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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

scrape-resistance test machine - 耐刮试验机 (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.

 

trapezoidal copper bus-bar - 梯形铜排 (0) 投诉

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

3

38+1d对

SC - Silver-Plated Copper 镀银铜,镀银铜丝Silver-covered copper (0) 投诉

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

4

楼主做的是不是IEEE 1284线材?

pinch roll - 压辊 (0) 投诉

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

5

对的 你那有这方面的材料么?

CEF - cable entrance facility电缆进局设备(相当于CEE) (0) 投诉

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

6

只有惠盈的测试规范



cable impregnating compound cleanliness - 电缆浸渍剂洁净度 (0) 投诉

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

7

我现在是想做那种线

ITO - internal thermal oxidation-process内部加热氧化法,改良的化学汽相沉积法 (0) 投诉

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

8

继续征求 UL2900线的结构

copper passivator - 铜钝化剂 (0) 投诉

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

9

yun,什么都没有呢,你也学习

optical fiber cable for installation in duct - 管道内敷设式光缆 (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

fracture of roll - 轧辊表面的裂缝,轧辊的掉角 (0) 投诉

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

11

2L不是给答案了吗

SALCU - semi-automatic line control unit半自动生产线控制装置 (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

local line - 市内线路,局用线路 (0) 投诉

12


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