15
2022
-
02
Nuclear grade cable
Nuclear grade cable
Scope of application·
This product is applicable to the control and signal connection cables used in the control system network of nuclear power plant with rated voltage uo / U of 0.6/1kv.
·The allowable long-term working temperature of the cable conductor is 90 ℃, and the maximum temperature of the cable conductor in case of short circuit shall not exceed 250 ℃, and the duration shall not exceed 5 seconds.
·The ambient temperature during cable laying shall not be lower than 0 ℃.
·The allowable bending radius during cable laying is:
-The cable without armor shall not be less than 6 times of the cable diameter
-The cable with armor or copper tape shielding result shall not be less than 12 times of the cable diameter
-The diameter of the shielded cable shall not be less than 6 times that of the flexible cable.
·When the long-term allowable working temperature of the conductor is not greater than 90 ℃, the identification life of the cable shall not be less than 40 years.
·The finished cable shall comply with GB / t18380 3 class a bunched combustion test requirements specified in the standard.
·Smoke density of finished cable: the light transmittance shall not be less than 70%.
·Radiation resistance: 25 × 104Gy
·Halogen free: when non-metallic materials are burning, the acidity of the escaping gas (expressed by pH value) shall be greater than 4.3; Conductivity not greater than 10 μ S/mm。
Latest news
2022-02-15
2022-02-15
2022-02-15
2022-02-15
2022-02-15
2022-02-14
2022-02-14
2022-02-14
2022-02-14
No.2555 longhu Avenue, Industrial East District, Xindu District, Chengdu city
Taobao
Trill:mingdaxl
Linl：Mingda group
Copyright © 2022 Sichuan Mingda Wire & Cable Technology Co., LTD
蜀ICP备2022000899号 Website：300.cn