CN103985461A - Smokeless flame-retardant high-temperature-resistant power cable - Google Patents
Smokeless flame-retardant high-temperature-resistant power cable Download PDFInfo
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- CN103985461A CN103985461A CN201410183836.XA CN201410183836A CN103985461A CN 103985461 A CN103985461 A CN 103985461A CN 201410183836 A CN201410183836 A CN 201410183836A CN 103985461 A CN103985461 A CN 103985461A
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Abstract
The invention provides a smokeless flame-retardant high-temperature-resistant power cable. Each insulation wire core is formed by a conductor, an inner insulation layer and an outer insulation layer, wherein the conductor is wrapped by the inner insulation layer and the outer insulation layer sequentially. The smokeless flame-retardant high-temperature-resistant power cable is characterized in that a glass fiber layer is arranged outside each outer insulation layer, an insulation wire core is formed by one conductor, one inner insulation layer, one outer insulation layer and one glass fiber layer, a plurality of insulation wire cores are twisted to form one cable core, gaps of the cable core are filled with filling strips, and the cable core and the filling strips are wrapped by isolation layers. The outermost layer of the cable is an outer sheath, and the inner insulation layers are made of insulation materials of polyethylene or cross-linked polyethylene or irradiation cross-linked polyolefin. The inner insulation layers are formed by fire-resistant mica tape and a nano fireproof insulation layer.
Description
Technical field
The present invention relates to a kind of cable, specifically a kind of smokeless flame-resistant high-temperature-resistant power cable.
Background technology
Develop rapidly along with China's industry, plastic insulated cable constantly increases in the industrial scope of application and consumption, common plastics insulated cable anti-flammability is poor, add after fire retardant, electrical insulating property reduces, during burning, produce a large amount of poisonous and harmful smog, environment, equipment and personnel's life is had to very big harm.And nanometer fireproof material can 2.5 times of excess load under rated voltage and is as usual played insulating effect; Long-term work temperature range is :-40 ℃ to 1200 ℃, and insulation as usual; Under 800-1200 ℃ of naked light ablation, not short circuit in 1.5 hours, does not cause electricity fire; There is low cigarette, nontoxic, Halogen, fire-retardant characteristic; Cost is low, good performance indexes; Be suitable for the insulating barrier of various electric wires.In view of the foregoing, for adapting to the demand of future market, I am the positive tissue departmental staff of Development Office of company, study, finally determined a kind of nanometer super high fire retardant power cables, the appearance of this type of cable, the occasion that requires extra-high-speed for those are fire-retardant, provides guarantee.
Traditional non-halogen flame-retardant cable mainly adds magnesium hydroxide and aluminium hydroxide and carries out fire-retardant in polyolefine material, but its flame retarding efficiency is lower, need to add 50～60% and just can reach certain flame retardant effect, this just makes composite materials property have deterioration significantly, and processing flowability also further reduces.China Patent Publication No.; In CN 102140192A low-smoke halogen-free polyolefine composite and preparation method thereof, in order to reduce the content of inorganic combustion inhibitor, guarantee again the fire resistance that composite material is high simultaneously, adopt magnesium hydroxide as main flame retardant, add organosilicon as fire retarding synergist, although the composite material hot strength of preparation is very high, elongation at break is very short, only have tens, and clearly propose elongation at break in cable material of polyolefin standard, be greater than 150%.
Power cable is from polyvinyl chloride insulation or the non-flame retardant type cable of polyethylene insulation, polyvinyl chloride or pe sheath, develop into the flame retardant type polyvinyl chloride insulation that starts the nineties in last century or flame retardant type polyethylene insulation, crosslinked polyetylene insulated or silicon rubber and fluoroplastic insulation (high-temperature field is share), flame retardant type pvc sheath or flame retardant type pe sheath, flame retardant type (being mainly divided into category-A, category-B, C class) silicon rubber and fluoroplastic cable, develop into again the low-smoke halogen-free flame retardant power cable starting the beginning of this century, to the fire resistance of cable, require more and more higher as seen.
The insulation of low-smoke halogen-free inflaming-retarding cable adopts low-smoke halogen-free polyolefin insulation substantially, and sheath adopts low-smoke and halogen-free flame retardant polyolefin jacket, and the cable of this class material manufacture all can not reach the performance requirement that smokeless halogen-free does not fire.
Summary of the invention
The object of this invention is to provide a kind of smokeless flame-resistant high-temperature-resistant power cable.
Technical scheme of the present invention is:
A kind of smokeless flame-resistant high-temperature-resistant power cable, insulated wire cores consists of conductor and the wrapped inner insulating layer setting gradually outward at described conductor and external insulation layer, it is characterized in that: at described external insulation layer, be outside equipped with glass layer, described conductor, inner insulating layer, external insulation layer and described glass layer form an insulated wire cores, the stranded formation cable core of several insulated wire cores, in described cable core gap, be provided with packing, described cable core and packing are surrounded with separator outward, the outermost layer of cable is oversheath, described inner insulating layer adopts polyethylene or crosslinked polyethylene or irradiation crosslinked polyolefin insulating material, inner insulating layer consists of fire-resistant isinglass belt and nanometer fireproof insulating barrier, described oversheath materials comprise following material: the parts by weight that material forms are EVA 100-120 part, PE 18-24 part, ethylene propylene diene rubber 10-15 part, POE 52-58 part, PPO 7-10 part, silicone 0.6-0.9 part, TAIC 3-4 part, magnesium hydroxide 200-250 part, Firebrake ZB 8-12 part, PE-g-MAH28-32 part.
Described insulated wire cores is by copper conductor or silver-plated copper conductor or crosslinked polyethylene carried out by the outside bag of nickel-clad copper conductor or silicon rubber forms.
The quantity of described insulated wire cores is 2～6.
Described interior flame-retardant layer and described outer flame-retardant layer are glass fiber tape.
The material of described gasket for packing is inorganic paper string or glass-silk rope.
Described core by copper conductor, copper conductor outward successively wrapped double-deck fire-resistant isinglass belt and nanometer fireproof insulating barrier form, described core is filled with fire-retardant gasket for packing outward, and wrapped with glass fiber tape, nanometer fireproof oversheath is extruded in outside glass fiber tape.
The invention has the beneficial effects as follows, adopt high purity oxygen free copper silk, effectively reduced current loss; Conductor is the double-deck fire-resistant isinglass belt of vertical bag outward, and mica tape has good machinery and heat resistance, in 550-800 ℃, can use for a long time; Insulating barrier adopts nanometer fireproof high flame retardant material; During stranding, adopt high flame retardant fill and glass fiber tape wrapped, the features such as that glass fiber tape has is high temperature resistant, insulation, insulation, fire protection flame retarding, corrosion-resistant, ageing-resistant, weatherability, high strength, smooth in appearance; Outer jacket adopts nanometer fireproof high flame retardant material.The present invention has low cigarette, nontoxic, Halogen, fire-retardant, explosion-proof characteristic, and the feature of Nai Neire, anti-naked light, resistance to extreme climate environment, environmental protection, is a kind of desirable high flame retardant fireproof cable.
The present invention has improved the conduction of cable and fire-retardant ability.This type of cable overcomes the deficiency that traditional cable exists, and has excellent fire resistance, and high with having transfer rate again, line loss is little; Usage safety performance is high, non-environmental-pollution; Feature is installed, maintenance cost is low etc., is more and more applied in each field,, there are fine market prospects in the place as the security reliability of the electric equipments such as subway, nuclear power station, market, hospital, intelligent building is had relatively high expectations.
Embodiment
Embodiment 1
A kind of smokeless flame-resistant high-temperature-resistant power cable, insulated wire cores consists of conductor and the wrapped inner insulating layer setting gradually outward at described conductor and external insulation layer, it is characterized in that: at described external insulation layer, be outside equipped with glass layer, described conductor, inner insulating layer, external insulation layer and described glass layer form an insulated wire cores, the stranded formation cable core of several insulated wire cores, in described cable core gap, be provided with packing, described cable core and packing are surrounded with separator outward, the outermost layer of cable is oversheath, described inner insulating layer adopts polyethylene or crosslinked polyethylene or irradiation crosslinked polyolefin insulating material, inner insulating layer consists of fire-resistant isinglass belt and nanometer fireproof insulating barrier, described oversheath materials comprise following material: the parts by weight that material forms are EVA 100-120 part, PE 18-24 part, ethylene propylene diene rubber 10-15 part, POE 52-58 part, PPO 7-10 part, silicone 0.6-0.9 part, TAIC 3-4 part, magnesium hydroxide 200-250 part, Firebrake ZB 8-12 part, PE-g-MAH28-32 part.
Described insulated wire cores is by copper conductor or silver-plated copper conductor or crosslinked polyethylene carried out by the outside bag of nickel-clad copper conductor or silicon rubber forms.
The quantity of described insulated wire cores is 2～6.
Described interior flame-retardant layer and described outer flame-retardant layer are glass fiber tape.
The material of described gasket for packing (3) is inorganic paper string or glass-silk rope.
Described core by copper conductor, copper conductor outward successively wrapped double-deck fire-resistant isinglass belt and nanometer fireproof insulating barrier form, described core is filled with fire-retardant gasket for packing outward, and wrapped with glass fiber tape, nanometer fireproof oversheath is extruded in outside glass fiber tape.
The corrosion resistant CABLE MATERIALS of modified, high temperature resistant, the weight portion of its constitutive material is:
EVA 100-120 part,
PE 18-24 part,
Ethylene propylene diene rubber 10-15 part,
POE 52-58 part,
PPO 7-10 part,
Silicone 0.6-0.9 part,
TAIC 3-4 part,
Magnesium hydroxide 200-250 part,
Firebrake ZB 8-12 part,
PE-g-MAH28-32 part.
Processing method: on common processing method basis, adopt the technological process of secondary extrusion molding.
The course of processing adopts secondary extrusion molding: when object is production thin-walled cable, can accelerate to a certain extent extruded velocity again.
Production process: raw material (base-material and various processing aid)---twin-screw extrusion (first pass is extruded)---single twin-screw extrusion (secondary is extruded).
Temperature conditions during controlled working, each district's Temperature Setting of screw rod: twin-screw 110-150 ℃, single screw rod 110-140 ℃, machine, 105-120 ℃.
Claims (7)
1. a smokeless flame-resistant high-temperature-resistant power cable, insulated wire cores consists of conductor and the wrapped inner insulating layer setting gradually outward at described conductor and external insulation layer, it is characterized in that: at described external insulation layer, be outside equipped with glass layer, described conductor, inner insulating layer, external insulation layer and described glass layer form an insulated wire cores, the stranded formation cable core of several insulated wire cores, in described cable core gap, be provided with packing, described cable core and packing are surrounded with separator outward, the outermost layer of cable is oversheath, described inner insulating layer adopts polyethylene or crosslinked polyethylene or irradiation crosslinked polyolefin insulating material, inner insulating layer consists of fire-resistant isinglass belt and nanometer fireproof insulating barrier, described oversheath materials comprise following material: the parts by weight that material forms are EVA 100-120 part, PE 18-24 part, ethylene propylene diene rubber 10-15 part, POE 52-58 part, PPO 7-10 part, silicone 0.6-0.9 part, TAIC 3-4 part, magnesium hydroxide 200-250 part, Firebrake ZB 8-12 part, PE-g-MAH28-32 part.
2. smokeless flame-resistant high-temperature-resistant power cable according to claim 1, is characterized in that: described insulated wire cores is by copper conductor or silver-plated copper conductor or crosslinked polyethylene carried out by the outside bag of nickel-clad copper conductor or silicon rubber forms.
3. smokeless flame-resistant high-temperature-resistant power cable according to claim 1, is characterized in that: the quantity of described insulated wire cores is 2～6.
4. smokeless flame-resistant high-temperature-resistant power cable according to claim 1, is characterized in that: described interior flame-retardant layer and described outer flame-retardant layer are glass fiber tape.
5. smokeless flame-resistant high-temperature-resistant power cable according to claim 1, is characterized in that: the material of described gasket for packing is inorganic paper string or glass-silk rope.
6. smokeless flame-resistant high-temperature-resistant power cable according to claim 1, it is characterized in that: described core by copper conductor, copper conductor outward successively wrapped double-deck fire-resistant isinglass belt and nanometer fireproof insulating barrier form, described core is filled with fire-retardant gasket for packing outward, and wrapped with glass fiber tape, nanometer fireproof oversheath is extruded in outside glass fiber tape.
7. a method of preparing smokeless flame-resistant high-temperature-resistant power cable claimed in claim 1, it is characterized in that: on common processing method basis, adopt the technological process of secondary extrusion molding, its process is raw material, base-material and the single twin-screw extrusion of various processing aid---twin-screw extrusion---, temperature conditions during controlled working, each district's Temperature Setting of screw rod: twin-screw 110-150 ℃, single screw rod 110-140 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410183836.XA CN103985461A (en) | 2014-05-04 | 2014-05-04 | Smokeless flame-retardant high-temperature-resistant power cable |
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| CN201410183836.XA CN103985461A (en) | 2014-05-04 | 2014-05-04 | Smokeless flame-retardant high-temperature-resistant power cable |
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| CN103985461A true CN103985461A (en) | 2014-08-13 |
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| CN201410183836.XA Pending CN103985461A (en) | 2014-05-04 | 2014-05-04 | Smokeless flame-retardant high-temperature-resistant power cable |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810314A (en) * | 2014-12-29 | 2016-07-27 | 上海新益电力线路器材有限公司 | Irradiation crosslinking high temperature resistance low-smoke halogen-free flame retardant insulation wire |
| CN106279940A (en) * | 2016-08-08 | 2017-01-04 | 扬州曙光电缆股份有限公司 | High fire-retardance cross-linked polyolefin sheath generation Ⅲ nuclear power station nuclear island cable and manufacture method |
| CN107722439A (en) * | 2017-09-29 | 2018-02-23 | 南京创贝高速传动机械有限公司 | A kind of environment-friendly cable insulating barrier and its preparation technology |
| CN117577384A (en) * | 2023-12-05 | 2024-02-20 | 华盛电力科技有限公司 | Fireproof cable |
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| JPH08287737A (en) * | 1995-04-17 | 1996-11-01 | Yazaki Corp | Fire risistant wire |
| CN201237942Y (en) * | 2008-06-26 | 2009-05-13 | 四川明星电缆有限公司 | Impact, high temperature and flame-resistant cable |
| CN201392689Y (en) * | 2009-04-21 | 2010-01-27 | 安徽渡江电缆集团有限公司 | Environment-friendly fire resistant cable |
| CN102394126A (en) * | 2011-10-24 | 2012-03-28 | 中特华星电缆股份有限公司 | Low-smoke halogen-free high-flame-retardant fire-resistant environmentally-friendly cable |
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2014
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Patent Citations (5)
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| JPH08287737A (en) * | 1995-04-17 | 1996-11-01 | Yazaki Corp | Fire risistant wire |
| CN201237942Y (en) * | 2008-06-26 | 2009-05-13 | 四川明星电缆有限公司 | Impact, high temperature and flame-resistant cable |
| CN201392689Y (en) * | 2009-04-21 | 2010-01-27 | 安徽渡江电缆集团有限公司 | Environment-friendly fire resistant cable |
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Non-Patent Citations (1)
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810314A (en) * | 2014-12-29 | 2016-07-27 | 上海新益电力线路器材有限公司 | Irradiation crosslinking high temperature resistance low-smoke halogen-free flame retardant insulation wire |
| CN105810314B (en) * | 2014-12-29 | 2017-08-29 | 上海新益电力线路器材有限公司 | A kind of cross-linking radiation high-temperature resistant low-fume non-bittern insulated electric conductor |
| CN106279940A (en) * | 2016-08-08 | 2017-01-04 | 扬州曙光电缆股份有限公司 | High fire-retardance cross-linked polyolefin sheath generation Ⅲ nuclear power station nuclear island cable and manufacture method |
| CN107722439A (en) * | 2017-09-29 | 2018-02-23 | 南京创贝高速传动机械有限公司 | A kind of environment-friendly cable insulating barrier and its preparation technology |
| CN117577384A (en) * | 2023-12-05 | 2024-02-20 | 华盛电力科技有限公司 | Fireproof cable |
| CN117577384B (en) * | 2023-12-05 | 2024-04-19 | 华盛电力科技有限公司 | Fireproof cable |
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Application publication date: 20140813 |
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