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0安规金币
最佳讨论将获取五个安规威望,水贴删除后,前200贴技术讨论(包括提问)者将获取一个安规威望除!
& q* y/ H7 w& U/ j( s- @) H8 B) k# _讨论结束後才会一次性补给所有参与者威望!0 ^/ I; K5 w# u O
最佳讨论将送给参与较多,讨论积极,讨论深刻的会员! 有异议者,可以提出另奖五个威望,但最多再送出两个!
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0 d; S, y/ a& C' i! d话题: 7 ?$ T2 E4 T" t7 D k* K' K3 ~
聚合材料的测试和正确地选用,包括UL/IEC/CSA的测试方法7 F+ N c; y9 {/ ?: F
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讨论时间:
/ i7 ]) m, k+ K' k O8 H: ]- M2008.10-2008-111 _- y6 t3 D( x5 N
- l0 P/ x% Y3 b5 V) w( `背景:
9 I, l3 F& c# A2 ^' K: q9 T# v对聚合材料的要求,不管是在UL的标准里还是在IEC系列的标准里都是有严格的要求,他们通过这样和那样的测试来保证塑胶料的防电防火防老化等物理和化学的要求。正因为这些要求和测试,导致我们在产品设计和测试中时,经常会因为聚合材料的存在,出现了选材和测试的困难,所以有必要通过一个专题来讨论和总结。3 ?8 ^$ e; \: n! H$ ]* O
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参考标准: w6 ~2 V; C* L/ l
UL94
* I; r2 T- S' {* S0 |+ \) u bUL746A Polymeric Materials-Short Term Property Evaluations 7 y7 G1 R1 y9 E; J" T. c& b( \
UL746B Polymeric Materials – Long Term Property Evaluations
; L; v. }( B3 G* B+ F; sUL746CPolymeric Materials – Use in Electrical Equipment Evaluations) f; G$ {7 }6 X7 j4 f" D! I
UL746D Polymeric Materials –Fabricated Parts
. p( c9 H4 I5 R- ^/ d: _! c% SUL746E Polymeric Materials – Industrial Laminates, Filament Wound
" q2 Y6 p6 Y, V! tTubing, Vulcanized Fibre, and Materials Used In Printed- Wiring Boards # [% L$ t; l$ R ?: X
IEC 60664-3:1992, Insulation coordination for equipment within low-voltage systems – Part 3: Use of coatings to achieve insulation coordination of printed board assemblies$ ]) U0 l2 H- W& [5 T6 O- @
IEC 60695-2-2:1991, Fire hazard testing – Part 2: Test methods – Section 2: Needle-flame test
9 k. j3 J3 ]& YIEC 60695-2-11, Fire Hazard testing – Part 2-11: Glowing/hot wire based test methods – Glow-wire flammability test method for end-products/ M; A0 B6 g4 s; M" | v
IEC 60695-2-12, Fire Hazard testing – Part 2-12: Glowing/hot wire based test methods –Glow-wire flammability test method for materials
0 B2 V, u9 e M I& j- `1 t0 A" a# qIEC 60695-2-13, Fire Hazard testing – Part 2-13: Glowing/hot wire based test methods –Glow-wire ignitability test method for materials: n4 @+ R( P Z; e O
IEC 60695-10-2, Fire hazard testing – Part 10: Guidance and test methods for the minimization of the effects of abnormal heat on electrotechnical products involved in fires –Section 2: Method for testing products made from non-metallic materials for resistance to heat using the ball pressure test1 F0 u6 Y% x% o5 F. S+ V
IEC 60695-11-10, Fire hazard testing – Part 11-10: Test flames – 50 W horizontal and vertical flame test methods+ h. G5 W; R" m1 t1 z; P" e6 L* z
IEC60335/IEC60745/IEC60950/IEC60065等各系列产品 3 F4 |- [# M1 Q
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" ^- m8 s2 l3 e5 p' t所涉及标准不一一列出,请根据标准谈认知,不要抄标准、转老贴烂贴炒冷饭,谢谢!
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0 E: c" H: H- F. k( f% T9 P中心议题:
$ j! f6 @% k! N+ ?; @) t) k1、聚合材料的测试方法
6 ~5 S, {# N# n6 E" C- ?! y; g2、聚合材料的选材依据
; @4 T7 x: C% s9 {3、区域标准的差异与共性) t+ E" ?2 \2 G) Z
4、器具类型确定与材料选取/ |4 D# Q- m4 V' \: F, A& \+ C
5、产品标准的差异与共性2 o; n4 a$ d/ F' Q* L3 N _) c1 E
6、测试经验介绍1 ?+ Q1 S0 K4 {9 r ^
7、测试方法与设备交流: P! q& h" `6 _. U4 Y; ` G: S
8、测试失败对策
* L2 \6 r3 Z: y/ |$ y0 p欢迎添加议题! |
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