CN104282380A

CN104282380A - Controlling cable

Info

Publication number: CN104282380A
Application number: CN201410577265.8A
Authority: CN
Inventors: 任勇; 姜诚; 李觅
Original assignee: Anhui Telecom Equipment Trading Industry Co Ltd
Current assignee: Anhui Telecom Equipment Trading Industry Co Ltd
Priority date: 2014-10-24
Filing date: 2014-10-24
Publication date: 2015-01-14

Abstract

The invention discloses a controlling cable which comprises a plurality of wires. The wires are twisted to form two sets, the outside of each set of wires is covered with an insulating layer, and the outsides of the insulating layers of the two sets of wires are together covered with a low smoke zero halogen flame retardant belt wrapping layer. An H-shaped nylon skeleton is arranged in the low smoke zero halogen flame retardant belt wrapping layer, and the H-shaped nylon skeleton is wrapped with the two sets of wires. The outside of the low smoke zero halogen flame retardant belt wrapping layer is sequentially coated with a semiconductive shielding layer, a polyester silk knitting tear-resistant layer and a jacket layer. The gap between the polyester silk knitting tear-resistant layer and the PVC jacket layer is filled with a mixture of water stopping paste and water stopping powder. According to the controlling cable, the inner structure layer is simple, various properties such as insulation, water resistance and compression resistance of the entire cable cannot be affected, mounting is convenient, and the practicability can be achieved.

Description

Control cables

Technical field

The present invention relates to cable, mainly a kind of control cables.

Background technology

Control cables is mainly used in transfer control; be applicable to energy traffic department, for occasions such as ac rated voltage less than 450/750 volt control, protection circuits; its cable standard requires strict; the structure sheaf of general control cable is complicated; to guarantee the various performances of whole cable, the shortcomings such as existing cable protective cover material ageing resistance difference.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of control cables, and its inner structure level is simple, but do not affect whole cable insulation, block water, the various performance such as resistance to compression, easy for installation, Practical Performance is good.Cable jacket material ageing resistance of the present invention is good.

For solving the problems of the technologies described above, the technical solution used in the present invention is:

A kind of control cables, include multiple conducting wires, it is characterized in that: the stranded formation of described multiple conducting wires two groups, and the wire often organized is coated with insulating barrier, the insulating barrier of described two groups of wires is coated with low-smoke non-halogen flame-retardant band lapping layer outward jointly, in low-smoke non-halogen flame-retardant band lapping layer, be provided with I shape polyamide skeleton, described I shape polyamide skeleton surrounds two groups of wires; Described low-smoke non-halogen flame-retardant band lapping layer is coated with semiconductive shielding layer, dacron thread braiding tear resistant layer, restrictive coating outward successively, is filled with the mixture of waterproof paste and water-proofing powder between dacron thread braiding tear resistant layer and polyvinyl chloride are protected.

Described jacket layer material is made up of the raw material of following weight portion: polyurethane rubber 40-50, butadiene-styrene rubber 20-30, ethylene-chlorotrifluoro-ethylene copolymer 20-30, cumyl peroxide 2-3, trihydroxy methyl propane trimethyl acrylate 1.5-2.5, nano boron carbide 5-10, nano-silicon nitride 8-14, antimony pentasulfide 2-3, aluminium hydroxide 10-15, Firebrake ZB 5-10, zinc stearate 1-2, atoleine 3-6, blanc fixe 12-18, mica powder 6-12, dibutyl phthalate 10-15, antioxidant D NP1-2, modified mineral filler 16-22,

The preparation method of described modification complex mineral filler is as follows: (1) 4-8:3-5:2-3:1 takes barite in mass ratio, olivine, attapulgite, illite mix, pulverize, cross 50-100 mesh sieve, then at 820-880 DEG C of temperature lower calcination 20-30min, continue to be warming up to 1050-1150 DEG C, calcining 2-3h, shrend, dries; (2) get be equivalent to complex mineral filler weight 2-3 absolute ethyl alcohol doubly, 40-50% 4, the compounded mix that glyoxal ethyline and the step (2) of 4'-MDA epoxy resin, 2-4% process mixes, heating water bath is to 120-140 DEG C, 500-1000rpm high-speed stirred 0.5-1h, filter, dry; (3) get the ethylene propylene diene rubber, the Nomex of 15-25%, the ethylene methyl methacrylate copolymer of 5-10%, the pentaerythrite volution phosphoric acid phenol ester of 5-10%, the vaseline of 3-5%, the Nanometer-sized Neodymium Oxide of 1-2% that are equivalent to complex mineral filler weight 30-40% together to drop into double screw extruder after mixing with the complex mineral filler that step (2) processes and carry out melt blending, then extruding pelletization, naturally cool to room temperature, be modification complex mineral filler.

The preparation method of described jacket layer material, comprise the following steps: take in polyurethane rubber, ethylene-chlorotrifluoro-ethylene copolymer, trihydroxy methyl propane trimethyl acrylate, antimony pentasulfide, atoleine, zinc stearate, the mill of dibutyl phthalate input, mixing 4-8min under roller temperature is 80-90 DEG C of temperature, then dancer rools temperature is to 55-65 DEG C, add the mixing 8-14min of all the other raw materials, park 5-10h, discharging.

Advantage of the present invention is:

Inner structure level of the present invention is simple, but do not affect whole cable insulation, block water, the various performance such as resistance to compression, easy for installation, Practical Performance is good.Cable jacket material of the present invention has excellent radiation-resistant property and ageing resistance, also has that hot strength is high, physical and mechanical properties good, chemically stable is good, fire resistance is good and the advantage of low smoke, zero halogen low toxicity, long service life.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

Embodiment

See Fig. 1, a kind of control cables, include multiple conducting wires 1, the stranded formation of described multiple conducting wires 1 two groups, and the wire often organized is coated with insulating barrier 2, the insulating barrier 2 of described two groups of wires is outer is coated with low-smoke non-halogen flame-retardant band lapping layer 3 jointly, and in low-smoke non-halogen flame-retardant band lapping layer 3, be provided with I shape polyamide skeleton 4, described I shape polyamide skeleton 4 surrounds two groups of wires; Described low-smoke non-halogen flame-retardant band lapping layer 3 is outer is coated with semiconductive shielding layer 5, dacron thread braiding tear resistant layer 6, restrictive coating 7 successively, is filled with the mixture 8 of waterproof paste and water-proofing powder between dacron thread braiding tear resistant layer 6 and restrictive coating 7.

Described restrictive coating 7 material is made up of the raw material of following weight portion: polyurethane rubber 45, butadiene-styrene rubber 25, ethylene-chlorotrifluoro-ethylene copolymer 30, cumyl peroxide 2.5, trihydroxy methyl propane trimethyl acrylate 2, nano boron carbide 8, nano-silicon nitride 12, antimony pentasulfide 2, aluminium hydroxide 15, Firebrake ZB 7, zinc stearate 1.5, atoleine 4, blanc fixe 16, mica powder 8, dibutyl phthalate 12, antioxidant D NP1.5, modified mineral filler 18;

The preparation method of described modification complex mineral filler is as follows: (1) 6:4:3:1 takes barite in mass ratio, olivine, attapulgite, illite mix, pulverize, cross 80 mesh sieves, then at 860 DEG C of temperature lower calcination 25min, continue to be warming up to 1050 DEG C, calcining 3h, shrend, dries; (2) get and be equivalent to the absolute ethyl alcohol of complex mineral filler weight 2 times, 45% 4,4'-MDA epoxy resin, 3% glyoxal ethyline mix with the compounded mix that step (2) processes, heating water bath to 125 DEG C, 500rpm high-speed stirred 1h, filter, dry; (3) get be equivalent to complex mineral filler weight 40% ethylene propylene diene rubber, 20% Nomex, the ethylene methyl methacrylate copolymer of 8%, pentaerythrite volution phosphoric acid phenol ester, the vaseline of 4%, the Nanometer-sized Neodymium Oxide of 1.5% of 7% together drop into double screw extruder after mixing with the complex mineral filler that step (2) processes and carry out melt blending, then extruding pelletization, naturally cool to room temperature, be modification complex mineral filler.

The preparation method of described restrictive coating 7 material, comprise the following steps: take in polyurethane rubber, ethylene-chlorotrifluoro-ethylene copolymer, trihydroxy methyl propane trimethyl acrylate, antimony pentasulfide, atoleine, zinc stearate, the mill of dibutyl phthalate input, mixing 4-8min under roller temperature is 80-90 DEG C of temperature, then dancer rools temperature is to 55-65 DEG C, add the mixing 8-14min of all the other raw materials, park 5-10h, discharging.

After testing, the results of property of obtained CABLE MATERIALS is as following table:

Claims

1. a control cables, include multiple conducting wires, it is characterized in that: the stranded formation of described multiple conducting wires two groups, and the wire often organized is coated with insulating barrier, the insulating barrier of described two groups of wires is coated with low-smoke non-halogen flame-retardant band lapping layer outward jointly, in low-smoke non-halogen flame-retardant band lapping layer, be provided with I shape polyamide skeleton, described I shape polyamide skeleton surrounds two groups of wires; Described low-smoke non-halogen flame-retardant band lapping layer is coated with semiconductive shielding layer, dacron thread braiding tear resistant layer outward successively ,restrictive coating, is filled with the mixture of waterproof paste and water-proofing powder between dacron thread braiding tear resistant layer and restrictive coating.

2. control cables according to claim 1, it is characterized in that described jacket layer material is made up of the raw material of following weight portion: polyurethane rubber 40-50, butadiene-styrene rubber 20-30, ethylene-chlorotrifluoro-ethylene copolymer 20-30, cumyl peroxide 2-3, trihydroxy methyl propane trimethyl acrylate 1.5-2.5, nano boron carbide 5-10, nano-silicon nitride 8-14, antimony pentasulfide 2-3, aluminium hydroxide 10-15, Firebrake ZB 5-10, zinc stearate 1-2, atoleine 3-6, blanc fixe 12-18, mica powder 6-12, dibutyl phthalate 10-15, antioxidant D NP 1-2, modified mineral filler 16-22,

3. control cables according to claim 2, it is characterized in that the preparation method of described jacket layer material, it is characterized in that comprising the following steps: take in polyurethane rubber, ethylene-chlorotrifluoro-ethylene copolymer, trihydroxy methyl propane trimethyl acrylate, antimony pentasulfide, atoleine, zinc stearate, the mill of dibutyl phthalate input, mixing 4-8min under roller temperature is 80-90 DEG C of temperature, then dancer rools temperature is to 55-65 DEG C, add the mixing 8-14min of all the other raw materials, park 5-10h, discharging.