Control cable
Control cable is suitable for industrial and mining enterprises, energy and transportation departments, supplying AC rated voltage450/750< /span>Used in occasions such as control and protection circuits below volts
Rated voltage:U0/Uis450/750V.
The long-term operating temperature of the conductor core is70℃, 90℃Two types, the cable laying temperature varies Below0℃.
The recommended allowable bending radius of the cable is as follows:
NoneArmored cable, should be no less than 6 times;
Armored or copper tapeShielded cable, should not be less than 12 times of the outer diameter of the cable;
Shielded flexible cable, not less than the outer diameter of the cable6 times.
Control cable generally refers to the power supply of equipment and instruments/Signal control
Representative model:KVV, KVV2, KVVP, KVVR, KVVP2, KYJV, KYJVP, KYJVP2、KYJVP2-22etc. and various flame retardant, fire-resistant, low-smoke halogen-free flame retardant and fire-resistant series.
ProductExecution standards:GB/T 9330-2008.
Example of product model description
KVV Copper core PVC insulated PVC sheathControl cables are mainly laidlocated indoors,Cable trench, pipes and other fixed occasions
KVV22 Copper core PVC insulated PVC sheathed steel tape armored ControlCable, Layed indoors, directly buried in cable trenches, pipelines and other fixed places that can withstand large mechanical external forces
KVVPCopper core PVC insulated PVC
Product Name: Xinbaofeng-Mineral insulated cable
Model: BTLY
Main uses: Mineral insulated cableBTLY cable is a special type, using special aluminum metal sheath instead of expensive copper sheath
Product introduction:
Mineral insulated cableBTLY cable is a special type, using special aluminum metal sheath instead The expensive copper sheath reduces costs, improves production efficiency, and inherits fire and explosion-proof properties. According to statistics, BTLY cables are currently very commonly used as fire-proof cables on the market, and their market applications are very mature.
BTLY cable product structure:
In addition, our company mass-producesmineral cables, includingYTTW cable, BBTRZ cable, BTTZ cable, BTLY cable and other high-tech mineral insulated non-combustible cables
BTLY cable is a mineral insulated cable (mineral insulated non-combustible cable); BTLY is composed of stranded copper conductors, mineral insulation layer, aluminum sheath, isolation layer, fire-resistant layer, The halogen-free low-smoke outer sheath is a solid assembly made of six parts. It is a new type of flexible aluminum sheathed isolated mineral insulated cable.
BTLY cable is a new generation of mineral insulated cable developed on the basis of BTTZ cable. In addition to having the advantages of BTTZ cable, it also overcomes the problems and defects of BTTZ cable. And because the production length is not limited, there is no need for intermediate joints. It saves 20-25% in investment cost compared to BTTZ cable. The BTLY cables produced by Nanxian Cable are superior to BTTZ in terms of performance and price. The BTLY cables produced by Nanxian Cable comply with the British BS6387 standard and can meet various relevant fire safety regulations in my country.
The conductor of BTLY cable is made of stranded copper wires, and the insulation layer is made of mineral insulation material. The aluminum sheath is made of aluminum soft sheath, processed by special technology, the isolation layer is made of magnesium hydroxide or aluminum hydroxide mineral material, and the outer sheath is made of low-smoke halogen-free or better plastic material.
BTLY cable is the first of its kind in China and there is no prototype in the world. Compared with the BTTZ series metal outer sheath cables, the product can achieve continuous large lengths and multi-core cables within 240mm, overcoming the shortcomings of too many joints.
BTLY cables use aluminum as the main material. Metal tube extrusion instead of copper tube drawing not only simplifies the process and improves efficiency, but also significantly reduces product costs (aluminum is only copper material 1/10 of the comprehensive cost). The reason why aluminum pipes can replace copper pipes and do not melt under high-temperature flames is due to the expanded refractory layer extruded on the outside of the aluminum pipes: when attacked by flames, the expansion layer foams and solidifies, forming a thick barrier that blocks the flame from the aluminum. direct injection of the tube. Not only is the integrity of the aluminum tube preserved, but the heating temperature of the mica tape is reduced to below 600°C, and the stability of the mica tape insulation is undoubtedly improved (the insulation resistance of the mica tape increases as the temperature decreases).
1. Cable conductor: It is made of stranded copper wires and has good bending characteristics.
2. Insulation layer: made of mineral insulation material.
3. Aluminum sheath: Made of aluminum soft sheath, processed with special technology, it has good electrical conductivity, resistance to mechanical impact, flexible bending and other characteristics (can replace ground wire).
4. Isolation sleeve: Use cross-linked polyethylene waterproof isolation layer.
5. Isolation layer: Made of mineral materials such as magnesium hydroxide or aluminum hydroxide, it has high temperature resistance and fireproof properties.
6. Outer sheath: Made of low-smoke, non-toxic or better plastic material with good anti-corrosion properties. Materials with different grades can be selected according to requirements (can be select).
BTLY cable production standards:
1. BS 6387:1994 Performance requirements for cables to maintain circuit integrity under flame conditions;
2. GB/T12706.1-2008 "Extruded insulated power cables and accessories with rated voltage 1kV (Um=1.2kV) to 35kV (Um=40.5kV)"; < /span>
3. Follow corresponding corporate standards.
BTLY cable features
① The fire resistance standard can pass the three assessments of BS6387: no breakdown under flame at 950℃ for 3h, withstand 15min of water spray after 30min at 650℃ (direct immersion in water is also acceptable), It can withstand 15 minutes of knocking vibration under a 950℃ flame without being damaged, thus fully meeting the BTT assessment standards in terms of fire resistance.
②This product can produce 1~37 cores in 1.5~6 square meters, 1~5 cores in 10~240 square meters, and single cores in 300~630 square meters, length According to the user's needs, the whole piece without joints can be delivered in a complete package.
③ There is no need to wear additional pipes when laying, and it has the same waterproof and impact-proof functions as BTT.
④ It has good anti-rat, anti-ant and anti-radiation functions, which can ensure the stability, long life and durability of the cable.
⑤ Low operating temperature, small line loss, strong overload resistance, long service life, and high safety. It is especially suitable for applications in projects with environmental protection requirements.
⑥Explosion-proof (highly compacted insulating materials in cables and cable terminals installed with special sealing sleeves can prevent steam, gas and flame from entering the electrical equipment connected to the cable, so it is suitable for Places with explosion risks and connections of various explosion-proof equipment and equipment.)
⑦Corrosion resistance (The metal sheath of BTLY mineral insulated cable has high corrosion resistance. For most devices, it does not require additional protective measures; even if the cable In places where the metal sheath is susceptible to chemical corrosion or severe industrial pollution, because the outermost layer of the cable is protected by a plastic outer sheath, it is still safe.)
⑧High mechanical strength (BTLY mineral insulated cable is strong and durable, and can still work normally when the cable diameter is deformed by one third, even if it undergoes severe mechanical damage. Will not damage its electrical properties.)
Main applications of BTLY cable:
Trunk lines, fire lines, escape and rescue systems, such as emergency lighting, fire monitoring, alarm systems, elevator systems, smoke exhaust systems, and control lines, etc.