Cable searching and identification method

An identification method and cable technology, applied in the direction of measuring electricity, measuring electrical variables, measuring devices, etc., can solve problems such as low safety factor, poor safety, and rising renovation costs, achieving good economic benefits, strong practicability, and saving renovation costs Effect

Inactive Publication Date: 2018-04-13
ANHUI MA STEEL EQUIP MAINTENANCE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, many production-oriented enterprises in China still use the early high-voltage power distribution facilities. Due to the needs of the production situation, the old high-voltage power distribution facilities can no longer meet the needs of production. Therefore, it is necessary to modify the high-voltage cabinets in the high-voltage power distribution facilities. , considering the cost saving factor, the high-voltage cables are generally rerouted without replacement during the transformation, which requires the original high-voltage cables to be pulled out to the high-voltage power distribution room. When passing through the wall of the high-voltage power distribution room, waterproof treatment is generally done, so that the high-voltage cables that need to be transformed are poured together in the cable trench with glue-mixed cement. A single cable cannot be identified and cannot be pulled out. The cable trench outside the wall of the high-voltage power distribution room disconnects the cables and then connects them with new cables. However, due to the production needs of the enterprise, all the power cannot be cut off, and the load must be reversed one by

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Experimental program
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Embodiment 1

[0040] Such as figure 1 and figure 2 As shown, the high-voltage cable 1 generally uses a three-core high-voltage cable to transmit high-voltage electricity. Each core 2 is connected to one phase of electricity, and the outer side of the three cores 2 is provided with a shielding layer 4. When transmitting high-voltage electricity, the shielding layer 4 Layer 4 grounding treatment, a cable search and identification method of the present invention, the cable is a high-voltage cable 1, and the method is used to select one or more high-voltage cables 1 from a number of high-voltage cables 1 at a designated position in the cable trench To search and identify, the specific steps are as follows:

[0041] Step 1: Prepare two wire calibration devices 3, one current generator 5, and one clamp ammeter 6;

[0042] Step 2: Specific search and identification process;

[0043] 1) According to the original electrical design drawing, determine the high-voltage cabinet and the load end corr...

Embodiment 2

[0054] Such as image 3 and Figure 4 As shown, the low-voltage cable 7 is generally composed of several wire cores 2 and a protective layer. Generally, no shielding layer is provided, and the low-voltage electricity is transmitted through the wire core 2; the present invention is a cable search and identification method, and the cable is a low-voltage cable 7 , the method is used to search and identify one or more low-voltage cables 7 from a plurality of low-voltage cables 7 at a designated position in the cable trench, and the specific steps are as follows:

[0055] Step 1: Prepare 2 wire calibration devices 3, 1 current generator 5, and 1 clamp ammeter 6;

[0056] Step 2: Specific search and identification process;

[0057] 1) According to the original electrical design drawing, determine the low-voltage power distribution cabinet and the load terminal connected to the two ends of the low-voltage cable 7 to be searched and identified in the cable trench, cut off the power...

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Abstract

The invention discloses a cable searching and identification method and belongs to the field of assembling of electrical equipment. By use of the method, in a designated position of a cable trench where high voltage cables are laid, a certain high voltage cable or low voltage cable or multiple high voltage cables or low voltage cables are searched and identified from multiple wound high voltage cables or low voltage cables, and by use of two cable checking devices, one current generator and one clamp-on ammeter, by carrying out cable disassembling, cable checking, measurement through electrification, shielding wire checking through scaling and secondary electrification single phase measurement and confirmation on the high voltage cables or the low voltage cables which are to be searched and recognized, searching and recognition of the high voltage cables or the low voltage cables are finished. According to the invention, the method is safe and reliable; the efficiency is high; searching processes can be finished only by use of a normal tool; and the method is low in cost and highly practical.

Description

technical field [0001] The invention belongs to the field of electrical equipment assembly, and relates to a cable search and identification method, in particular to a search and identification method for one or more high-voltage cables or low-voltage cables from among several high-voltage cables or low-voltage cables at a designated position in a cable trench Methods. Background technique [0002] At present, many production-oriented enterprises in China still use the early high-voltage power distribution facilities. Due to the needs of the production situation, the old high-voltage power distribution facilities can no longer meet the needs of production. Therefore, it is necessary to modify the high-voltage cabinets in the high-voltage power distribution facilities. , considering the cost saving factor, the high-voltage cables are generally rerouted without replacement during the transformation, which requires the original high-voltage cables to be pulled out to the high-v...

Claims

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Application Information

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IPC IPC(8): G01R31/02
CPCG01R31/60
Inventor 黄国强吴增杰陈帅
Owner ANHUI MA STEEL EQUIP MAINTENANCE CO LTD
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