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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

loose buffer jacket - 松包缓冲套(光纤的) (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.

 

MACNET - multi-access communication network多接入通信网络 (0) 投诉

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

3

38+1d对

BSHR - bidirectional self-healing ring双向自愈环 (0) 投诉

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

4

楼主做的是不是IEEE 1284线材?

multi-position pay-off - 多位放线装置,多位置放线装置 (0) 投诉

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

5

对的 你那有这方面的材料么?

polypyrrolone - 聚吡咯酮(可用作航空导线高温绝缘材料的基料) (0) 投诉

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

6

只有惠盈的测试规范



cellular PE-insulated wire - 泡沫聚乙烯绝缘线 (0) 投诉

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

7

我现在是想做那种线

Mating Force - 插入力(日) (0) 投诉

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

8

继续征求 UL2900线的结构

irradiation cross-linking - 辐照交联 (0) 投诉

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

9

yun,什么都没有呢,你也学习

impregnating tank - 浸渍罐,浸渍槽 (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

let-off apparatus - 放线装置 (0) 投诉

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

11

2L不是给答案了吗

combined drawing line - 综合拉丝生产线 (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

rupture - 破裂,断线;绝缘击穿 (0) 投诉

12


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