PVC insulation 70 ℃ XLPE 90 ℃ low ambient temperature: the ambient temperature when laying cables should not be lower than - 40 ℃; PVC sheathed cable shall not be lower than 0 ℃. 2. The cable installation and laying temperature shall not be lower than - 25 ℃. 3. Allowable bending radius of cable: the cable size is 10 times of the outer diameter of the cable Four: Basic models and names Table 1 Model name BPGGP silicone rubber insulated and sheathed copper wire braided shield high-temperature variable frequency power cable. BPGGP2 silicon rubber insulated and sheathed copper tape wrapped shield high temperature resistant variable frequency power cable. BPGGPP2 silicone rubber insulated and sheathed copper wire braided copper tape wrapped shield high-temperature variable frequency power cable. BPGGP3 silicon rubber insulated and sheathed aluminum polyester composite film wrapped shield high temperature resistant variable frequency power cable. BPGVFP silicone rubber insulation * sheath copper wire braiding shielding resistance High temperature frequency conversion power cable 。 BPGVFP2 silicone rubber insulated * sheathed copper tape wrapped shield high temperature resistant variable frequency power cable. BPGVFPP2 silicone rubber insulated * sheathed copper wire braided copper tape wrapped shield high-temperature variable frequency power cable. BPGVFP3 silicone rubber insulated * sheathed aluminum polyester composite film wrapped shield high temperature resistant variable frequency power cable. BPFFP fluorine 46 insulated and sheathed copper wire braided shield high temperature resistant variable frequency power cable. BPFFP2 fluorine 46 insulated and sheathed copper tape wrapped shield high temperature resistant variable frequency power cable. BPFFPP2 fluorine 46 insulated and sheathed copper wire braided copper tape wrapped shield high-temperature variable frequency power cable BPFFP3 fluorine 46 insulated and sheathed aluminum polyester composite film wrapped shield high-temperature variable frequency power cable. BPVVP PVC insulated and sheathed copper wire braided shield frequency conversion power cable. BPVVP2 PVC insulated and sheathed copper tape
Product executive standard
Q/HL005-2002.1 Rubber control cable, silicone rubber shielded cable, silicone rubber oil resistant cable, silicone rubber motor lead wire, silicone rubber high-temperature cable, flame retardant silicone rubber cable, silicone rubber wrapped shield frequency conversion power cable. BPVVPP2 PVC insulated and sheathed copper wire braided copper tape wrapped shielding frequency conversion power cable. BPVVP3 PVC insulated and sheathed aluminum polyester composite film wrapped shielded frequency conversion power cable. BPYJVP XLPE insulated PVC sheathed copper wire braided shield frequency conversion power cable. BPYJVP2 XLPE insulated PVC sheathed copper tape wrapped shielded frequency conversion power cable. BPYJVPP2 XLPE insulated PVC sheathed copper wire braided copper tape wrapped shielding frequency conversion power cable. BPYJVP3 XLPE insulated PVC sheathed aluminum polyester composite film wrapped shielding frequency conversion power cable. Note: The copper wire in the conductor core can be tinned, ZR is added in front of the flame-retardant cable model, and R is added for the flexible structure cable
Shielded control cable, silicone rubber flat cable, silicone rubber mobile cable, silicone rubber high-voltage cable, silicone rubber flexible cable, tinned silicone rubber shielded cable, tinned silicone rubber flexible cable
Specific models include silicone rubber cable models: silicone rubber shielded cable, flame retardant silicone rubber cable, silicone rubber control cable, silicone rubber armored cable, silicone rubber oil proof flexible cable, silicone rubber mobile flat cable, silicone rubber traveling mobile cable, tinned silicone rubber oil proof and temperature resistant cable, silicone rubber high-temperature cable, silicone rubber oil resistant cable, silicone rubber flexible cable, tinned silicone rubber lead wire Silicone rubber motor cable, silicone rubber insulated motor cord
This product is applicable to the connection line or signal transmission of electrical instruments for mobile or fixed laying with AC rated voltage of 450/750V and below,
The cable has good thermal stability, and can maintain good electrical performance and flexibility in high temperature, low temperature and corrosion. It is suitable for
It is used in metallurgy, electric power, petrochemical and other industries with special requirements such as mobile temperature resistance.
2： Product executive standard
Q/HHTZH004.2
Flame retardancy and fire resistance test shall be carried out in accordance with GB12666-90 standard
3： Use Properties
1. Rated voltage: U0/U 450/75 AC rated voltage: U0/U 450/750KV
Working temperature: 180 ℃ silicone rubber cable is another wear-resistant cable that uses rubber as insulation sheath after rubber sheathed cable, but at the same time its performance is better than rubber sheathed cable, especially its corrosion resistance and temperature resistance, which is far more than rubber sheathed material. It is an ideal substitute for rubber sleeve materials. The cable is especially suitable for various mobile occasions, motor lead wires, etc. Specifically: high temperature resistant silicone rubber cable, silicone rubber shielded cable, flame retardant silicone rubber cable, silicone rubber flat mobile cable, silicone rubber flexible cable, silicone rubber armored cable
Low ambient temperature: silicone rubber sheath: fixed laying - 60 ℃, non fixed laying - 20 ℃
The cable installation and laying temperature shall not be lower than - 20 ℃.
Allowable bending radius of cable: the size of non armored cable is 6 times of the outer diameter of cable
Operating temperature: 180 ℃
Low ambient temperature: silicone rubber sheath: fixed laying - 60 ℃, non fixed laying - 20 ℃
The cable installation and laying temperature shall not be lower than - 20 ℃.
4. Allowable bending radius of cable: The size of non armored cable is 6 times of the outer diameter of the cable. This product is applicable to the high temperature range and harsh environment with rated voltage of 0.6/1kV and below, as the power transmission line of electrical equipment. It has excellent characteristics of high temperature resistance, flame retardancy, radiation resistance, aging resistance, ozone resistance, waterproof, and has good cold resistance and weather resistance.
Silicone rubber flexible cable ZR-JGPVFP copper core braided Class 2 conductor
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Most of ordinary polymer materials become ashes after flame combustion, and few can become ceramic objects, so they can not isolate the flame. Ceramic fire-resistant silicone rubber is non-toxic and tasteless at room temperature, with good flexibility and elasticity, and has the characteristics of silicone rubber. Under the high temperature and flame ablation above 500 ℃, the organic components will be ablated and transformed into hard ceramic like substances in a very short time, forming a layer of good isolation to prevent the flame from continuing to burn. The longer the ablation time and the higher the temperature, the more obvious the hard effect. Some models of ceramic refractory silicone rubber can withstand 12001500 ℃. Ceramic fire-resistant silicone rubber can be produced with conventional rubber processing equipment. The products produced have the physical and mechanical properties and other properties of silicone rubber, and have good processability.
Ceramic fire-resistant silicone rubber is neither flame retardant nor flame retardant. The action mechanism of flame retardant adhesive and flame retardant adhesive is to add organic and inorganic flame retardant materials to the polymer materials. During the combustion process, the generated materials can gradually extinguish the flame, so as to achieve the flame retardant effect. However, in a fire, the flame is constantly burning, and the flame retardant and fire-retardant adhesives will become ashes after burning, so they can not play the role of fire fighting and fire prevention. This kind of flame retardant wire and cable made of flame retardant and fire-retardant rubber can not and can not ensure the smooth communication and power in the fire, and the safety of personnel and property can not be guaranteed. Ceramic fire-resistant silicone rubber overcomes the above shortcomings and is a new type of polymer composite fireproof material with broad application prospects.
The main material of vitrified fire-resistant silicone rubber is high-temperature silicone rubber (HTV). At room temperature, it has the basic characteristics of silicone rubber, non-toxic, tasteless, high and low temperature resistance, ozone aging resistance, weather aging resistance, excellent electrical insulation performance, and also has good processing performance of ordinary high-temperature silicone rubber.
Under the ablation of the flame, the vitrified fire-resistant silicone rubber starts to be sintered into the insulating layer of the hard ceramic shell after burning for 1-2min. The insulating layer of the hard ceramic shell can effectively block the continuous combustion of the flame and cut off the smoke 2-3 min after burning. In the next process of blocking the flame, no smoke will be generated by itself. The smoke generated in the first 2-3 minutes is also non-toxic and halogen-free. Smoke is mainly generated after the combustion of organosilicon, which does not contain toxic and halogenated substances.
The processing method of vitrified fire-resistant silicone rubber is the same as that of ordinary high-temperature silicone rubber compound. It has good extrudability and molding property. It can be directly extruded and vulcanized into wires and cables with silicone rubber wire and cable equipment, without adding equipment, nor requiring huge equipment investment like magnesium oxide mineral fire-resistant insulated cables, It also does not need to be wound many times like the fire-resistant cable wound with mica tape, which is time-consuming and can greatly reduce the cost. The wires and cables produced with ceramic fire-resistant silicone rubber can greatly reduce the cost, and can be laid and installed as easily as ordinary wires and cables, without the complex laying of magnesium oxide mineral fire-resistant insulated cables, which provides the precondition and foundation for the widespread popularization and application of fire-resistant wires and cables.
Ceramic fire-resistant silicone rubber fireproof wires and cables have good fire protection and fire prevention characteristics, making them widely used in places with high requirements for public fire protection and fire safety, such as ordinary civil disasters, high-rise buildings, elevators, large and small supermarkets, subways, airports, stations, hospitals, banks, office buildings, hotels, postal and telecommunications buildings, exhibition halls Libraries, museums, ancient buildings, schools, power buildings, public entertainment places, tunnels, underground buildings, warehouses, etc., can also be used in metallurgy, steel, coke, coal mines, power plants, power transmission and transformation plants, shipbuilding, petroleum, chemical industry, medicine, nuclear power plants, aerospace, military, paper making and other industries, as well as household appliances, automobiles, public transport facilities, etc. Ceramic fire-resistant silicone rubber fireproof wires and cables have broad application prospects Introduction Silicone rubber is mainly a polymer material formed by replacing carbon with silicon, which is a straight chain high molecular weight
polysiloxane The molecular weight is generally more than 150000. The nature of the silicon oxygen bond that forms the main chain of silicone rubber determines that silicone rubber has the advantages that natural rubber and other rubbers do not have. It has a wide operating temperature range (- 100 ℃~350 ℃) and excellent high and low temperature resistance. In addition, it also has excellent thermal stability, electrical insulation, weather resistance, ozone resistance, air permeability High transparency, tear strength, excellent heat dissipation, excellent adhesion, fluidity and release. Some special silicone rubbers also have excellent oil resistance, solvent resistance, radiation resistance and use at ultra-high and low temperatures. Within the temperature range of use, silicone rubber can not only maintain certain softness, resilience and surface hardness, but also have no obvious change in mechanical properties, and can resist long-term thermal aging. The silicone rubber vinyl silicone rubber commonly used for wires and cables has a working temperature range of - 60 ℃~180 ℃. Because silicone rubber has the above excellent performance, it can be used as the silicone rubber cable made of insulation and sheath materials of wires and cables, and can be moved at high and low temperatures. It has the advantages of water resistance, ozone resistance, arc resistance, corona resistance and weather aging resistance, and is not easy to damage and crack, These properties are not available for general high-temperature cables. In addition, silicone rubber cables also have the advantages of good self-cleaning performance, and have the characteristics of salt spray corrosion resistance when laid and used in coastal areas. Therefore, silicone rubber cables have a wide range of applications. The use of silicone rubber cables in China has become more and more extensive. This article will focus on the application of sulfur connecting production line to produce silicone rubber cables in our company. 2 Equipment and material equipment: 400 open mill Φ 65 sulfur connection production line Φ 120 sulfur connection production line Material: silicone rubber (brand HD6770) 2, 4-dichlorophenyl hydroxyl silicone oil 3 Technical key points: to use sulfur connection production line to produce silicone rubber cable, first of all, it must ensure that silicone rubber materials can be extruded normally in the rubber extruder, and second, silicone rubber materials cannot be vulcanized in advance in the head, The third silicone rubber material shall be able to be fully vulcanized in the vulcanization pipe. Therefore, it is necessary to consider the problems of rubber extrusion machine transformation, mold improvement, vulcanization pipe transformation, material improvement and correct setting of extrusion vulcanization process. 3.1 Rubber extruder transformation Because silicone rubber is a soft paste material, it does not need to be heated in the extrusion process, so it is a normal temperature extrusion. It is difficult to establish normal pressure in the rubber extruder. During the extrusion process, silicone rubber materials slip in the barrel and cannot be extruded smoothly. To solve this problem, our company has carried out technical transformation on the rubber extruder, and added a side pressure roll in the feeding area. The side pressure roll is driven by a gear and rotates with the screw. The rotation direction is opposite to the screw, playing the role of forced feeding. In addition, in order to prevent the extruder temperature from rising during extrusion, we cleaned the extruder screw, body and head cooling system to ensure a good cooling effect during extrusion. 3.2 Mold improvement and vulcanization tube transformation Because the silicone rubber material uses 2,4-dichloroperobenzoyl peroxide as the vulcanizing agent, vulcanization can start at 90 ℃, while the sulfur linking production line uses steam vulcanization, the steam directly contacts the mold surface, and the silicone rubber produced for a long time may be vulcanized in the die head, resulting in extrusion defects. The company has improved the mold, reducing the volume of materials in the head through the precise matching between the molds, and polishing the outer surface of the mold core and the inner surface of the mold sleeve for extruding silicone rubber; Add spacer water cooling at the * section of the vulcanization pipe, move the steam inlet of the vulcanization pipe from the upper part to the middle and lower part, and conduct continuous water cooling at the die mouth of the head to reduce the temperature of the die surface as much as possible. 3.3 Material improvement The silicone rubber material will produce "structured" phenomenon during storage, which will make the rubber material hard, the process performance worse, and the physical and mechanical properties decline. The simple method to judge whether the silicone rubber material is structured is to touch it with your hand. If the material is hard or a piece of material is broken off with your hand, and a white line appears at the material separation, the material has been structured. The heat generated by using structured silicone rubber during extrusion will increase. The rubber begins to vulcanize in the rubber extruder, and the extruded cable surface is orange peel or broken. The more effective way to eliminate structure is to add a little silicone oil in the process of rubber mixing, sulfur adding and coloring. Research shows that silicone rubber materials have better aging properties after adding silicone oil.
Silicone rubber flexible cable ZR-JGPVFP copper core braided Class 2 conductor
