0.6/1kV flame retardant B2 class power cable
0.6/1kV flame retardant B2 class power cable is applies for densely populated places, transmission and distribution lines, power transmission
Application
This product is suitable for ac rated voltage 0.6/1kV and below in densely populated places, transmission and distribution lines, power transmission, with high flame retardant, low smoke, halogen-free and other characteristics, large load flow, excellent anti-aging performance, long service life, this product has been widely used in metallurgy, electric power, petrochemical, large construction, automobile manufacturing and other industries.
Executive Standard
Q/WHY 92、GB/T 31247-2014
Service Property
1. In continuous operation, the highest operating temperature of the conductor is 90℃, and the laying temperature should not be lower than 0℃.
2. Rated voltage of cable 0.6/1kV.
3. Allowable bending radius: single core cable should not be less than 10 times of the cable diameter, multi core cable should not be less than 15 times of the cable diameter.
Type & Description
| Type | Description |
|---|---|
| WDZB2-YJY | Copper core crosslinked polyethylene insulated low smoke halogen-free polyolefin sheathed flame retardant class 2 power cable |
| WDZB2-YJY23 | Copper core crosslinked polyethylene insulated galvanized steel tape armored low smoke halogen-free polyolefin sheathed flame retardant class 2 power cable |
| WDZB2-YJY33 | Copper core crosslinked polyethylene insulated galvanized steel wire armored low smoke halogen-free polyolefin sheathed flame retardant class 2 power cable |
Code & Meaning
| Item | Code | Description |
|---|---|---|
| Series of codes | / | Omitted |
| Burning characteristics | B2 | Flame retardant class 2 cable |
| N | Fire-resistant | |
| WD | Low smoke | |
| Z | Single flame retardant | |
| Conductor | / | Copper conductor (omitted) |
| L | Aluminum conductor | |
| LH | Aluminum alloy conductor | |
| R | Soft structure | |
| Insulation | YJ | Crosslinked polyethylene insulation |
| Sheath and inner sheath | Y | Low smoke halogen-free polyolefin sheath |
| Armor | 2 | Double steel tape armmor |
| 3 | Fine steel armor | |
| 4 | Thick steel armor | |
| 6 | Non-magnetic metal tape armor | |
| 7 | Non-magnetic metal wire armor | |
| Outer Sheath | 3 | Low smoke halogen-free polyolefin sheath |
Main Technical Indicators
1. DC resistance of conductor at 20℃ shall conform to GB/T3956-2008.
2. The power-frequency AC voltage test is 3.5kV/5min without breakdown.
3. The highest operating temperature of the conductor is 90℃.
Combustion Performance Index
| Project | Index |
|---|---|
| Flame spread | FS≤2.5m |
| Peak heat release rate | HRR (peak)≤60kW |
| Total heat release within 1200s by fire | THR1200≤30MJ |
| Combustion rate exponential | FIGRA≤300W/s |
| Peak smoke rate | SPR(peak)≤1.5㎡/s |
| Total amount of smoke produced within 1200s by fire | TSP1200≤400MJ |
| Smoke density(minimum transmittance) | It≥20% |
| Vertical fame spread | H≤425mm |
| No combustion drips/particles within 1200s | No burning drips/particles |
| Smoke toxicity | ZA2 |
| Electrical conductivity | ≤2.5 μ s/mm |
| PH | ≥4.3 |
Cable Structure Drawing
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