High-strength rubber insulated cable and manufacturing method thereof

A rubber-insulated, high-strength technology, applied in the direction of insulated cables, cable/conductor manufacturing, rubber insulators, etc., can solve problems such as not meeting market requirements

Inactive Publication Date: 2014-05-07
JIANGSU ZHENGTAI ELECTRIC CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The tensile strength of insulation and sheath rubber is not less than 23-27Mpa, while the tensile strength of current cables, insulation and sheath rubber is only between 6.5-18Mpa, which cannot meet market requirements

Method used

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  • High-strength rubber insulated cable and manufacturing method thereof
  • High-strength rubber insulated cable and manufacturing method thereof

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Embodiment Construction

[0030] Below in conjunction with accompanying drawing and specific embodiment, the present invention will be further described:

[0031] Such as figure 1 As shown, the high-strength rubber insulated cable includes a conductor 1, a wrapping polyester tape layer 2 is arranged outside the conductor 1, an insulating layer 3 is arranged outside the wrapping polyester tape layer 2, and a refractory layer 4 is arranged outside the insulating layer 3, A sheath 5 is arranged outside the refractory layer 4;

[0032] The conductor 1 is an oxygen-free copper TU tinned copper multiple stranded conductor 1;

[0033] The polyester tape layer 2 is a polyester film layer wrapped around the conductor 1;

[0034] The insulating layer 3 is an ethylene-propylene rubber insulating layer;

[0035] The refractory layer 4 is a refractory ceramic silicone rubber belt;

[0036] Described sheath 5 is ethylene-propylene rubber sheath 5;

[0037] The preparation method of the high-strength rubber ins...

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Abstract

The invention discloses a high-strength rubber insulated cable. The high-strength rubber insulated cable comprises conductors, wherein a wrapping polyester tape layer is arranged outside the conductors, an insulating layer is arranged outside the wrapping polyester tape layer, a fireproof layer is arranged outside the insulating layer, and a sheath is arranged outside the fireproof layer. The high-strength rubber insulated cable has the advantages that high strength is more than two to three times that of a traditional rubber insulated cable sheath, and the highest strength can reach 30 Mpa; the international advanced levels of low temperature resistance (minus 40 DEG C) and torsion resistance (minus 50 DEG C) are achieved; excellent resistance to light, heat, aging, oil, water, acid and alkali salt is obtained; flame retardance, cleanliness, environment friendliness and nontoxicity are achieved, and the flame retardance can reach the UL-Vo level; excellent thermoplastic processing performance is achieved, clean materials can be directly recovered and processed again, and the materials are saved; the small specific gravity is 0.91 g/cm<3> and is 0.64 time that of common rubber, the weight of the cable can be reduced, and very high cost performance is obtained; excellent electrical insulation performance is obtained; dielectric strength is greater than or equal to 20 kv/mm, and the volume resistivity at 20 DEG C is greater than or equal to 10<15> omega*cm.

Description

technical field [0001] The invention relates to the technical field of new material special cables, and relates to a high-strength ethylene-propylene rubber insulated cable and a manufacturing method thereof. Background technique [0002] With the technological development of the equipment manufacturing industry, a variety of new large-scale mobile machinery and equipment with high technical performance are constantly being updated. Facing the harsh environment in the port, mine, coal mining and subway projects, the supporting power cables are required to be of high quality. Soft, easy to move, torsional bending, fatigue resistance, with higher tensile strength of insulation and sheath rubber. And at present, the tensile strength of the insulation and sheath layer of rubber insulated cables is stipulated in the national standard between 6-15Mpa. The rubber cables, mining cables and marine cables produced by various manufacturers in the actual cable industry have passed the t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/18H01B3/28H01B7/04H01B7/28H01B7/295H01B7/29H01B13/26H01B13/10H01B7/02
Inventor 刘建超杨振涛姜淑媛徐辉
Owner JIANGSU ZHENGTAI ELECTRIC CABLE
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