计算机电缆适用于额定电压500V及以下对于防干扰性要求较高的电子计算机和自动化连接用电缆。适合电力、冶金、石化等行业电子计算机为主的自动控制系统、计算机集散控制系统、自动化控制系统作控制线以及检测用仪器仪表用计算机电缆。计算机电缆屏蔽层根据不同场合分别采用：对绞组合屏蔽、对绞组成电缆的总屏蔽、对绞组合屏蔽后总屏蔽等方法。

详细介绍

描述

执行标准：Q/SX05-2020（等效采用英国BS5308-86）

用途：适用于发电、冶金、石化等工矿企业集散系统、电子计算机系统、自动化系统的信号传输及检测仪器、仪表等连接用多对屏蔽电缆。

使用特性：

工作温度：一般型号不超过70℃，

型号后带105的不超过105℃

环境温度：固定敷设：-40℃ 非固定敷设：-15℃

额定电压U₀/U：300/500V

最小弯曲半径：无铠装层电缆应不小于电缆外径的8倍

带铠装层的电缆不小于电缆外径的16倍

主要技术指数

性能项目 Property		单位 Unit	技术指标 Technical Indices
			聚乙烯绝缘 PE Insulation		聚氯乙烯绝缘 PVC Insulation
20℃时绝缘电阻 ≥ Insulation resistance at 20℃ ≥	任一线对导体间 Between conductors of any pair	MΩ· km	5000		25
工作电容（1kHz） ≤ Working capacitance (1kHz) ≤	截面	pF/m	总屏	分屏	200
	Sec.area			分（总）
	0.5mm²		75	90
	0.75mm²		75	90
	1.0mm²		75	90
	1.5mm²		85	98
	2.5mm²		95	115
电容不平衡(1KHz) ≤ Capacitance unbalance (1KHz) ≤		pF/m	1		–
电感电阻比 ≤ Inductance resistance Ratio ≤	截面	μH/Ω
	Sec.area		20
	0.5mm²		25
	0.75mm²		25
	1.0mm²		40
	1.5mm²		50
	2.5mm²

性能项目 Property	单位 Unit	技术指标 Technical Indices
性能项目 Property	单位 Unit	聚乙烯绝缘 PE Insulation	聚氯乙烯绝缘 PVC Insulation
屏蔽抑制系数≤ Shield rejection factor≤		0.01	0.01
试验电压 Test voltage	V/1min	1000	1000
阻燃性 Flame retardant property		符合GB/T18380要求 Satisfy GB/T18380	同左 Same as left

导体结构及直流电阻

标称截面 Nom.Cross-section	根数/直径 Number/wire Dia. mm			20°C时直流电阻 DC.Resist.at 20℃ ≤Ω/km
mm	A	B	R	A、B		R
mm	A	B	R	不镀锡	镀锡	不镀锡	镀锡
0.5	1/0.8	7/0.3	16/0.2	36.8	37.6	39.7	40.9
0.75	1/0.95	7/0.37	24/0.2	25.0	25.3	26.5	27.2
1.0	1/1.13	7/0.43	32/0.2	18.4	18.6	19.9	20.4
1.5	1/1.38	7/0.52	30/0.25	12.4	12.6	13.6	14.0
2.5	1/1.78	7/0.68	49/0.25	7.56	7.71	8.14	8.37

blank 型号及名称

电子计算机用多对屏蔽控制电缆型号及名称

序号 No.	型号 Type	产品名称 Names of Product	备注 Remark
1	DJYPV	铜芯聚乙烯绝缘聚氯乙烯护套铜丝编织分屏蔽电子讦算机电缆 Computer cable with Cu conductor，PE insulation and PVC sheath, Cu-wire braided individual shield.	聚乙烯绝缘聚氯乙烯护套计算机缆有优良的电性能工作电容小绝缘电阻高 PE insulated and PVC sheathed computer cables have excellent electrical characteristics, small working capacitance and high insulation resistance
2	DJYPVP	铜芯聚乙烯绝缘聚氯乙烯护套铜丝编织分屏蔽及总屏蔽电子讦算机电缆 Computer cable with Cu conductor，PE insulation and PVC sheath, Cu-wire braided individual and collective shield.
3	DJYVP	铜芯聚乙烯绝缘聚氯乙烯护套铜丝编织总屏蔽电子讦算机电缆 Computer cable with Cu conductor，PE insulation and PVC sheath, Cu-wire braided collective shield.
4	DJYP2V	铜芯聚乙烯绝缘聚氯乙烯护套铜/塑复合膜分屏蔽电子计算机电缆 Computer cable with Cu conductor, PE insulation and PVC sheath, Cu/plastic composite film individual shield.
5	DJYP2VP2	铜芯聚乙烯绝缘聚氯乙烯护套铜/塑复合膜分屏蔽及总屏蔽电子计算机电缆 Computer cable with Cu conductor, PE insulation and PVC sheath, Cu/plastic composite film individual and collective shield.
6	DJYVP2	铜芯聚乙烯绝缘聚氯乙烯护套铜/塑复合膜总屏蔽电子计算机电缆 Computer cable with Cu conductor, PE insulation and PVC sheath, Cu/plastic composite film collective shield.
7	DJYP3V	铜芯聚乙烯绝缘聚氯乙烯护套铝/塑复合膜分屏蔽电子计算机电缆 Computer cable with Cu conductor, PE insulation and PVC sheath, Al/plastic composite film individual shield.
8	DJYP3VP3	铜芯聚乙烯绝缘聚氯乙烯护套铝/塑复合膜分屏蔽及总屏蔽电子计算机电缆 Computer cable with Cu conductor, PE insulation and PVC sheath, Al/plastic composite film individual and collective shield.
9	DJYVP3	铜芯聚乙烯绝缘聚氯乙烯护套铝/塑复合膜总屏蔽电子计算机电缆 Computer cable with Cu conductor, PE insulation and PVC sheath, Al/plastic composite film collective shield.
10	DJYPV22	铜芯聚乙烯绝缘聚氯乙烯护套铜丝编织分屏蔽钢带铠装电子讦算机电缆 Computer cable with Cu conductor，PE insulation and PVC sheath, Cu-wire braided individual shield，ａnd steel tape armoring.
11	DJYPVP22	铜芯聚乙烯绝缘聚氯乙烯护套铜丝编织分屏蔽及总屏蔽钢带铠装电子讦算机电缆 Computer cable with Cu conductor，PE insulation and PVC sheath, Cu-wire braided individual and collective shield，ａnd steel tape armoring.
12	DJYVP22	铜芯聚乙烯绝缘聚氯乙烯护套铜丝编织总屏蔽钢带铠装电子讦算机电缆 Computer cable with Cu conductor，PE insulation and PVC sheath, Cu-wire braided collective shield，ａnd steel tape armoring.
13	DJYP2V22	铜芯聚乙烯绝缘聚氯乙烯护套铜/塑复合膜分屏蔽钢带铠装电子计算机电缆 Computer cable with Cu conductor, PE insulation and PVC sheath, Cu/plastic composite film individual shield，ａnd steel tape armoring.
14	DJYP2VP2-22	铜芯聚乙烯绝缘聚氯乙烯护套铜/塑复合膜分屏蔽及总屏蔽钢带铠装电子计算机电缆 Computer cable with Cu conductor, PE insulation and PVC sheath, Cu/plastic composite film individual and collective shield，ａnd steel tape armoring.
15	DJYVP2-22	铜芯聚乙烯绝缘聚氯乙烯护套铜/塑复合膜总屏蔽钢带铠装电子计算机电缆 Computer cable with Cu conductor, PE insulation and PVC sheath, Cu/plastic composite film collective shield，ａnd steel tape armoring.
16	DJYP3V22	铜芯聚乙烯绝缘聚氯乙烯护套铝/塑复合膜分屏蔽钢带铠装电子计算机电缆 Computer cable with Cu conductor, PE insulation and PVC sheath, Al/plastic composite film individual shield，ａnd steel tape armoring.
17	DJYP3VP3-22	铜芯聚乙烯绝缘聚氯乙烯护套铝/塑复合膜分屏蔽及总屏蔽钢带铠装电子计算机电缆 Computer cable with Cu conductor, PE insulation and PVC sheath, Al/plastic composite film individual and collective shield，ａnd steel tape armoring.
18	DJYVP3-22	铜芯聚乙烯绝缘聚氯乙烯护套铝/塑复合膜总屏蔽钢带铠装电子计算机电缆 Computer cable with Cu conductor, PE insulation and PVC sheath, Al/plastic composite film collective shield，ａnd steel tape armoring.