First. product features and uses
Suitable for branch cables with AC rated voltage U0/U 0.6/1kV for power transmission, electrical or lighting systems. The product has stable and safe power supply performance, convenient installation and construction, short cycle, space saving and no maintenance. The product also has superior seismic performance, air tightness, waterproof and fire resistance. As an emerging product, branch cable is widely used in many national economic infrastructure industries such as residential buildings, high-rise office buildings, subways, and airports.
The low-smoke and halogen-free branch cable has the characteristics of environmental protection, low smoke and non-toxicity, and the scope of use is spreading.
Second. product implementation standards
Q/HHTZH010
Third. the use of characteristics
1. The rated voltage is 0.6/1kV
2. the maximum allowable operating temperature of the cable conductor: PVC insulation 70°C;
XLPE insulation 90°C;
Low-smoke halogen-free flame retardant polyolefin 70°C;
Low-smoke, halogen-free, flame-retardant crosslinked polyolefin at 90°C and 125°C
3. The minimum laying temperature of the cable is 0°C, and it should be preheated below 0°C.
4. The cable is recommended to allow the bending radius to be no less than 12 times the outer diameter of the cable.
Fourth. the basic model and name
model | product name |
FZD-YJV | Copper core XLPE insulated PVC sheathed branch cable |
FZD-VV | Copper core PVC insulated PVC sheathed branch cable |
FZD-ZR-YJV | Copper core XLPE insulated flame-retardant PVC sheathed branch cable |
FZD-ZR-VV | Copper core PVC insulated flame retardant PVC sheathed branch cable |
FZD-NH-YJV | Copper core XLPE insulated flame-retardant PVC sheathed fire-resistant branch cable |
FZD-NH-VV | Cu core PVC insulated flame-retardant PVC sheathed fire-resistant branch cable |
FZD-VDVD | Copper core PVC insulated and sheathed flame retardant low smoke low halogen branch cable |
FZD-YDYD | Copper core low-smoke halogen-free polyolefin insulated and sheathed low-smoke halogen-free branch cable |
Note: 1. The main cable of the branch cable and the insulating material of the branch cable are the same, and the branch connectors are made of the same material as the cable insulation material.
2. The copper wire in the conductor core can be tinned, the flame retardant cable type is added with ZR, and the soft structure cable is added with R.。
V. Code name and meaning
Code | Code meaning |
FZD | Serial code - branch cable |
Flame retardant properties |
|
- | Non flame retardant |
ZR | Flame retardant: divided into three grades A, B and C |
NH | Fire resistant cable |
insulation |
|
Y | XLPE |
V | Polyvinyl chloride |
YD | Flame retardant low-smoke halogen-free polyolefin |
jacket |
|
V | Polyvinyl chloride |
VD | Low-smoke low-halogen flame retardant PVC |
YD | Low-smoke halogen-free flame retardant polyolefin |
Six. main technical indicators
1. The DC resistance of the finished cable conductor (in accordance with the provisions of GB/T3956) is specified in Table 1 of Appendix A;
2. The technical indicators are as follows:
Insulation resistance | Not less than 200MΩ·km |
Finished pressure test | 3.5kV/5min does not breakdown |
Airtight and waterproof | Branch joint water immersion, insulation and pressure resistance meet the requirements |
Contact resistance | The contact resistance of the contact resistance and the branch line of the same length is not more than 1.2 |
Joint short circuit strength | The contact resistance change rate after short circuit is not more than 0.2 |
Flame retardant and fire resistant properties | Meet the requirements of GB/T19666-2005 |
Product structure diagram