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[问题求助] ul 20895 材料

P:2008-12-11 17:32:21

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ul 20895 绝缘和护套材料是什么?

shaver - 剥皮机 (0) 投诉

P:2008-12-12 21:53:19

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UNDERWRITERS LABORATORIESAPPLIANCE WIRING MATERIAL
Subj.758Section 2Page 20895Issued:1995-08-11
Revised:2008-05-27
Style 20895Jacketed Cable.

Rating90 deg C, 1000 Vac, Cable flame.
Conductor40 AWG min - Material not specified.
InsulationLabeled or complies with manufacturer's AWM Procedure.
AssemblyTwo or more twisted singles or groups of twisted singles twisted together. Lay not specified. Barrier layer over cable core or individual singles and/or fillers optional, manufacturer shall maintain a complete description of each assembly.
ShieldOptional. May be over one or more of the insulated conductors or applied over the assembly.
JacketPUR - See Facing Page for Compound
dia in inches of 0.425 or less50 mils min average40 mils minimum at any point
0.426-0.700 dia66 avg52 min
0.701-1.500 dia88 avg70 min
1.501-2.500 dia120 avg96 min
2.501 dia and larger154 avg124 min
StandardAppliance Wiring Material UL 758.
MarkingGeneral.
UseAs internal wiring or external interconnection of electronic equipment (such as computers and business machines).

wire mesh - 铁丝网 (0) 投诉

P:2008-12-13 10:56:18

3

我有这个活页,也了解了一些情况,绝缘材料中没有具体规定那种材料,只是说经过Labeled 或符合AWM要求的材料,像交联聚乙烯等材料,我手中有一段国外的样品,分析下来不是XLPE,很薄,35平方的绝缘厚度只有0.8mm,而且表面很滑,亮,硬、是氟制品,

护套是聚氨酯吗?

导体是特软的0.07的,我们怎么做呢?设备?

望高人指点!!!

optical fiber facing - 光纤端面加工 (0) 投诉

P:2008-12-13 13:22:45

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个人感觉绝缘不太可能是氟塑料,因为成本太高,而且要求耐温90度,氟塑料可达200度,有可能是聚酯料,护套是聚氨酯.

overhead contact wire - 电车线,滑接馈电线,架空触线 (0) 投诉

4


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