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[问题求助 ] 请问各位专家:awm2919是什么样的一种线呀?

P:2007-12-24 12:10:43

1

温度,额定压力,导体尺寸和材料,绝缘层材料和厚度,铠装材料和厚度(如有),对屏蔽或外护套的描述,所需的标志以及对其适用范围的叙述。

里面的芯线与普通的高温线AF-1相比,有什么不同吗?能否用高温线外加屏蔽网来代替?

[awm2919 在 2007-12-24 12:13:04 编辑过]

phase retarder - 相位阻尼器(光环形器装置的) 点赞(0) 投诉

P:2007-12-24 12:50:07

2

UNDERWRITERS LABORATORIES INC.               APPLIANCE WIRING MATERIAL

Subj. 758       Section 2       Page 2919        Issued:  1978-03-22

                                    Revised:  2005-04-18

 

 

Style 2919

 

Low Voltage Computer Cable.

 

 

Rating

 

80°C, 30 Volts.

 

 

 

Insulated Conductors

 

 

No. 40 AWG minimum.  Labeled or complying with Manufacturer’s AWM Procedure having a minimum rating of 80°C, 30 V.

 

 

 

Assembly

 

Consists of two or more conductors, twisted pairs or groups of twisted conductors twisted together.  The conductors or groups of conductors may be laid parallel forming a flat, oval or round cable.  The lay of the conductors is not specified.  A barrier layer and/or fillers are optional.  Manufacturer shall maintain a complete description of each assembly.  May use same or mixed AWG size.

 

 

 

Covering

 

(Optional) - A 6 mil or heavier PVC covering may be extruded over the conductor assembly.

 

 

 

Shield

 

Optional.

 

 

 

Jacket

 

PVC - Class 43

 

                   THICKNESS (MILS)

 

#Dia of cable

under jacket         Minimum            Minimum

in inches            Average          at any point

 

0.425 or less            30                24

0.426 - 0.700            45                36

0.701 - 1.000            60                48

1.000 - 1.500            80                64

1.501 - 2.500           110                88

2.501 and larger        140               112

 

# - Major dia if cable is flat or oval.

 

 

 

Braid

 

Optional.

 

 

 

Standard       

 

Appliance Wiring Material UL 758.

                                (Continued on Page 2919A)
UNDERWRITERS LABORATORIES INC.               APPLIANCE WIRING MATERIAL

Subj. 758       Section 2       Page 2919A       Issued:  1978-03-22

                                    Revised:  2003-02-17

 

 

 

Instructions

to UL

Representative

 

Detailed Examination.

Tensile Strength and Elongation of Jacket.

 

The designation of all Styles of the individual conductors

used making up the cable assembly shall be available, and

the UL Representative’s tag shall indicate if the Style is

labeled or not.  If they are not labeled, the appropriate

Follow-Up Tests shall be conducted.

 

 

 

UL

Counter-Check

Program

 

 

*

 

(4)  Detailed Examination.

(4)  Tensile Strength and Elongation of Jacket.

(4)  Heat Shock on Jacket.

(4)  Deformation on Jacket.

(4)  Cold Bend on Completed Cable.

(12) Cable Flame Test on Completed Cable.

 

If the insulated Styles are not labeled, the appropriate Follow-Up Tests shall be conducted.

 

 

 

Marking

 

General.

 

 

 

Use

 

As internal wiring or external interconnection in Class 2 Circuits of electronic computers and electric business machines.

 

 

 

 

Ic - interior communication内部通信 点赞(0) 投诉

P:2007-12-24 22:54:25

3

电脑周边线,型号很多。

string spinning machine - 绕绳机,绳绕机,绳绕包机 点赞(0) 投诉

P:2007-12-25 11:45:24

4

没有什么特别的,就是一款外观要求比较好的屏蔽线材,外被那么厚,押出很不错的。

gnawing by rats - 鼠咬 点赞(0) 投诉

P:2007-12-25 17:06:55

5

就是RGB 的一种,发泡是28AWG的,有中被。射线为26AWG,通常有6,7,8,9条。外被一般是7.4mm左右.

superfoam insulation - 超泡沫绝缘 点赞(0) 投诉

P:2009-10-30 16:05:40

6

就是低电压电脑线啊

professional engineer - 专业工程师 点赞(0) 投诉

P:2021-07-03 10:23:59

7

RS-485通讯电缆(3x2x24AWG通讯电缆)阻燃 多股铜芯(7/0.20)聚乙烯绝缘聚氯乙烯护套,铝塑复合带+外镀锡铜网编织(密度≥80%)钢丝铠装。

oil/paper dielectric - 油/纸介质 点赞(0) 投诉

7


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