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[问题求助] 急求ul2990的性能参数,导线结构

P:2007-10-19 14:16:57

1

在线等答案,很急,谢谢大家了

gas cure - 气体硫化 (0) 投诉

P:2007-10-19 14:29:56

2

UNDERWRITERS LABORATORIES INC.              APPLIANCE WIRING MATERIAL

Subj. 758     Section 2     Page 2990        Issued:  1979-04-11
                                Revised:  2003-03-20

 

Style 2990    Electronic Cable.

______________________________________________________________________________

 

Rating     80°C, 30 V.

______________________________________________________________________________

 

Insulated     No. 40 AWG minimum.  Labeled or complying with

Conductors    Manufacturer's AWM Procedure having a minimum rating of

           80°C.

______________________________________________________________________________

 

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. ______________________________________________________________________________

 

Covering      (Optional)  A 6 mil or heavier PVC covering may extruded

           over the conductor assembly.

______________________________________________________________________________

 

Shield     Optional.

______________________________________________________________________________

 

Jacket     PVC - Class 43

 

                     THICKNESS (mils)

 

             #Dia. of Cable                 Minimum

              Under Jacket       Minimum        at any

               in Inches          Average         point 

 

              0.700 or less      30         24

 

           # - Major dia if cable is flat or oval.

______________________________________________________________________________

                            (Continued on Page 2990A)


 

UNDERWRITERS LABORATORIES INC.              APPLIANCE WIRING MATERIAL

Subj. 758     Section 2     Page 2990A       Issued:  1979-04-11
                                Revised:  2003-03-20

 

Standard      Appliance Wiring Material UL 758.

______________________________________________________________________________

 

Instructions  Detailed Examination.

to UL

Representative    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         (4)  Detailed Examination.

Counter-Check (4)  Flexing.

*Program      (12) Cable Flame Test on Completed Cable.

 

           If the insulated Styles are not labeled, the appropriate

           Follow-Up Tests shall be conducted.

______________________________________________________________________________

 

Marking       General.

 

           "Low voltage computer cable" may be printed on jacket

           surface.

______________________________________________________________________________

 

Use       Internal Wiring or External Interconnection of Electronic

           Equipment, class 2 circuits only.

 

centering - 中心调整,对准中心,定心,,定中心 (0) 投诉

P:2007-10-19 14:40:29

3

38+1d对

coated cable - 涂层电缆 (0) 投诉

P:2007-10-19 15:07:56

4

楼主做的是不是IEEE 1284线材?

heat shock - 热冲击,加热卷绕测试。热冲击。试验材料稳定方法之一,将材料在某一特定时间内捲绕于规定之圆棒上,暴露于高温中,不得有龟裂现象发生。 (0) 投诉

P:2007-10-19 16:38:31

5

对的 你那有这方面的材料么?

terminal lug - 端子,接线端子 (0) 投诉

P:2007-10-19 18:16:16

6

只有惠盈的测试规范



turbulence chamber - 粉料混合箱(挤出设备用) (0) 投诉

P:2007-10-19 18:34:47

7

我现在是想做那种线

NEMA - National Electrical Manufacturers' Association全国电气制造商协会<美> (0) 投诉

P:2007-10-21 16:31:21

8

继续征求 UL2900线的结构

image quality - 图像质量 (0) 投诉

P:2007-10-22 09:25:59

9

yun,什么都没有呢,你也学习

dielectric dissipation factor - 介质损失角正切(tgδ);介质耗损因数,电介质耗损因数 (0) 投诉

P:2007-10-22 10:19:38

10

谢谢tanhy,请问那位有38P+1P的结构及电气性能。急需

Stalpeth - 钢-铝-聚乙烯(护层结构) (0) 投诉

P:2007-10-22 10:20:31

11

2L不是给答案了吗

alummium wire - 铝线 (0) 投诉

P:2007-10-23 12:41:12

12

继续征求ul2900 38+1P 线的物理结构和电气性能,很需要

extrudability - 可挤出性,可挤压性 (0) 投诉

12


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