CN204632372U - A kind of fire-proof and explosion-proof cable - Google Patents

A kind of fire-proof and explosion-proof cable Download PDF

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Publication number
CN204632372U
CN204632372U CN201520142675.XU CN201520142675U CN204632372U CN 204632372 U CN204632372 U CN 204632372U CN 201520142675 U CN201520142675 U CN 201520142675U CN 204632372 U CN204632372 U CN 204632372U
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China
Prior art keywords
proof
fire
explosion
cable
water
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CN201520142675.XU
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Chinese (zh)
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吴新钿
吴晶
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SHANGHAI PACIFIC ELECTRIC WIRE & CABLE Co Ltd
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SHANGHAI PACIFIC ELECTRIC WIRE & CABLE Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/14Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables

Abstract

The utility model relates to field of cable technology, a kind of fire-proof and explosion-proof cable specifically, comprise conductor and fixture, described conductor adopts that some copper wires are stranded to be formed, fire-proof and water-proof insulating barrier is wrapped up outside conductor, gap-fill explosion-proof lamp between the wire of parcel fire-proof and water-proof insulating barrier, outside interior, wrap up fire-proof and water-proof insulating layer, total screen and external sheath layer successively again, described fire-proof and water-proof insulating layer bonds aluminium foil again after adopting ceramic fiber paper back adhesive glass fabric and forms.The construction of cable of the present utility model adopts sandwich construction parcel conductor to form, rational in infrastructure, can reach explosion-proof, fire prevention, waterproof effect, explosion-proof performance safety and stability; Fire-proof and water-proof insulating layer wherein after ceramic fiber paper back adhesive glass fabric, bonds aluminium foil again form, and refractory temperature is high, and thermal insulation is effective, and quality of materials is light, quality is soft, alleviates the weight of whole cable, make the easy mounting and installation of cable and bend, convenient transportation.

Description

A kind of fire-proof and explosion-proof cable
[technical field]
The utility model relates to field of cable technology, specifically a kind of fire-proof and explosion-proof cable.
[background technology]
Along with the fast development of national high-technology industry, China progressively goes on new road toward industrialization, for adapting to market development, the electrical apparatus for explosive atmospheres adapted also will significantly increase, this will propose more demand to electrical apparatus for explosive atmospheres, but supporting auxiliary material as the development of anti-explosion cable etc. always delayed not before.Anti-explosion cable major requirement reaches following several respects requirement of explosion proof: be on the one hand that this cable can meet and works under 180 DEG C of hot environments for a long time; Extreme at some special gas on the one hand in addition, the requirement of short time normal work under the high pressure conditions steam ambient more than 180 DEG C can be met.
Existing anti-explosion cable structure is made up of conductor and insulating barrier usually, its insulating barrier generally adopts PVC polyvinyl chloride or XLPE cross-linking polyethylene materials to be made, the insulating barrier resistance to elevated temperatures adopting PVC polyvinyl chloride or XLPE cross-linking polyethylene materials to make is poor, security reliability is poor, useful life is short, and cost performance is low; Or wrapped layer of non-woven fabric after stranding is filled, this construction of cable is simple, and shield effectiveness is poor, and tensile strength is also undesirable, does not have explosion prevention function, easily produces electric discharge, leaky, there is serious potential safety hazard.
And the existing cable with fire-proof function, fireprotection layer is all generally select mica tape or silicon rubber pottery mud or magnesium oxide, but these quality of materials weights, easy solidification, easily ftracture when after solidification, cable is installed bending, discharge a large amount of harmful poisonous aerosol gases during burning, production material technology is simultaneously complicated, easily to environment; And not long by the cable production length of above manufacture of materials, electric cable with large cross-section can not make one, cable quality weight, and cable pliability is poor, all brings great inconvenience to installation and transportation, and Cable Bending Radius is large, extrudes the defects such as easy core shift.
[summary of the invention]
The purpose of this utility model is the technical barrier that the shield effectiveness in order to solve above-mentioned anti-explosion cable is poor, security reliability is poor, adapt to the demand that development of modern industry is supporting, design that a kind of explosion-proof effect is good, tension is effective, high temperature resistant, shielding properties is high, can meet the fire-proof and explosion-proof cable of fire-proof and explosion-proof instructions for use.
To achieve these goals, design a kind of fire-proof and explosion-proof cable, comprise conductor and fixture, described conductor adopts that some copper wires are stranded to be formed, fire-proof and water-proof insulating barrier is wrapped up outside conductor, gap-fill explosion-proof lamp between the wire of parcel fire-proof and water-proof insulating barrier, fire-proof and water-proof insulating layer is wrapped up successively again outside interior, total screen and external sheath layer, described fire-proof and water-proof insulating layer bonds aluminium foil again after adopting ceramic fiber paper back adhesive glass fabric and forms, described fixture comprises insulator, conduit, fixed cover, be connected and fixed by fixed cover between two conduits, conduit side is provided with insulator and insulation crust.
Described ceramic fiber paper is replaced by ceramic fiber blanket or ceramic fiber cloth or ceramic fibre strip, plays the effect of explosion-proof, shielding demagnetization, the insulation of thermal insulation fire-proof and water-proof.
Described fire-proof and water-proof insulating barrier adopts silicone band, and two layers or more is wrapped outside conductor.
Described anti-explosion cable packing material is explosion-proof mud or high flame retardant glass fiber or ceramic fibre rope.
Described total screen adopts thin copper wire braiding, copper strips or the wrapped formation of aluminium foil, plays electromagnetic iris action.
Described external sheath layer selects environmental-friendly halogen-free low-smoke or silica gel material.
Described insulation crust is made up of mineral fibres.
The utility model patent compared with the existing technology, its advantage is: the construction of cable adopts fire-proof and water-proof insulating barrier, filling explosion-proof lamp, fire-proof and water-proof insulating layer, total screen and external sheath layer sandwich construction parcel conductor to form, rational in infrastructure, can reach explosion-proof, fire prevention, waterproof effect, explosion-proof performance safety and stability; Fire-proof and water-proof insulating layer wherein after ceramic fiber paper back adhesive glass fabric, bonds aluminium foil again form, and refractory temperature is high, and thermal insulation is effective, and quality of materials is light, quality is soft, alleviates the weight of whole cable, make the easy mounting and installation of cable and bend, convenient transportation; The material that each layer adopts is all ep-type material, and clean environment firendly is nontoxic, meet national environmental protection policy.
[accompanying drawing explanation]
Fig. 1 is the schematic cross-section of cable in the utility model;
Fig. 2 is the structural representation of fire-proof and water-proof insulating layer in the utility model;
Fig. 3 is the structural representation of fixed cover in the utility model;
In figure: 1. conductor 2. fire-proof and water-proof insulating barrier 3. explosion-proof lamp packed layer 4. fire-proof and water-proof insulating layer 5. total screen 6. external sheath layer 7. ceramic fiber paper 8. glass fabric 9. aluminium foil 10. glue-line 11. insulator 12. conduit 13. fixed cover 14. insulation crust;
Specify Fig. 1 as Figure of abstract of the present utility model.
[embodiment]
Below in conjunction with accompanying drawing, the utility model is described in further detail, and the structure of this cable and principle are very clearly concerning the people of this specialty.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, conductor of the present utility model adopts some category-As or category-B conductive copper skein silk to close and forms, after stranded for tiny for a lot of root copper wire, at the outer anti-explosion fire waterproof insulation material around two layers or more of conductor, be preferably silicone band, as anti-explosion fire waterproof insulating layer, play explosion-proof waterproof fireproofing three kinds effect, cable insulation is had more safe and reliable guarantee, the explosion-proof packed layer of anti-explosion fire waterproof insulating layer external application, the shielding of explosion-proof packed layer external application copper strips wrapped or proof copper-wire braided, screen outer coated sheath.This cable also comprises fixture, and fixture comprises insulator, conduit, fixed cover, is connected and fixed between two conduits by fixed cover, and conduit side is provided with insulator and insulation crust.This cable can be applicable to colliery, nuclear power, petrochemical industry, military storehouse, mixed gases Environment space, as effects such as electric energy transmittings.By fire-proof and explosion-proof cable one end connecting switch cabinet of this patent, the other end is connected to electric appliance control box and instrument and meter, automatic measuring and controlling equipment, can carry out electric energy transmitting.
Fire-proof and water-proof insulating layer in the utility model after ceramic fiber paper back adhesive glass fabric, bonds aluminium foil again form, as shown in Figure 2, ceramic fiber paper can be replaced by ceramic fiber blanket or ceramic fiber cloth or ceramic fibre strip, after this road processes, the toughness of ceramic fiber paper is strengthened greatly, add the refractory temperature of cable, thermal insulation effect, and because the quality of materials adopted is light, quality is soft, alleviate the weight of whole cable, make the easy mounting and installation of cable and bend, convenient transportation; It is banded that ceramic fiber paper also can be cut into a rule, and ceramic fiber paper is used in the wrapped use of cable outer layer, and the examining report of insulating layer is as shown in table 1 below:
Table 1
This cable preferably can be made into anti-explosion cable, explosion-proof Monitor and Control cable, explosion-proof power cable three kinds of embodiments.
Embodiment 1
When the anti-explosion cable adopting art solutions of the present invention to manufacture, preferred employing more than five layers anti-explosion fire waterproof insulation materials, are from inside to outside followed successively by: 1. conductor 2. anti-explosion fire waterproof insulating layer 3, explosion-proof packed layer 3, fire-proof and water-proof insulating layer 4, total screen 5, external sheath layer.
Embodiment 2
When adopting art solutions of the present invention to make explosion-proof Monitor and Control cable, cable core number is from 2 to 61 cores, and cross section is from 0.5 to 4.0mm 2, voltage 450/750V, preferably employing seven layers, body are from inside to outside followed successively by: 1. conductor 2. anti-explosion fire waterproof insulating layer 3, explosion-proof packed layer 3, fire-proof and water-proof insulating layer 4, total screen 5, separator 6, armour 7, external sheath layer.
Embodiment 3
When adopting art solutions of the present invention to make explosion-proof power cable, cable core number 1 to 5 core, cross section is from 2.5 to 630mm 2, below voltage 8.7/15kV, preferably employing seven layers, body are from inside to outside followed successively by: 1. conductor 2. anti-explosion fire waterproof insulating layer 3, explosion-proof packed layer 3, fire-proof and water-proof insulating layer 4, total screen 5, separator 6, armour 7, external sheath layer.

Claims (7)

1. a fire-proof and explosion-proof cable, comprise conductor and fixture, it is characterized in that described conductor adopts that some copper wires are stranded to be formed, fire-proof and water-proof insulating barrier is wrapped up outside conductor, gap-fill explosion-proof lamp between the wire of parcel fire-proof and water-proof insulating barrier, fire-proof and water-proof insulating layer is wrapped up successively again outside interior, total screen and external sheath layer, described fire-proof and water-proof insulating layer bonds aluminium foil again after adopting ceramic fiber paper back adhesive glass fabric and forms, described fixture comprises insulator, conduit, fixed cover, be connected and fixed by fixed cover between two conduits, conduit side is provided with insulator and insulation crust.
2. a kind of fire-proof and explosion-proof cable as claimed in claim 1, is characterized in that described ceramic fiber paper is replaced by ceramic fiber blanket or ceramic fiber cloth or ceramic fibre strip.
3. a kind of fire-proof and explosion-proof cable as claimed in claim 1, two layers or more is wrapped outside conductor to it is characterized in that adopting silicone band by described fire-proof and water-proof insulating barrier.
4. a kind of fire-proof and explosion-proof cable as claimed in claim 1, is characterized in that described explosion-proof lamp is explosion-proof mud, high flame retardant glass fiber or ceramic fibre rope.
5. a kind of fire-proof and explosion-proof cable as claimed in claim 1, is characterized in that described total screen adopts thin copper wire braiding, copper strips or the wrapped formation of aluminium foil.
6. a kind of fire-proof and explosion-proof cable as claimed in claim 1, is characterized in that described external sheath layer selects environmental-friendly halogen-free low-smoke material or silica gel material.
7. a kind of fire-proof and explosion-proof cable as claimed in claim 1, is characterized in that described insulation crust is made up of mineral fibres.
CN201520142675.XU 2015-03-13 2015-03-13 A kind of fire-proof and explosion-proof cable Active CN204632372U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520142675.XU CN204632372U (en) 2015-03-13 2015-03-13 A kind of fire-proof and explosion-proof cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520142675.XU CN204632372U (en) 2015-03-13 2015-03-13 A kind of fire-proof and explosion-proof cable

Publications (1)

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CN204632372U true CN204632372U (en) 2015-09-09

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108417300A (en) * 2018-03-13 2018-08-17 安徽航天电缆集团有限公司 A kind of high intensity polymer insulation LSOH anti-flaming explosion-proof type cable and manufacturing process
CN112002479A (en) * 2020-08-21 2020-11-27 安徽新特华宇电缆有限公司 High-low temperature resistant explosion-proof power cable for ships

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108417300A (en) * 2018-03-13 2018-08-17 安徽航天电缆集团有限公司 A kind of high intensity polymer insulation LSOH anti-flaming explosion-proof type cable and manufacturing process
CN112002479A (en) * 2020-08-21 2020-11-27 安徽新特华宇电缆有限公司 High-low temperature resistant explosion-proof power cable for ships
CN112002479B (en) * 2020-08-21 2021-09-28 安徽新特华宇电缆有限公司 High-low temperature resistant explosion-proof power cable for ships

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