CN204651066U - A kind of lv power cable - Google Patents

A kind of lv power cable Download PDF

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Publication number
CN204651066U
CN204651066U CN201520186238.8U CN201520186238U CN204651066U CN 204651066 U CN204651066 U CN 204651066U CN 201520186238 U CN201520186238 U CN 201520186238U CN 204651066 U CN204651066 U CN 204651066U
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China
Prior art keywords
cable
layer
power cable
coating
insulating barrier
Prior art date
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Active
Application number
CN201520186238.8U
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Chinese (zh)
Inventor
姜庆水
张万有
熊宇
刘清波
周晓斌
韩俊宝
李笑镭
崔育忠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Nuclear Power Engineering Co Ltd
Anhui Cable Co Ltd
Original Assignee
China Nuclear Power Engineering Co Ltd
Anhui Cable Co Ltd
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Application filed by China Nuclear Power Engineering Co Ltd, Anhui Cable Co Ltd filed Critical China Nuclear Power Engineering Co Ltd
Priority to CN201520186238.8U priority Critical patent/CN204651066U/en
Application granted granted Critical
Publication of CN204651066U publication Critical patent/CN204651066U/en
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Abstract

The utility model relates to a kind of lv power cable, comprise conductor, the outer of described conductor is arranged with coating for protection against corrosion, the outer of described coating for protection against corrosion is arranged with MULTILAYER COMPOSITE insulating barrier, described the outer of MULTILAYER COMPOSITE insulating barrier is arranged with packed layer, the outer of described packed layer is arranged with lapping layer, and the outer of described lapping layer is arranged with restrictive coating.This lv power cable can tolerate harsh and unforgiving environments; Oil resistant, acid and alkali-resistance in wet environment; Structurally flexible, mounting and installation is convenient; Stable performance under high temperature or low temperature environment, heat-proof aging and high dosage irradiation ageing properties excellent; Long service life.

Description

A kind of lv power cable
Technical field
The utility model relates to a kind of three generations's nuclear power station ACP1000 harsh and unforgiving environments lv power cable, and this cable operates in the low-voltage direct or ac power supply circuit that in nuclear island of nuclear power station containment, safety is relevant.
Background technology
Three generations's nuclear power station ACP1000 harsh and unforgiving environments lv power cable comprises single-core cable and multicore cable.Three generations's nuclear power station ACP1000 harsh and unforgiving environments lv power cable: be mainly applicable to rated voltage 0.6/1kV and the following power transmission line that fixedly lays or movable electrical appliances service cable, be the new product adopting the development of the low cigarette of high-tech polymer, Halogen, fire proofing, various aspects of performance is reached advanced world standards.Product has the harsh and unforgiving environments that tolerance is caused by design basis event (DBA) [comprise reactor coolant lose (LOCA), main steam line break (MSLB) and other high energy pipeline breaking (HELB)] and super design reference event, the characteristics such as oil resistant, acid and alkali-resistance, waterproof, the construction of cable is soft, mounting and installation is convenient, under high temperature or low temperature environment, electric property is stablized, heat resistanceheat resistant and high dosage irradiation ageing properties are given prominence to, and are greater than 60 years useful life.
Low-voltage electric power cable used for nuclear in the past, mainly apply to outside nuclear power plant containment shell, also have shell inner cable in research and development, but main problem is present in: other type lv power cable cannot meet the requirement in three generations's nuclear power station ACP1000 harsh and unforgiving environments and 60 years lower useful life of conductor maximum temperature 90 DEG C condition.Along with the requirements at the higher level that China proposes three generations's nuclear power station, be badly in need of a kind of New Low Voltage power cable meeting three generations's nuclear power station ACP1000 harsh and unforgiving environments and technical requirement of exploitation.
Utility model content
For the defect existed in prior art, the utility model provides a kind of lv power cable, and this lv power cable can tolerate harsh and unforgiving environments; Oil resistant, acid and alkali-resistance, waterproof in wet environment; Structurally flexible, mounting and installation is convenient; Stable performance under high temperature or low temperature environment, heat-proof aging and high dosage irradiation ageing properties excellent; Long service life.
For reaching above object, the technical solution adopted in the utility model is: provide a kind of lv power cable, comprise conductor, the outer of described conductor is arranged with coating for protection against corrosion, the outer of described coating for protection against corrosion is arranged with MULTILAYER COMPOSITE insulating barrier, described the outer of MULTILAYER COMPOSITE insulating barrier is arranged with packed layer, and the outer of described packed layer is arranged with lapping layer, and the outer of described lapping layer is arranged with restrictive coating.
Further, described MULTILAYER COMPOSITE insulating barrier is low cigarette, Halogen, the fire-retardant layer of resistance to irradiation crosslinked polyolefin insulating.
Further, described restrictive coating is low cigarette, Halogen, fire-retardant resistance to cross-linking radiation polyolefin sheath layer.
Further, described lapping layer is the overlapping lapping layer of PET polyester film.
Further, described cable comprises multiple cable core; Each cable core comprises many coating copper wires, and multiple conducting wires is concentric regular stranded.
Advantageous Effects of the present utility model is:
(1) cable of the present utility model, conductor useful life under 90 DEG C of hot conditionss is 60 years;
(2) Cable Construction Design advantages of simple; Cable conductor comprises multiple conducting wires, multiple conducting wires concentric stranding, makes cable soft and has good anti-corrosive properties;
(3) extrude Multi-layer composite cross-linking radiation polyolefine material outside conductor, while guarantee electrical property, ensure that the flame-retarding characteristic of cable core;
(4) cable adopts Halogen, high flame retardant, resistance to exposed material is seamless, and high pressure extrudes filling, PET polyester film is wrapped up in packed layer and restrictive coating, restrictive coating adopts the polyolefin of resistance to cross-linking radiation high-tech polymeric material, use step temperature to extrude technique, improve the mechanical performance of cable and meet low cigarette, Halogen, fire-retardant requirement;
(5) the utility model cable can tolerate the harsh and unforgiving environments caused by design basis event and super design reference event, and possesses the characteristic of oil resistant, acid and alkali-resistance, waterproof;
(6) construction of cable is soft, and mounting and installation is convenient, and under high temperature or low temperature environment, electric property is stablized, heat-proof aging and high dosage irradiation ageing properties excellent.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model lv power cable.
In figure:
1-conductor 2-coating 3-insulating barrier
4-packed layer 5-lapping layer 6-restrictive coating
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
As shown in Figure 1, it is the utility model three generations nuclear power station ACP1000 harsh and unforgiving environments lv power cable, comprise conductor 1, conductive surface is evenly coated with coating for protection against corrosion 2, coating 2 periphery is extruded with MULTILAYER COMPOSITE insulating barrier 3, the outer of MULTILAYER COMPOSITE insulating barrier 3 is arranged with packed layer 4, and the outer of packed layer 4 is arranged with lapping layer 5, and the outer of lapping layer 5 is arranged with restrictive coating 6.
Wherein, MULTILAYER COMPOSITE insulating barrier 3 is low cigarette, Halogen, the fire-retardant layer of resistance to irradiation crosslinked polyolefin insulating, and employing high temperature, high pressure continuous multilayer mode extrude and form.
Packed layer 4 adopts black halogen-free, high flame retardant, resistance to exposed material, and seamless high pressure is extruded and filled rounding, tight, gapless.
Lapping layer 5 is the overlapping lapping layer of PET polyester film.
Restrictive coating 6 is low cigarette, Halogen, fire-retardant resistance to cross-linking radiation polyolefin sheath layer, and the cross section of this restrictive coating is circular configuration.
Cable comprises multiple cable core, and each cable core comprises many coating copper wires, and multiple conducting wires is concentric regular stranded.Gap between multiple conducting wires adopts Halogen, high flame retardant, resistance to exposed material is seamless, and high pressure extrudes filling.
In sum, cable, within 60 year phase in longevity, when ensureing low smoke and zero halogen characteristic, combustion characteristics, mechanical property, electrical characteristics, can meet the environmental condition of high temperature, high pressure and high irradiation dose under three generations's nuclear power station ACP1000 harsh environmental conditions.The construction of cable is soft, and bending radius is not less than 8 times of the outside diameter of cable.During mounting and installation, cable can bear certain mechanical tensile forces load.
Lv power cable of the present utility model is not limited to above-mentioned embodiment, and those skilled in the art draw other execution mode according to the technical solution of the utility model, belongs to technological innovation scope of the present utility model equally.

Claims (5)

1. a lv power cable, comprise conductor (1), it is characterized in that: the outer of described conductor (1) is arranged with coating for protection against corrosion (2), the outer of described coating for protection against corrosion (2) is arranged with MULTILAYER COMPOSITE insulating barrier (3), the outer of described MULTILAYER COMPOSITE insulating barrier (3) is arranged with packed layer (4), the outer of described packed layer (4) is arranged with lapping layer (5), and the outer of described lapping layer (5) is arranged with restrictive coating (6).
2. a kind of lv power cable as claimed in claim 1, is characterized in that: described MULTILAYER COMPOSITE insulating barrier (3) is low cigarette, Halogen, the fire-retardant layer of resistance to irradiation crosslinked polyolefin insulating.
3. a kind of lv power cable as claimed in claim 1, is characterized in that: described restrictive coating (6) is low cigarette, Halogen, fire-retardant resistance to cross-linking radiation polyolefin sheath layer.
4. a kind of lv power cable as claimed in claim 1, is characterized in that: described lapping layer (5) is the overlapping lapping layer of PET polyester film.
5. a kind of lv power cable as described in any one of claim 1-4, is characterized in that: described cable comprises multiple cable core; Each cable core comprises many coating copper wires, and multiple conducting wires is concentric regular stranded.
CN201520186238.8U 2015-03-30 2015-03-30 A kind of lv power cable Active CN204651066U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520186238.8U CN204651066U (en) 2015-03-30 2015-03-30 A kind of lv power cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520186238.8U CN204651066U (en) 2015-03-30 2015-03-30 A kind of lv power cable

Publications (1)

Publication Number Publication Date
CN204651066U true CN204651066U (en) 2015-09-16

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CN201520186238.8U Active CN204651066U (en) 2015-03-30 2015-03-30 A kind of lv power cable

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106920591A (en) * 2017-05-11 2017-07-04 南京全信传输科技股份有限公司 Nuclear power equipment is crosslinked rubber insulation radiation resistant cable with low-smoke non-halogen flame-retardant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106920591A (en) * 2017-05-11 2017-07-04 南京全信传输科技股份有限公司 Nuclear power equipment is crosslinked rubber insulation radiation resistant cable with low-smoke non-halogen flame-retardant

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