CN203950587U

CN203950587U - A kind of cold resistance high-temperature-resistant power cable

Info

Publication number: CN203950587U
Application number: CN201420345478.3U
Authority: CN
Inventors: 李小康; 陶天宝; 王敏; 方刚; 李业胜; 李业梅; 李强
Original assignee: Anhui Huatong Cable Group Co Ltd
Current assignee: Anhui Huatong Cable Group Co Ltd
Priority date: 2014-06-26
Filing date: 2014-06-26
Publication date: 2014-11-19
Anticipated expiration: 2024-06-26

Abstract

The utility model discloses a kind of cold resistance high-temperature-resistant power cable, it mainly comprises three groups of cable cores, be wrapped in three groups of surrounding layers outside cable core and 21 copper conductors that are extruded in surrounding layer inside.Described cable core center is set to aluminium alloy conductor, aluminium alloy conductor wraps up one deck nickel strap armour outward successively, one deck aluminium strip armour and one deck low-smoke halogen-free polyolefin restrictive coating, between described nickel strap armour and aluminium strip armour, be extruded with four nickel conductors, between described aluminium strip armour and low-smoke halogen-free polyolefin restrictive coating, extrude four tinned copper conductors, described surrounding layer is followed successively by silicone rubber insulation layer from inside to outside, aluminium strip screen, ethylene propylene rubber insulated layer and nickel strap armouring pe sheath layer, 21 copper conductors are divided into three groups and are evenly extruded in intersection between silicone rubber insulation layer and aluminium strip screen.The resistance to heat resistance of freezing of the utility model is good, ageing-resistant, can in-50～300 ℃ of environment, normal mounting move, and non-oxidizability is strong, has excellent electrical insulation properties.

Description

A kind of cold resistance high-temperature-resistant power cable

Technical field

The utility model belongs to field of cables, relates in particular to a kind of cold resistance high-temperature-resistant power cable.

Background technology

The industrial and mining enterprises of China's the northern province of, winter, during daytime equipment operation work more than ambient temperature Ke Da Baidu, equipment in night rear cable out of service is by the cold environment in subzero tens degree of temperature, in this special environment, need a kind of can be high temperature resistant, cable that again can be cold-resistant, to guarantee the normal operation of equipment under north of china in winter adverse circumstances.

Utility model content

In order to overcome the defect of above-mentioned prior art, the utility model provides a kind of cold resistance high-temperature-resistant power cable.

The utility model takes following technical scheme to realize: a kind of cold resistance high-temperature-resistant power cable, it mainly comprises three groups of cable cores, be wrapped in three groups of surrounding layers outside cable core and 21 copper conductors that are extruded in surrounding layer inside, described cable core center is set to aluminium alloy conductor, aluminium alloy conductor wraps up one deck nickel strap armour outward successively, one deck aluminium strip armour and one deck low-smoke halogen-free polyolefin restrictive coating, between described nickel strap armour and aluminium strip armour, be extruded with four nickel conductors, between described aluminium strip armour and low-smoke halogen-free polyolefin restrictive coating, extrude four tinned copper conductors, described surrounding layer is followed successively by silicone rubber insulation layer from inside to outside, aluminium strip screen, ethylene propylene rubber insulated layer and nickel strap armouring pe sheath layer, 21 copper conductors are divided into three groups and are evenly extruded in intersection between silicone rubber insulation layer and aluminium strip screen.

The utlity model has in sum following beneficial effect: the resistance to heat resistance of freezing of the utility model is good, ageing-resistant, can in-50～300 ℃ of environment, normal mounting move, non-oxidizability is strong, has excellent electrical insulation properties.

Accompanying drawing explanation

Fig. 1 is the utility model cross-sectional structure schematic diagram;

Wherein: 1, cable core; 11, aluminium alloy conductor; 12, nickel conductor; 13, tinned copper conductor; 14, nickel strap armour; 15, aluminium strip armour; 16, low-smoke halogen-free polyolefin restrictive coating; 2, silicone rubber insulation layer; 3, aluminium strip screen; 4, ethylene propylene rubber insulated layer; 5, nickel strap armouring pe sheath layer; 6, copper conductor.

Embodiment

As shown in Figure 1, a kind of cold resistance high-temperature-resistant power cable, it mainly comprises three groups of cable cores 1, be wrapped in three groups of surrounding layers outside cable core 1 and 21 copper conductors 6 that are extruded in surrounding layer inside, described cable core 1 center is set to aluminium alloy conductor 11, outer one deck nickel strap armour 14, one deck aluminium strip armour 15 and one deck low-smoke halogen-free polyolefin restrictive coating 16 of wrapping up successively of aluminium alloy conductor 11.

Between described nickel strap armour 14 and aluminium strip armour 15, be extruded with four nickel conductors 12.

Between described aluminium strip armour 15 and low-smoke halogen-free polyolefin restrictive coating 16, extrude four tinned copper conductors 13.

Described surrounding layer has four layers, is followed successively by from inside to outside silicone rubber insulation layer 2, aluminium strip screen 3, ethylene propylene rubber insulated layer 4 and nickel strap armouring pe sheath layer 5.

Embodiment: 21 copper conductors are divided into three groups and are evenly extruded in intersection between silicone rubber insulation layer 2 and aluminium strip screen 3.

Further, cable core 1 guiding center conductor is to make by aluminum-alloy wire is stranded, and aluminium alloy conductor 11 cross sections are less than 12 mm ², be greater than 10 mm ²; Four nickel conductors 12 are to make by nickel wire is stranded, and nickel conductor 12 cross sections are less than 10 mm ², be greater than 8 mm ²; Tinned copper conductor 13 is to make by tinned copper wire is stranded, and tinned copper conductor 13 cross sections are less than 8 mm ², be greater than 6 mm ²; Copper conductor 6 is to make by copper wire is stranded, and copper conductor 6 cross sections are less than 7 mm ², be greater than 5 mm ².

The above is the utility model embodiment, and the equivalence of doing according to structure, feature and principle described in the utility model application range therefore all changes or modifies, and is included in the utility model patent claim.

Claims

1. a cold resistance high-temperature-resistant power cable, it mainly comprises three groups of cable cores, be wrapped in three groups of surrounding layers outside cable core and 21 copper conductors that are extruded in surrounding layer inside, it is characterized in that: described cable core center is set to aluminium alloy conductor, aluminium alloy conductor wraps up one deck nickel strap armour outward successively, one deck aluminium strip armour and one deck low-smoke halogen-free polyolefin restrictive coating, between described nickel strap armour and aluminium strip armour, be extruded with four nickel conductors, between described aluminium strip armour and low-smoke halogen-free polyolefin restrictive coating, extrude four tinned copper conductors, described surrounding layer is followed successively by silicone rubber insulation layer from inside to outside, aluminium strip screen, ethylene propylene rubber insulated layer and nickel strap armouring pe sheath layer, 21 copper conductors are divided into three groups and are evenly extruded in intersection between silicone rubber insulation layer and aluminium strip screen.