A low voltage power cable

A low-voltage power and cable technology, used in power cables with shielding/conducting layers, insulated cables, flexible cables, etc., can solve problems such as limitations, and achieve outstanding fire resistance, outstanding bending performance, flexibility, and excellent electrical properties. performance effect

Active Publication Date: 2018-05-08
QINGDAO CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its biggest disadvantage is the existence of dendrite breakdown, which limits its use at higher voltages

Method used

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  • A low voltage power cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: as figure 1 As shown, the low-voltage power cable includes a stranded copper conductor 1, an aluminum-plastic composite tape shielding wrapping layer 2 wrapped outside the stranded copper conductor 1, and an insulating layer extruded outside the aluminum-plastic composite tape shielding wrapping layer 2 3. Tinned copper braided mesh shielding layer 4 wrapped outside the insulating layer 3, Teflon tape wrapping layer 5 wrapped outside the tinned copper braided mesh shielding layer 4, wrapped in Teflon tape wrapping layer 5 The outer steel wire armor layer 6 is extruded and wrapped in the outer sheath 7 outside the steel wire armor layer 6.

[0017] The low-voltage power cable, the cable material used for the insulation layer and the outer sheath are made through the following steps:

[0018] (1) 2.5 kg of nano-nano strontium titanate with an average particle size of 40nm, 4.7 kg of hydroxyapatite with an average particle size of 20um, 2.8 kg of nano-tungst...

Embodiment 2

[0023] Embodiment 2: as figure 1 As shown, the low-voltage power cable includes a stranded copper conductor 1, an aluminum-plastic composite tape shielding wrapping layer 2 wrapped outside the stranded copper conductor 1, and an insulating layer extruded outside the aluminum-plastic composite tape shielding wrapping layer 2 3. Tinned copper braided mesh shielding layer 4 wrapped outside the insulating layer 3, Teflon tape wrapping layer 5 wrapped outside the tinned copper braided mesh shielding layer 4, wrapped in Teflon tape wrapping layer 5 The outer steel wire armor layer 6 is extruded and wrapped in the outer sheath 7 outside the steel wire armor layer 6.

[0024] The low-voltage power cable, the cable material used for the insulation layer and the outer sheath are made through the following steps:

[0025] (1) 2 kg of nanometer strontium titanate with an average particle size of 40nm, 4 kg of hydroxyapatite with an average particle size of 20um, 2 kg of nano-tungsten car...

Embodiment 3

[0029] Embodiment 3: as figure 1 As shown, the low-voltage power cable includes a stranded copper conductor 1, an aluminum-plastic composite tape shielding wrapping layer 2 wrapped outside the stranded copper conductor 1, and an insulating layer extruded outside the aluminum-plastic composite tape shielding wrapping layer 2 3. Tinned copper braided mesh shielding layer 4 wrapped outside the insulating layer 3, Teflon tape wrapping layer 5 wrapped outside the tinned copper braided mesh shielding layer 4, wrapped in Teflon tape wrapping layer 5 The outer steel wire armor layer 6 is extruded and wrapped in the outer sheath 7 outside the steel wire armor layer 6.

[0030] The low-voltage power cable, the cable material used for the insulation layer and the outer sheath are made through the following steps:

[0031] (1) 3 kg of nanometer strontium titanate with an average particle size of 40nm, 5 kg of hydroxyapatite with an average particle size of 20um, 3 kg of nano-tungsten car...

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Abstract

The invention discloses a low-voltage power cable, which comprises a conductor, a shielding and wrapping layer, an insulating layer, a shielding layer, a wrapping layer, a steel wire armor layer and an outer sheath, wherein the shielding and wrapping layer wraps the outside of the conductor; the insulating layer wraps the outside of the shielding and wrapping layer in an extruding manner; the shielding layer coats the outside of the insulating layer; the wrapping layer wraps the outside of the shielding layer; the steel wire armor layer coats the outside of the wrapping layer; and the outer sheath coats the outside of the steel wire armor layer in an extruding manner. A special structure and a special cable material for the insulating layer and the outer sheath are adopted by the cable, so that the cable has the characteristics of high temperature resistance, ageing resistance, excellent electrical property and the like, also has very outstanding fireproof performance, can withstand certain water spraying and vibration of certain strength, has outstanding bending performance and flexible performance and can ensure that a circuit is not broken and is not in a short circuit. The cable has the characteristics of being flame-retardant, free of halogen and low in smoke, accords with the European Union ROHS instruction, and does not generate a corrosive and toxic substance or gas during combustion and does not generate a secondary hazard to affected people.

Description

technical field [0001] The invention relates to a cable, in particular to a low-voltage power cable. Background technique [0002] Power cables are cables used to transmit and distribute electrical energy. It is often used in urban underground power grids, outgoing lines of power stations, internal power supply of industrial and mining enterprises, and underwater transmission lines across rivers and seas. In power lines, the proportion of cables is gradually increasing. Power cables are cable products used to transmit and distribute high-power electric energy in the main lines of the power system, including 1-500KV and above various voltage levels and various insulated power cables. According to the voltage level, it can be divided into medium and low voltage power cables (35 kV and below), high voltage cables (above 110 kV), extra high voltage cables (275~800 kV) and extra high voltage cables (1000 kV and above). In addition, it can also be divided into AC cables and DC ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B7/29H01B7/295H01B7/18H01B7/04H01B9/02C08L83/07C08L9/02C08K13/02C08K3/24C08K3/32C08K3/14C08K3/34
CPCC08K2201/003C08K2201/011C08L83/04C08L2203/202H01B7/04H01B7/18H01B7/29H01B7/295H01B9/02C08L9/02C08K13/02C08K3/24C08K2003/325C08K3/14C08K3/34
Inventor 樊守明孙运东周鑫杨高林
Owner QINGDAO CABLE
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