标题: 外壳材料黄卡上的RTI [打印本页] 作者: 茶馆 时间: 2011-5-6 10:49 标题: 外壳材料黄卡上的RTI 外壳材料黄卡上的RTI是指什么? RTI 又分ELEC,IMP,STR ,这些有是指什么?作者: 包子 时间: 2011-5-6 11:01
查看塑胶材料认证 QMFZ2 Guide info ' G. o: p9 B6 V' B3 u3 |
Thermal Endurance & w' x B+ k7 DThe temperature below which a class of critical property will not be unacceptably compromised through chemical thermal degradation, over the reasonable life of an electrical product (relative to a reference material having a confirmed, acceptable corresponding performance) is defined as the Relative Thermal Index (RTI). More than one RTI may be appropriate for a given material depending on the property requirements for a given application. In certain cases, higher temperatures are permitted if so specified by the end-use product standard. 1 R# i& u/ x, M9 P% g4 D$ \ H/ f- b" t$ S XRTI Elec — Electrical RTI, associated with critical insulating properties. . x2 N2 k2 Z, vRTI Mech Imp — Mechanical Impact RTI, associated with critical impact resistance, toughness, elongation and flexibility properties. 1 j# k1 B/ [7 u1 S) p/ ^RTI Mech Str — Mechanical Strength (Mechanical without Impact) RTI, associated with critical mechanical strength and structural integrity where impact resistance, resilience and flexibility may not be essential.( Y. V; w4 ]# X2 m. s
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linke: http://database.ul.com/cgi-bin/X ... 7222&sequence=1作者: 学学安规 时间: 2011-5-6 11:17
好详细呀,学习了,顺便把HWI,HAI也解释一下吧作者: 安规007 时间: 2011-5-6 11:22
UL黄卡论坛上已经有详细解读过了 : n- ?7 f; e. X* J( G4 Y; Khttp://www.angui.org/read.php?ti ... UL%BB%C6%BF%A8.html作者: 茶馆 时间: 2011-5-6 11:54
十分感谢包子和007。作者: wangjb 时间: 2011-5-6 12:56
不错,很专业作者: 在多的画面 时间: 2011-5-9 14:23
HWI - 热线圈引燃试验, HAI -高电流电弧引燃试验, GWI - 灼热丝引燃试验,) c2 J9 r3 j0 s$ S" o+ d b
HVTR -高压电弧起痕 速度测试, D495 -高压低流干电弧阻抗测试, CTI - 相对电痕指数测试, 3 o( M% J3 ^) YHVAR - 高压电弧阻燃测试, DS - 介质击穿电压强度测试, VR - 体积电阻测试, % `9 r6 }# `* y2 T) x4 t4 ASR -表面电阻测试, DIM -尺寸稳定性测试, WAB -吸水性测试,* P8 p* |9 s ]0 [ B. U
HDT - 热形变温度测试, TI - 拉伸冲击性能测试, TS -拉伸强度性能测试, , F# L2 p( j7 Z o
II - 带缺口冲击性能测试, CI - 简支梁(夏比)冲击性能测试, FS -弯曲强度性能测试 ……