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A production method and cable technology, applied in the direction of insulated cables, cable/conductor manufacturing, cables, etc., can solve the problems of long time consumption, heavy weight, and long time consumption of cables, and achieve the effect of reducing the possibility and facilitating the welding operation of cables
Inactive Publication Date: 2012-10-24
CHENGDU DATANG CABLE
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Abstract
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Problems solved by technology
Due to the length and weight of the cables, it takes a long time to place the cables each time
In order to ensu
Method used
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Specific Example 1
[0129] Such as figure 1 As shown, a cable includes a first cable core 12, a second cable core 13, a first metal braid 7, a second metal braid 8, a first sheath 4, a second sheath 5, and a connecting strap 6;
[0130] The first cable core 12 includes multiple pairs of signal transmission lines 1 for signal transmission; each signal transmission line 1 is covered with an insulating layer 3, and each pair of signal transmission lines 1 are twisted with each other; all twisted pairs of signal transmission lines 1 are also twisted together;
[0131] The second cable core 13 includes a plurality of power transmission lines 2 for transmitting power; each power transmission line 2 includes a plurality of sub-power transmission lines 11 twisted with each other. All power transmission lines 2 are twisted together; and the outer surface of each power transmission line 2 is also wrapped with an insulating layer 3;
[0132] The first cable core 12 is placed in the first sheat...
Example Embodiment
Specific Example 2
[0138] Cable production methods, such as figure 2 As shown, including the following steps:
[0139] 201) Extruding the insulating layer on the outer surface of the signal transmission line;
[0140] 202) twisting each pair of the signal transmission lines with each other, and twisting all the twisted pairs of the signal transmission lines with each other to form the first cable core;
[0141] 203) Apply the water blocking filler to the outside of the first cable core;
[0142] 204) Spiral winding the water blocking tape outside the water blocking filler;
[0143] 205) Weaving the first metal braid on the outside of the water blocking tape;
[0144] 206) twisting a plurality of said sub-power transmission lines to form said power transmission line;
[0145] 207) Extruding the insulating layer on the outer surface of each power transmission line, and twisting all the power transmission lines together to form the second cable core;
[0146] 208) Weaving the second metal ...
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Abstract
The invention relates to the mining field, and in particular relates to a cable and a production method of the cable. The cable comprises a plurality of pairs of signal transmission lines and a plurality of power transmission lines, wherein the outer surfaces of the signal transmission lines and the power transmission lines are respectively covered with an insulating layer; the signal transmission lines are arranged in first jackets; the power transmission lines are arranged in second jackets; the first jackets are connected with the second jackets by connecting bands; and the inner walls of the first jackets and the second jackets are respectively covered with a metal braiding layer. The method comprises the steps of: extruding the insulating layers on the outer surfaces of the signal transmission lines and twisting in pairs; then, weaving first metal braiding layers outside the insulating layers, and extruding the first jackets; extruding the insulating layers on the outer surfaces of the power transmission lines and twisting in pairs; then, weaving second metal braiding layers outside the insulating layers, and extruding the second jackets; and connecting the first jackets and the second jackets by the connecting bands. After the cable and the production method of the cable are adopted, the cable laying time is shortened, and the cable laying cost is reduced under the condition that electromagnetic interference is not caused between the signal transmission lines and the power transmission lines.
Description
technical field [0001] The invention relates to the field of mining, in particular to a cable and a production method thereof. Background technique [0002] Existing cables can generally be divided into two types according to their uses, one is cables used to transmit signals such as voice, data and monitoring; the other is cables used to transmit power. This is because the cable used to transmit power is equipped with a power transmission line inside. Because the power transmission line needs to transmit a large current intensity, the electromagnetic field intensity generated is also strong; and the cable used to transmit voice, data and monitoring signals , the signal transmission line is set inside, and this signal transmission line cannot transmit signals normally in an environment with strong electromagnetic field strength, so these two transmission lines need to be laid separately to ensure that they do not interfere with each other. [0003] Laying cables in mining a...
Claims
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Application Information
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