地址:北京市丰台
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手机:13911696698
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标准:YD/T322-1996.
用途:HYA实心绝缘非填充型电缆是电话交换区和中继干线设计的电话电缆,主要用于管道敷设。
产品电气特性
项目Item | 单位Unit | 指标Index | ||||||
单根导线直流电阻Single conductor DC resistance +20℃ |
Ω/km | 单丝直径Single dia. mm | 0.32 | 0.40 | 0.50 | 0.60 | 0.80 | |
最大值Max. value | 236 | 148 | 95 | 65.8 | 36.6 | |||
平均值 Average value≤ | 2.5 | 1.5 | 1.5 | 1.5 | 1.5 | |||
每根绝缘导线与其余接地及屏蔽的绝缘导线间的绝缘电阻+20℃ DCP100-500V | MΩ/km | 最小值Min. value | 10×103 | |||||
绝缘电气强度Insulation electric strength DC | kV | 3s | 芯线之间Between the cores 2.0,芯线与屏蔽之间Between the core and shield 6.0 | |||||
1min | 芯线之间Between the cores 1.0,芯线于屏蔽之间Between the core and shield3.0 | |||||||
工作电容Capacitance | nF/km | 电缆线对数Pairs of cable | 10 | >10 | ||||
最大值Max. value | 58.0 | 57.0 | ||||||
平均值不大于average value less than | ≤52.0±4.0 | ≤52.0±2.0 | ||||||
电容不平衡CapacitanceUnbalance 线对与地之间电容不平衡Capacitance Unbalance between pair & ground | pF/km | 电缆线对数Pairs of cable | 10 | >10 | ||||
最大值Min. value | 250(200) | 250(200) | ||||||
最大值Min. value | 2630 | 2630 | ||||||
固有衰减Inherent attenuation | dB/km | 单丝直径Single dia. mm | 0.32 | 0.40 | 0.50 | 0.60 | 0.80 | |
平均值 Average value≤ | 16.8 | 12.1 | 9.0 | 7.2 | 5.7 | |||
平均值 Average value≤ | 33.5 | 27.3 | 22.5 | 18.5 | 13.7 | |||
近端串音衰减 Proximal end crosstalk attenuation | dB | 10对电缆内线对间的全部组合All combination of 10pairs extension cable | 不小于53 | |||||
12对、13对子单位内线对间的全部组合All combination of 12/13pairs extension units | 不小于54 | |||||||
20对、30对电缆或基本单位内线对间的全部组合All combination of 20/30pairs extension units & cables | 不小于58 | |||||||
相邻12对、13对子单位间线对的全部组合All combination of adjacent 12/13pairs extension units | 不小于63 | |||||||
相邻基本单位间线对的全部组合All pairs combination of adjacent pairs on the base unit | 不小于64 | |||||||
超单位内两个相对基本单位和子单位或子单位间线对的全部组合All pairs combinations of two opposing base units in the extra unit & subunits or between subunits | 不小于70 | |||||||
不同超单位内基本单位或子单位间线对的全部组合 | 不小于79 | |||||||
近端串音防卫度 Proximal end crosstalk protection ratio | dB/km | 任意线对组合最小值Min. value of any combination of pairs 58 | ||||||
功率平均值不小于Average value of capacity not less than 69 |