Great Wall Cable Co.,Ltd.
Add: Yaotai Industrial Zone,Jiajiakou Town,Ningjin County, Xingtai City,Hebei Province.
International Trade: 0086-311-87761517
Phone Sales: 0086-319-5460899
Copyright © 2019 Great Wall Cable Co., Ltd. 冀ICP备09018508号-1 Powerby: 300.cn
YDF series prefabricated branch cables
Variety and type of YDF series prefabricated branch cables
2.1 YJV- XLPE insulated PVC sheathed power cable
2.2 ZR-YJV- XLPE insulated PVC sheathed flame-retardant power cable
2.3 NH-YJV- XLPE insulated PVC sheathed fire-retardant power cable
2.4 VV- PVC insulated PVC sheathed power cable
2.5 ZR-VV- PVC insulated PVC sheathed flame-retardant power cable.
2.6 NH-VV- PVC insulated PVC sheathed fire-resistant power cable.
注：1.Except otherwise instruction, all the cables are copper single-core low-voltage power cables with a rated voltage (uo/u) of 0.6/1kV.
2.All main cables are black sheathed power cables.
3.Except otherwise instruction, branch cables all adopt power cables same with that of main cables.
4.If you require the use of color (yellow, red, green, light blue or olivine) BV-500 type wire for branch wires, please specify in detail when ordering.
Variety and type of YDF series of safe and clean (environmentally-friendly) prefabricated branch cables
3.1 XLPE insulated safe and clean power cable
SC1A-CE XLPE insulated halogen-free polyolefin sheathed safe and clean power cable
SC3A-CV XLPE insulated low-halogen PVC sheathed safe and clean power cable
SC3C-CV XLPE insulated low-halogen PVC sheathed safe and clean power cable
3.2 Safe and clean fire-resistant cable
SC1-FPB-CE XLPE insulated halogen-free polyolefin sheathed safe and clean fire-resistant cable
SC3-FPB-CV XLPE insulated low-halogen PVC sheathed safe and clean fire-resistant cable
Variety and type of YDF series of oxygen-barrier prefabricated branch cables
4.1 GZR-YJV XLPE insulated PVC sheathed oxygen barrier flame-retardant power cable
4.2 GDL-YJV XLPE insulated low-smoke and low-halogen PVC sheathed oxygen barrier flame-retardant power cable
4.3 GWL-YJE XLPE insulated halogen-free low-smoke polyolefin sheathed oxygen barrier flame retardant power cable
4.4 GNH-YJV XLPE insulated PVC sheathed oxygen barrier fire-retardant power cable
4.5 GNH-YJE XLPE insulated polyolefin sheathed oxygen barrier fire-retardant power cable
Key features of YDF series of prefabricated branch cables
5.1 Insulation resistance ≥200MW;
5.2 Dielectric strength ≥3.5KV / 5min;
5.3 Good air tightness and water resistance: immerse the branch joints in water, measure the insulation resistance and power frequency withstand voltage between water and cable core, all the results are in line with the requirements of 1 and 2.
5.4 Contact resistance of branch joints is small, ratio of contact resistance and reference resistance of the same length ≤1.2
5.5 Joint short-circuit strength is huge, change rate of contact resistance ratio after short circuit≤0.2;
5.6 ZR-YJV type flame-retardant prefabricated branch cable, sheath self-extinguishing time ≤12S; in line with GB12666.5;
5.7 In addition to power supply in normal working conditions, NH fire-retardant type can maintain normal operation for 90min even in case of combustion, in line with GB12666.6;
5.8 The maximum working temperature of VV type cable’s cooper core can reach70 ℃ and that of the copper core of YJV type cable up to 90℃;
5.9 With excellent corrosion resistance, it can resist corrosion of inorganic salts, oils, alkalis, acids and organic solvents;
5.10 YJV type prefabricated branch cable has excellent thermal stability and aging resistance.
5.11 SC1A-CE prefabricated safe and clean (environmentally friendly) branch cable. It features low toxicity, low smoke, halogen-free (low halogen), flame-retardant, safe and clean.
5.12 SC1-FPB-CE safe and clean (environmentally friendly) fire-retardant branch cable. It features low toxicity, low smoke, halogen-free (low halogen), flame-retardant, safe and clean, and fire-retardant.
5.13 GZR-YJV oxygen barrier (highly flame-retardant), highly fire-resistant branch cable. With high flame-retardant property, its flame retardant performance is superior to standard grade-A.
Main advantages of YDF series of prefabricated branch cables
6.1With excellent safety and reliability of power supply
6.1.1 Main cable conductors have no joints, achieve good continuity and reduce fault points.
6.1.2 Branch joints are made by machine in the whole process in factories, greatly reducing quality problems due to human factors.
6.1.3 Structure of the branch joint is reasonable, advanced LYZ production process is adopted, the contact resistance is extremely small and shall not be affected by thermal expansion.
6.1.4 Complete die sheath in a short time to avoid contact resistance changes caused by oxidation due to the joint’s contact with the copper core and exposure in the air for a long time
6.1.5 Branch joints have strict technical standard, test requirements and strict quality assurance system.
6.2 Easy installation, low environmental requirements, convenient construction
6.2.1 Occupy a small building area, conducive to the effective use of building area
6.2.2 Low working environment requirements and low installation precision requirements
6.2.3 Easy and convenient installation, less demanding installation technology, short installation period, only 1/10 or 1/20 of the busway installation time, small installation intensity
6.2.4 Its small bending radius greatly reduces the installation difficulty and the spatial size.
6.3 Excellent shock resistance, air tightness, waterproofness and fire resistance
6.3.1 Excellent shock resistance. Joints may become loose when the wall is shaken in case of mechanical connection of busway joints, but SDF series of prefabricated branch cables will not be affected. Especially when passing through building settlement joints, no special measures are needed.
6.3.2 Good air tightness and water resistance, can supply power normally in wet environments, can also be laid and used in the air or underground, but it is absolutely impossible for busway.
6.3.3 Use NH type prefabricated branch cable, can maintain 90 minutes of normal power supply in case of combustion.
6.4.1 After being installed according to specified methods of prefabricated branch cable, the one-time opening rate is high.
6.4.2 A prefabricated branch cable system operating normally needs no maintenance usually
6.5 Can significantly reduce distribution costs
6.5.1 Compared with busways, can reduce the building costs of projects, and the technical and economic indicators are high, while the overall economic benefit is remarkable.
6.6 A wide range of varieties and specifications, flexible choice, arbitrary combination
6.6.1 The main cable from 10mm2 to 1,200mm2 and branch cable from 4mm2 to 300mm2 can be combined freely
6.6.2 A wide range of cable varieties, including VV, ZR-VV, NH-VV, YJV, ZR-YJV, NH-YJV, SC1A-CE, SC3A-CV, SC1-FPB-CE, SC3-FPB-CV, GZR-YJV, GDL -YJV, GWL-YJV, GWL-YJE, GNH-YJV and GNH-YJE can be selected as needed.
6.6.3 Branch joints can set the branch location freely according to needs of the floor