CN203225128U - Interlocked armored steel-sheath cable with rated voltage below 1 kV - Google Patents
Interlocked armored steel-sheath cable with rated voltage below 1 kV Download PDFInfo
- Publication number
- CN203225128U CN203225128U CN 201320241581 CN201320241581U CN203225128U CN 203225128 U CN203225128 U CN 203225128U CN 201320241581 CN201320241581 CN 201320241581 CN 201320241581 U CN201320241581 U CN 201320241581U CN 203225128 U CN203225128 U CN 203225128U
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- cable
- steel
- protective layer
- heat dissipating
- sheath
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Abstract
The utility model relates to an interlocked armored steel-sheath cable with rated voltage below 1 kV. The cable includes a plurality of insulation cores, an inner protective layer and an armor layer, wherein the above three parts are arranged inside-to-outside; the armor layer is an interlocked mutually-buckled armor sleeve with screw threads in the external surface and smooth screw threads in the inner surface; heat dissipating spaces are disposed between the plurality of insulation cores and the inner protective layer; and heat dissipating spaces are disposed between the inner protective layer and the armor layer. Filler in the inner of cables is removed, and heat dissipating spaces in the inner of products are increased; inner heat dissipating spaces allow heat in the cable to be dissipated efficiently, current-carrying capacity of the cable is raised, aging speed of cable insulation is reduced, and service life of the cable is extended; and the interlocked armored steel sheath is made of galvanized steel, stainless steel, or zinc-aluminum-plating rare-earth-alloy-plating steel or other corrosion resistant steel materials, service life of products is extended, and long term protection of cable is achieved.
Description
[technical field]
The utility model relates to a kind of armoured power cable, particularly relates to the following lock armo steel sheath of a kind of 1kV cable.
[background technology]
The existing plastic jacketed cable oversheath of the following multicore of 1kV that is used for is for having polyvinyl chloride and polyethylene material product, this series products often is used for house wiring, lay comparatively trouble, if it is improper to lay, the easy and cable testing bridge scratching of outer plastic sheath causes the cable sheath damage, cause cable core impaired easily, if during breaking out of fire, can discharge toxic gas during the plastic sheath burning, and can cause line interruption.Because cable is the stranded product of multicore, simple stranded back finished product profile is the polygon product, in order to make the finished cable profile for circular, all need packing to guarantee that product design is for circular during stranded stranding, and cause the heat dissipation in the cable comparatively slow behind the use filler, and cause the cable internal heat big, ampacity descends, and accelerated the aging speed of cable insulation, reduced the useful life of cable.And for outdoor low pressure armoured cable, on the basis of original plastic jacketed cable, in order to make cable more shock-resistant, before product extrudes one deck oversheath, by using the wrapped mode armoured cable of steel band, therefore exist the heat of cable to dissipate comparatively slow with the existing plastic jacketed cable that is used for the multicore of low pressure, the cable internal heat is big, ampacity descends, and has accelerated the aging speed of cable insulation, the useful life of reducing cable.
[summary of the invention]
The utility model is intended to address the above problem and the following lock armo steel sheath of a kind of simple in structure, safe and reliable 1kV cable is provided.
For achieving the above object; the utility model provides the following lock armo steel sheath of 1kV cable; the following lock armo steel sheath of this 1kV cable from inside to outside comprises a plurality of insulated wire cores, inner protective layer and armour successively; be provided with internal voids between described a plurality of insulated wire cores and the inner protective layer; this internal voids is heat-dissipating space; described armour is handed over button armouring cover for interlocking, and its outer surface is shape of threads, and inner surface is slick and sly shape of threads.
Described armour material is a kind of of galvanized steel, stainless steel or zinc-plated Al rare earth alloy coated steel.
Described armour outer surface is provided with external protection, and this external protection is polyvinyl chloride or polyethylene protective sleeve.
The following lock armo steel sheath of 1kV of the present utility model cable compared with prior art, its beneficial effect is: the filler of cancellation cable inside increases product internal heat dissipating space.The internal heat dissipating space is dissipated the heat in the cable rapidly, improves the ampacity of power cable, and has reduced the aging speed of cable insulation, prolongs the useful life of cable.Lock armo adopts steel sheath to become circular-arc by the machine die mould, hands over button armouring to form mutually it again, and armour is not yielding, increases product useful life, reaches the effect of long-term protection cable.
[description of drawings]
Fig. 1 is cross-sectional structure schematic diagram of the present utility model.
Fig. 2 is the cross-sectional structure schematic diagram that the utility model increases external protection.
[embodiment]
The following example is to further explanation of the present utility model and explanation, and the utility model is not constituted any limitation.
As shown in Figure 1, the utility model from inside to outside comprises insulated wire cores 10, inner protective layer 22, armour 23 successively.Described insulated wire cores 10 can or be at least more than two for one, and in the present embodiment, this utility model adopts five to thoroughly do away with edge core 10.Described insulated wire cores 10 comprises conductor thread core 11 and conductor thread core 11 outer surface covered dielectric layer 12.Described inner protective layer 22 is polyvinyl chloride or polyethylene protective sleeve, has increased the useful life of cable.
As shown in Figure 1; be provided with heat-dissipating space 21 between described a plurality of insulated wire cores 10 and the inner protective layer 22; these heat-dissipating space 21 cancellation inside stuffings; increase the space of cable conductor; with as heat-dissipating space; the heating of cable core is in time left, improved the ampacity of cable, and reduced the weight of cable.
As shown in Figure 1, described armour 23 is handed over button armouring cover for interlocking, and these armour 23 outer surfaces are shape of threads, and its inner surface is slick and sly shape of threads.Described armour can use materials such as galvanized steel, zinc-plated Al rare earth alloy coating steel or stainless steel, and in the present embodiment, this armour 23 adopts the galvanized steel material.These armour 23 its bending radius that make the rounded shape of cable profile and reduced cable, be subjected to be not easy distortion after the external force effect, and being subjected to can not produce after the external force makes armouring edge of a knife shape sheet metal occur with metal, can not cause damage to the cable inner core, increase the useful life of cable, can protect cable for a long time; The steel sheath lock armo can not discharge toxic gas during breaking out of fire, and is safe and reliable.
Cable as shown in Figure 1 is mainly used in house wiring and uses.
As shown in Figure 2; outer surface at armour 23 described in the utility model extrudes one deck external protection 24; this external protection 24 can be selected igelite, polyethylene or low-smoke halogen-free polyolefin plastics for use, and increasing external protection 24 can protect cable for a long time, has prolonged the useful life of cable.The cable that increases external protection 24 is mainly used in outdoor laid and uses.
Although disclose by the utility model of above embodiment; but protection range of the present utility model is not limited thereto; do not departing under the condition of the utility model design, the distortion that above each member is done, replacement etc. all will fall in the claim scope of the present utility model.
Claims (3)
1.1kV following lock armo steel sheath cable; this cable from inside to outside comprises a plurality of insulated wire cores (10), inner protective layer (22) and armour (23) successively; it is characterized in that; be provided with internal voids between described a plurality of insulated wire cores (10) and the inner protective layer (22); this internal voids is heat-dissipating space (21); described armour (23) is handed over button armouring cover for interlocking, and its outer surface is shape of threads, and inner surface is slick and sly shape of threads.
2. the following lock armo steel sheath of 1kV cable according to claim 1 is characterized in that described armour (23) material is a kind of of galvanized steel, stainless steel or zinc-plated Al rare earth alloy coated steel.
3. the following lock armo steel sheath of 1kV cable according to claim 1 is characterized in that described armour (23) outer surface is provided with external protection (24), and this external protection (24) is polyvinyl chloride or polyethylene protective sleeve.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201320241581 CN203225128U (en) | 2013-05-07 | 2013-05-07 | Interlocked armored steel-sheath cable with rated voltage below 1 kV |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201320241581 CN203225128U (en) | 2013-05-07 | 2013-05-07 | Interlocked armored steel-sheath cable with rated voltage below 1 kV |
Publications (1)
Publication Number | Publication Date |
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CN203225128U true CN203225128U (en) | 2013-10-02 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN 201320241581 Expired - Lifetime CN203225128U (en) | 2013-05-07 | 2013-05-07 | Interlocked armored steel-sheath cable with rated voltage below 1 kV |
Country Status (1)
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CN (1) | CN203225128U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104409143A (en) * | 2014-12-22 | 2015-03-11 | 深圳深缆科技有限公司 | (Heat insulating type) mineral insulating and fireproof cable |
-
2013
- 2013-05-07 CN CN 201320241581 patent/CN203225128U/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104409143A (en) * | 2014-12-22 | 2015-03-11 | 深圳深缆科技有限公司 | (Heat insulating type) mineral insulating and fireproof cable |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CX01 | Expiry of patent term |
Granted publication date: 20131002 |
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CX01 | Expiry of patent term |