resistance test method is characterized by further comprises: arranging the cables in beam type; communicating the conductors at one end via conducting materials; paving steel balls of a certain thickness to form a steel bal layer in the test container as a conducting medium; arranging the cable of beam type into the test container, to immerse the detection part of the cable in the steel ball layer; connecting the high voltage end of the voltage supply device with the conductors of the cable, and plugging the grounded end of the voltage supply device into the steel ball layer in the container. The group type voltage resistance test method has scientific and reasonable design, simple operation, high detection efficiency and accurate detection, which has high innovation.

Description

technical field [0001] The invention relates to a voltage withstand test method for cables, in particular to a group type withstand voltage test method. Background technique [0002] At present, in order to ensure the safety of the cable, it is necessary to conduct a sampling test on the withstand voltage of the cable before leaving the factory. Most of the existing test methods are: placing the cable in a container filled with a conductive medium, so that the conductive medium surrounds the cable around, and use a high-voltage generating device to apply high voltage to the cable to detect whether there is a defect in the cable. Most of the conductive medium is water. This method has the advantages of simplicity and accuracy. However, this test method is only applicable to the detection of cables with waterproof insulation layers, and the outer insulation layers of cables used in compressor devices are mostly fiber braided layers, which do not have waterproof performance, an...

Claims

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Application Information

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IPC IPC(8): G01R31/08G01R31/12
Inventor 金捷张立国刘家升
Owner TIANJIN HUAZHIYANG SPECIAL CABLE
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