YDF series prefabricated branch cable varieties and models

2.1 YJV - Cross-linked polyethylene insulated polyvinyl chloride sheathed power cable.

2.2 ZR-YJV - Cross-linked polyethylene insulated polyvinyl chloride sheathed flame-retardant power cable.

2.3 NH-YJV - Cross-linked polyethylene insulated polyvinyl chloride sheathed fire-resistant power cable.

2.4 VV - Polyvinyl chloride insulated polyvinyl chloride sheathed power cable.

2.5 ZR-VV - Polyvinyl chloride insulated polyvinyl chloride sheathed flame-retardant power cable.

2.6 NH-VV - Polyvinyl chloride insulated polyvinyl chloride sheathed fire-resistant power cable.

Note: 1. Unless otherwise specified, all cables are rated voltage (uo/u) of 0.6/1KV copper single-core low-voltage power cables.

2. The main cable is made of black sheathed power cable.

3. Branch cables, unless otherwise specified, use the same type of power cable as the main cable.

4. If color marking (yellow, red, green, light blue, yellow-green) BV-500 type wire is required for branch lines, it should be specified in detail when ordering.

YDF series safe and clean (environmentally friendly) prefabricated branch cable varieties and models

3.1 Cross-linked polyethylene insulated safe and clean power cable

SC1A-CE cross-linked polyethylene insulated halogen-free polyolefin sheathed safe and clean power cable.

SC3A-CV cross-linked polyethylene insulated low-halogen polyvinyl chloride sheathed safe and clean power cable.

SC3C-CV cross-linked polyethylene insulated low-halogen polyvinyl chloride sheathed safe and clean power cable.

3.2 Safe and clean fire-resistant cable

SC1-FPB-CE cross-linked polyethylene insulated halogen-free polyolefin sheathed safe and clean fire-resistant cable.

SC3-FPB-CV cross-linked polyethylene insulated low-halogen polyvinyl chloride sheathed safe and clean fire-resistant cable.

YDF series oxygen barrier prefabricated branch cable varieties and models

4.1 GZR-YJV cross-linked polyethylene insulated polyvinyl chloride sheathed oxygen barrier flame-retardant power cable.

4.2 GDL-YJV cross-linked polyethylene insulated low-halogen low-smoke polyvinyl chloride sheathed oxygen barrier flame-retardant power cable.

4.3 GWL-YJE cross-linked polyethylene insulated halogen-free, low-smoke polyolefin sheathed oxygen barrier flame-retardant power cable.

4.4 GNH-YJV cross-linked polyethylene insulated polyvinyl chloride sheathed oxygen barrier fire-resistant flame-retardant power cable.

4.5 GNH-YJE cross-linked polyethylene insulated polyolefin sheathed oxygen barrier fire-resistant flame-retardant power cable.

Main characteristics of YDF series prefabricated branch cables

5.1 Insulation resistance ≥ 200MW;

5.2 Insulation withstand voltage ≥ 3.5KV/5min;

5.3 Good air tightness and waterproofing, that is, immersing the branch joint in water, measuring the insulation resistance and power frequency withstand voltage between the water and the cable core both meet the requirements of 1 and 2.

5.4 The contact resistance of the branch joint is small, and the ratio of contact resistance to the equivalent length reference resistance is ≤ 1.2;

5.5 The short-circuit strength of the joint is large, and the rate of change of the contact resistance ratio after a short circuit is ≤ 0.2;

5.6 ZR-YJV type flame-retardant prefabricated branch cable, the self-extinguishing time of the sheath is ≤ 12S; meets the requirements of GB12666.5;

5.7 NH fire-resistant type can not only supply power under normal working conditions but can also maintain normal operation for 90 minutes in case of combustion; meets the requirements of GB12666.6;

5.8 The maximum working temperature of the copper core of VV type cable can reach 70℃, and the maximum working temperature of the copper core of YJV type cable can reach 90℃;

5.9 Excellent corrosion resistance, able to resist corrosion from 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 has characteristics such as low toxicity, low smoke, halogen-free (low halogen) flame-retardant safety and cleanliness.

5.12 SC1-FPB-CE safe and clean (environmentally friendly) fire-resistant branch cable. It has characteristics such as low toxicity, low smoke, halogen-free (low halogen) flame-retardant safety and cleanliness, and fire resistance.

5.13 GZR-YJV oxygen barrier (high flame-retardant), high fire-resistant branch cable. It has high flame-retardant properties, exceeding flame-retardant standard Class A.

Main advantages of YDF series prefabricated branch cables

6.1 Excellent power supply safety and reliability

6.1.1 The main cable conductor has no joints, good continuity, reducing fault points.

6.1.2 The branch joints are produced using fully mechanized processes in the factory, greatly reducing quality issues caused by human factors.

6.1.3 The structure of the branch joint is reasonable and made using advanced LYZ technology, with minimal contact resistance, unaffected by thermal expansion and contraction.

6.1.4 Completing the mold cover in a short time avoids the copper core at the joint from being exposed to air for a long time, which can cause oxidation and changes in contact resistance.

6.1.5 The branch joints have strict technical standards and inspection requirements, as well as a rigorous quality assurance system.

6.2 Easy installation, low environmental requirements, convenient construction

6.2.1 Occupies a small building area, conducive to the effective use of building space.

6.2.2 Low environmental requirements and low installation accuracy requirements.

6.2.3 Simple and convenient installation, low technical requirements for installation, short installation period, only 1/10 or 1/20 of the installation time of bus ducts. Low labor intensity.

6.2.4 Due to its small bending radius, it greatly reduces installation difficulty and shrinks space dimensions.

6.3 Excellent seismic resistance, airtightness, waterproofing, and fire resistance

6.3.1 Excellent seismic resistance; generally, mechanical connections of bus duct joints will loosen after the wall vibrates, while the SDF series prefabricated branch cables will not be affected. Especially when passing through building settlement joints, no measures are needed.

6.3.2 Good airtightness and waterproofing, can supply power normally in humid environments, and can be used outdoors and underground, which bus ducts absolutely cannot achieve.

6.3.3 Using "NH" type prefabricated branch cables can maintain normal power supply operation for 90 minutes in case of fire.

6.4 Maintenance-free

6.4.1 After the prefabricated branch cables are installed according to the specified method, the one-time opening rate is high.

6.4.2 The normally operating prefabricated branch cable system does not require any maintenance.

6.5 Can significantly reduce distribution costs

6.5.1 Compared with bus ducts, it can reduce project costs, and the technical and economic indicators are high, with significant overall economic benefits.

6.6 A variety of specifications, flexible selection, arbitrary combination

6.6.1 Main cables range from 10mm2 to 1200mm2, branch cables range from 4mm2 to 300mm2, can be selected in any combination.

6.6.2 There are many types of cables, 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, GNH-YJE, etc., which can be selected according to needs.

6.6.3 Branch joints can be set at any branch position according to the needs of the floor.