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UL2464老化测试问题

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1#
发表于 2012-2-1 10:47:37 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
请问有没有人知道,UL2464的芯线要不要做老化后测试?标准中好像没有要求.
2#
发表于 2012-2-1 10:47:43 | 只看该作者
我也想知道
3#
发表于 2012-2-1 10:47:49 | 只看该作者
楼主是在哪个标准中看到芯线不用做老化的这一条的?
据我所知,2464的芯线应该用1007或1061的线,也就是说你做芯线用的是1007,就应按1007的标准要求做芯线老化,若用1061,则应按SRPVC的要求做老化。附STYLE PAGE给你看一下。
UNDERWRITERS LABORATORIES INC. APPLIANCE WIRING MATERIAL
Subj. 758 Section 2 Page 2464 Issued: 1968-05-02
Revised: 2003-05-02

Style 2464 PVC Jacketed Cable.
______________________________________________________________________________

Rating 80°C, 300 V.
______________________________________________________________________________

Insulated Labeled or complying with manufacturer's AWM Procedure
Conductors having a minimum rating of 80°C and 300 V.
______________________________________________________________________________

Assembly Two or more singles, twisted pairs of groups of twisted
singles twisted together or singles or groups of singles
may be laid parallel to form flat, oval or round cable.
Lay not specified. Barrier layer and/or fillers optional.
Manufacturer shall maintain a complete description of each
assembly. May use same or mixed AWG size.
______________________________________________________________________________

*Covering (Optional.)
______________________________________________________________________________

Shield Optional.
______________________________________________________________________________

Jacket PVC - Class 43

THICKNESS OF PVC JACKET (mils)

#Dia. of Cable Minimum
Under Jacket Minimum at any
in Inches Average point

0.700 or less 30 24
0.701 - 1.000 45 36
1.001 - 1.500 60 48
1.501 - 2.500 80 64
2.501 - 4.000 110 88
4.001 or larger 140 112

# Major diameter if cable is flat or oval.
______________________________________________________________________________

Braid Optional.
______________________________________________________________________________

Standard Appliance Wiring Material UL 758.
______________________________________________________________________________
(Continued on Page 2464A)

UNDERWRITERS LABORATORIES INC. APPLIANCE WIRING MATERIAL
Subj. 758 Section 2 Page 2464A Issued: 1968-05-02
Revised: 2003-05-02

Instructions Detailed Examination of the cable assembly and jacket.
to UL Physical Properties of Jacket.
Representative Dielectric Strength Test, 1500 Volts (shielded cable only).

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) Physical Properties of Jacket.
Program (4) Heat Shock on Jacket.
(4) Cold Bend on Completed Cable.
(4) Deformation on Jacket, Class 43.
(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 Internal wiring or external interconnection of electronic
equipment (such as desk-type calculators, dictating
machines, or x-ray equipment).
4#
 楼主| 发表于 2012-2-1 10:47:55 | 只看该作者
楼上的,如果芯线用1061是否只要做老化前测试,而不用做老化后测试?
1,我在UL1061中看到这样一句话:Instructionsto ULRepresentative Detailed Examination.Physical Properties, Unaged. Spark Test.意思是不是只要做老化前试验?
2,我在UL2464标准中看到If the insulated styles are not labeled, the appropriate Follow-Up Tests shall be conducted.我不明白其中的FOLLOW-UP TEST主要是指哪些试验?是不是如果芯线印上1061的印字,就可以不用按FOLLOW-UP TEST去做试验?FOLLOW-UP TEST是否包括老化后测试?
5#
 楼主| 发表于 2012-2-1 10:48:02 | 只看该作者
在UL2464标准中还有这样一句话"Counter-Check (4) Physical Properties of Jacket."是不是只是对外被要做物理性能测试,而没有对芯线有要求?
6#
发表于 2012-2-1 10:48:08 | 只看该作者
原文 :
在UL2464标准中还有这样一句话"Counter-Check (4) Physical Properties of Jacket."是不是只是对外被要做物理性能测试,而没有对芯线有要求?
看来LZ对标准的理解有些片面。上述引用的STYLE是2464,当然物理性能实验只会写针对JACKET。刚才楼上已经解释了,芯线的规格及标准要看你选用的芯线STYLE,比如你选的是1007,则对绝缘的要求要去看1007的具体内容。
总之一句话,UL中所有的塑胶材料都有老化的要求,并且都可以找到具体的条件
7#
发表于 2012-2-1 10:48:14 | 只看该作者
都要做
8#
发表于 2012-2-1 10:48:21 | 只看该作者
有个问题,为什么一定要用1007或1061的芯线啊?
9#
发表于 2012-2-1 10:48:27 | 只看该作者
原文 :
有个问题,为什么一定要用1007或1061的芯线啊?
UL2464的芯线需要与其额定温度和额定电压一致的安规
10#
发表于 2012-2-1 10:48:33 | 只看该作者
那谁会用1061的线啊?要求那么高
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