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执行标准Executive standard
本产品按照GB/9330、GB/T19666标准生产制造。
This product is manufactured in accordance with GB/9330 and GB/T19666 standards.
需要时，阻燃试验要求符合GB/T18380（IEC60332）的规定。
When necessary, the flame retardant test requirements shall meet the requirements of GB/T18380 (IEC60332).
需要时，耐火试验要求符合GB/R19216（IEC60331）的规定。
When necessary, the fire resistance test requirements shall meet the requirements of GB/R19216 (IEC60331).
需要时，燃烧性能等级（A、B1、B2、B3）符合GB31247的规定。
When necessary, the combustion performance level (A, B1, B2, B3) meets the requirements of GB31247.
需要时，火焰蔓延、热释放和产烟特性试验要求符合GB/T31248的规定。
When necessary, the flame spread, heat release and smoke generation characteristics test requirements meet the requirements of GB/T31248.
适用范围Scope of application
本产品适用于交流额定电压（U0/U）450/750V及一次啊的电器仪表、配电装置的信号传输、控制和测量系统。可广泛应用于冶金、电力、石油、化工等各种领域。
This product is suitable for the signal transmission, control and measurement system of electrical instruments and power distribution devices with AC rated voltage (U0/U) 450/750V and one-time. It can be widely used in various fields such as metallurgy, electric power, petroleum and chemical industry.
使用特性Use characteristics
1、电缆额定电压U0/U：450/750V
Rated cable voltage U0/U: 450/750V
U0-电缆设计用的导体对地域金属屏蔽之间的额定工频电压；
U0-The rated power frequency voltage between the conductor used in the cable design and the regional metal shield
U-电缆设计用的导体间的额定工频电压；
U- rated power frequency voltage between conductors used in cable design;
2、电缆正常运行时导体很高工作温度：交联聚乙烯绝缘为90℃；聚氯乙烯绝缘为70℃。
The maximum working temperature of the conductor during the normal operation of the cable: 90°C for cross-linked polyethylene insulation; 70°C for polyvinyl chloride insulation.
3、电缆短路时导体很高温度：交联聚乙烯绝缘为250℃；聚氯乙烯绝缘为160℃（短路很长持续时间为5秒）。
The maximum temperature of the conductor when the cable is short-circuited: 250°C for cross-linked polyethylene insulation; 160°C for polyvinyl chloride insulation (the longest short-circuit duration is 5 seconds).
4、电缆安装时很小弯曲半径：
Minimum bending radius during cable installation：
有铠装或绕包屏蔽结构的电缆应不小于电缆外径的12倍；
Cables with armored or wrapped shielding structure should not be less than 12 times the outer diameter of the cable;
其余结构电缆应不小于电缆外径的6倍。
Other structural cables should not be less than 6 times the outer diameter of the cable.
5、电缆的很低允许敷设温度：敷设时电缆温度不低于0℃，环境温度低于0℃时，应对电缆进行预热。
The minimum allowable laying temperature of the cable: the temperature of the cable shall not be lower than 0℃ during laying, and the cable should be preheated when the ambient temperature is lower than 0℃.
6、电缆绝缘电阻：很高额定温度时。体积电阻率r不低于1012Ω.cm；绝缘电阻常数Ki不小于36.7MΩ.km。Cable insulation resistance: at the highest rated temperature. The volume resistivity r is not less than 1012Ω.cm; the insulation resistance constant Ki is not less than 36.7MΩ.km.
主要实验项目及指标Main experimental items and indicators
1、20℃时导电线芯很大直流电阻
Maximum DC resistance of conductive core at 20℃
2、交流电压试验：A.C voltage test
额定电压450/750V成品电缆应能经受工频3000V电压试验5min不击穿。
The finished cable with rated voltage of 450/750V should be able to withstａnd the power frequency 3000V voltage test for 5 minutes without breakdown.
电缆结构图Cable Drawing
1.导体conductor
2.交联聚乙烯绝缘XLPE insulation
3.聚酯带Polyester tape
4.铜带绕包屏蔽Copper tape wrapped shield
5.内衬层Inner lining
6.铠装层Armor layer
7.护套层Sheath
