CN205692602U

CN205692602U - A kind of communication base station lightning retardant cable

Info

Publication number: CN205692602U
Application number: CN201620591718.7U
Authority: CN
Inventors: 顾松林; 孙雷鸣
Original assignee: GUANGDONG GUODONG NETWORK COMMUNICATION Co Ltd
Current assignee: GUANGDONG GUODONG NETWORK COMMUNICATION Co Ltd
Priority date: 2016-06-15
Filing date: 2016-06-15
Publication date: 2016-11-16
Anticipated expiration: 2026-06-15

Abstract

This utility model relates to field of cables, it is specifically related to a kind of communication base station lightning retardant cable, including some insulated wire cores, insulated wire cores includes conductor, insulating barrier, the first screen layer, glide lamella the most successively, some insulated wire cores mutually twist together, and are followed successively by the first composite fire layer, inner sheath, secondary shielding layer, ground plane, the second composite fire layer, armor, outer jacket, bituminous coating outside insulated wire cores from inside to outside；First screen layer prevents electromagnetic interference between conductor, and with secondary shielding layer, lightning wave carries out double-deck isolation；Inner sheath is between the first composite fire layer and screen layer, and when preventing from being struck by lightning, inner sheath moment heats up and melts and be melt into an entirety with insulated wire cores and be not readily separated, and the phenomenon causing cable to be scrapped occurs, and after thunderbolt, inner sheath can solidify rapidly；Each metal level is in parallel, makes ground plane reach less resistance, and the probability that thunderbolt is blown is substantially reduced；Armor plays armouring, the effect hit against pressure, anti-.

Description

A kind of communication base station lightning retardant cable

Technical field

This utility model relates to field of cables, is specifically related to a kind of communication base station lightning retardant cable.

Background technology

Base station construction addressing mostly is spacious, highland or mountain area, with a varied topography and work under bad environment, and the equipment of base station is easy Being injured by thunder and lightning weather, once cable is struck by lightning, it will cause the heavy losses of communication equipment.

At present, the performance such as the most fire-retardant, fire-resistant, the flexibility of the consideration to communication base station cable both at home and abroad, not In view of defective communication equipment or cable self because of cable introducing thunder and lightning, communication network is caused to paralyse.Communication base station electric power System is generally low-pressure system, and for the lightning protection of low-pressure system, in addition to thunder and lightning is attacked directly, the most secondary that makes of damage effect is imitated Should, owing to thunder and lightning has high potential, large impact electric current, instantaneity, powerful lightning produces electrostatic field, alternating electromagnetic field And electromagnetic radiation, form Lightning Electromagnetic Pulse LEMP with mine transmitting device, earth potential counterattack etc., produce powerful Electromagnetic Field, The metal making surrounding produces induced potential and faradic current；The most serious disturbing is wireless, wire communication, on the other hand invades Enter the signal input port of microelectronic device, will make that microelectronic component is breakdown, burn, so that network paralysis is scrapped.And thunder and lightning tool Having and find the trend that impedance minimal path neutralizes with the underground charges of different polarity with thundercloud charge of releasing, cable sheath is the most aging and broken Damage, easily thunder and lightning is introduced, thus cause the damage of equipment.

Utility model content

The problem existed for prior art, this utility model provides a kind of communication base station lightning retardant cable, solves Cable is easily struck by lightning and is caused the problem of device damage, effectively prevents the damage that cable and equipment are caused by thunderbolt.

Concrete technical scheme is as follows:

A kind of communication base station lightning retardant cable, including some insulated wire cores, described insulated wire cores is the most successively Including conductor, insulating barrier, the first screen layer, glide lamella, some described insulated wire cores mutually twist together, described insulated wire cores Outside is followed successively by the first composite fire layer, inner sheath, secondary shielding layer, ground plane, the second composite fire layer, armouring from inside to outside Layer, outer jacket, bituminous coating；

Preferably, fill with packing elements between described first composite fire layer and described insulated wire cores, described filling unit Part is PP rope；

Preferably, together with described insulated wire cores is also stirred with some fiberglass-reinforced plastic levers；

Preferably, the described second composite fire layer of described first composite fire layer is by being followed successively by mica tape, fire-resistant outside interior Inorganic chopped fiber adhesive-layer, lapping layer；

Preferably, to be followed successively by aluminum-magnesium alloy wire, plastic-aluminum from the inside to the outside multiple for described first screen layer and described secondary shielding layer Close thin film, iron-nickel alloy band；

Preferably, described glide lamella is the macromolecule material film layer of low friction coefficient.

Beneficial effect:

This utility model arranges the first screen layer outside the insulating barrier of insulated wire cores, is on the one hand possible to prevent between conductor Electromagnetic interference, on the other hand produces bilayer isolation to the powerful Electromagnetic Field of generation during thunderbolt together with secondary shielding layer and makees With；Inner sheath is between the first composite fire layer and screen layer, and when effectively preventing thunderbolt, inner sheath temperature moment raises molten Changing and be melt into an entirety with insulated wire cores and be not readily separated, the phenomenon causing cable to be scrapped occurs, and after thunderbolt, inner sheath can With solidification rapidly；Owing to the contact surface of ground plane with secondary shielding layer and the second composite fire layer is all metal level, each metal Layer is equivalent to parallel connection, makes ground plane reach less resistance, and when accepting thunderbolt, the instantaneous caloric value of ground plane will be little, therefore The probability that thunderbolt is blown is substantially reduced；Between the second composite fire-proof layer and oversheath, install armor additional, prevent from being subject at oversheath Damage cable internals further when destroying to external force, play armouring, the effect hit against pressure, anti-；Colophonium outside oversheath is coated with Layer, effective anticorrosion also prevents the aging of outer jacket.

Accompanying drawing explanation

In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, the accompanying drawing in describing below is only It is embodiments more of the present utility model, for those of ordinary skill in the art, in the premise not paying creative work Under, it is also possible to other accompanying drawing is obtained according to these accompanying drawings.

Fig. 1: communication base station lightning retardant cable cross-sectional view.

Reference is as follows: 1, conductor, and 2, insulating barrier, the 3, first screen layer, 4, glide lamella, the 5, first composite fire layer, 6, inner sheath, 7, secondary shielding layer, 8, ground plane, the 9, second fire-resistant composite bed, 10, armor, 11, outer jacket, 12, Colophonium is coated with Layer, 13, packing elements, 14, fiberglass-reinforced plastic lever.

Detailed description of the invention

For making the purpose of this utility model embodiment, technical scheme and advantage clearer, real to this utility model below The technical scheme executed in example is clearly and completely described, it is clear that described embodiment is that this utility model part is implemented Example rather than whole embodiments.Based on the embodiment in this utility model, those of ordinary skill in the art are not making wound The every other embodiment obtained under the property made work premise, broadly falls into the scope of this utility model protection.

Referring to Fig. 1: a kind of communication base station lightning retardant cable, including some insulated wire cores, described insulated wire cores is from interior To including conductor 1, insulating barrier the 2, first screen layer 3, glide lamella 4 successively outward, described glide lamella 4 is the macromolecule of low friction coefficient Material film layers；Some described insulated wire cores mutually twist together, and described insulated wire cores is also moulded with some glass fiber reinforcement Material bar 14 stirs together, so arranges, effectively raises the tensile property of cable；Outside described insulated wire cores from inside to outside It is followed successively by the first composite fire layer 5, inner sheath 6, secondary shielding layer 7, ground plane the 8, second composite fire layer 9, armor 10, outer Sheath 11, bituminous coating 12；Fill with packing elements 13 between described first composite fire layer 5 and described insulated wire cores, described Packing elements 13 is restricted for PP, so can make insulated wire cores more rounding；Described in described first composite fire layer 5 second be combined resistance to Fire bed 9 is followed successively by mica tape, refractory inorganic chopped fiber adhesive-layer, lapping layer outside interior；Described first screen layer 3 and described Two screen layers 7 are followed successively by aluminum-magnesium alloy wire, plastic-aluminum combined thin film, iron-nickel alloy band from the inside to the outside.

Only in order to the technical solution of the utility model to be described, it is not intended to limit；Although with reference to previous embodiment to this reality It is described in detail with novel, it will be understood by those within the art that: it still can be to foregoing embodiments Described technical scheme is modified, or wherein portion of techniques feature is carried out equivalent；And these are revised or replace Change, do not make the essence of appropriate technical solution depart from the spirit and scope of this utility model each embodiment technical scheme.

Claims

1. a communication base station lightning retardant cable, it is characterised in that: including some insulated wire cores, described insulated wire cores is from interior To including conductor (1), insulating barrier (2), the first screen layer (3), glide lamella (4) successively outward, some described insulated wire cores are mutually twisted It is combined, outside described insulated wire cores, is followed successively by the first composite fire layer (5), inner sheath (6), secondary shielding layer from inside to outside (7), ground plane (8), the second composite fire layer (9), armor (10), outer jacket (11), bituminous coating (12).

2. communication base station lightning retardant cable as claimed in claim 1, it is characterised in that: described first composite fire layer (5) And filling with packing elements (13) between described insulated wire cores, described packing elements (13) is PP rope.

3. communication base station lightning retardant cable as claimed in claim 1, it is characterised in that: described insulated wire cores also with some glass Glass fiber reinforced plastics pole (14) is stirred together.

4. communication base station lightning retardant cable as claimed in claim 1, it is characterised in that: described first composite fire layer (5) Described second composite fire layer (9) is followed successively by mica tape, refractory inorganic chopped fiber adhesive-layer, lapping layer outside interior.

5. communication base station lightning retardant cable as claimed in claim 1, it is characterised in that: described first screen layer (3) and institute State secondary shielding layer (7) and be followed successively by aluminum-magnesium alloy wire, plastic-aluminum combined thin film, iron-nickel alloy band from the inside to the outside.

6. communication base station lightning retardant cable as claimed in claim 1, it is characterised in that: described glide lamella (4) is low friction The macromolecule material film layer of factor.