Flame retardant B1 grade cable with rated voltage of 0.6/1V and below has a rated voltage of 0.6/1kV. The cable installation and laying temperature is -15℃. The implementation standards are GB/T12706.1-2020, GB/T19666-2019, GB31247-2014, etc.
AC rated voltage (U0/U): 0.6/1kV
Operating temperature: The long-term allowable operating temperature of cross-linked polyethylene
insulated conductors shall not exceed +90°C
Minimum ambient temperature: -15℃
Product type: YJY and YJY23
Implementation standard:Mainly based on standards such as GB/T 12706.1-2020 (power cable), GB
31247-2014 (combustion performance), and GB/T 19666-2019 (flame retardant and fire resistant).
| Model | Number of cores | Nominal cross section |
| WDZB1(N)-YJY | 1 core | 1.5-630 |
| 2-5 cores, 2+1 cores, 3+1 cores, 4+1 cores, 3+2 cores | 1.5-400 | |
| WDZB1(N)-YJY23 | 1 core | 10-630 |
| 2-5 cores, 2+1 cores, 3+1 cores, 4+1 cores, 3+2 cores | 1.5-400 |
B1 cables with rated voltage of 0.6/1V and below are mainly suitable for distribution lines of emergency
systems in places with large flow of people and relatively closed environment, such as subways,
hospitals, large shopping malls, and densely populated residential areas; they are divided into armored
cables and unarmored cables according to product structure.
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