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这个问题我也很想知道，能指出在标准什么地方描述吗？作者: songnic 时间: 2007-9-2 22:05
电木算不算木材啊,另外,楼主的线是内部线吗?电源线会有单绝缘的?作者: wwnw_007 时间: 2007-9-3 09:18
电木实际是一种塑料的俗名,并不是木材.所以电要是绝缘材料.作者: RodgerLan 时间: 2007-9-3 09:37
1.2.23 : l7 y) u8 m! p4 g2 Iclass II luminaire( O8 S% K- | j. v( _2 R8 `, B ?' V
luminaire in which protection against electric shock does not rely on basic insulation only, but in* y6 a5 \4 [9 f' a3 U
which additional safety precautions such as double insulation or reinforced insulation are9 H b ?( B5 w5 d
provided, there being no provision for protective earthing or reliance upon installation 6 w9 E& c: m( P, |: T% Bconditions.1 w1 B/ R- H9 {- U! |1 I
NOTE 1 Such a luminaire may be of one of the following types: ' \# T6 B( C7 D2 W; p; I, q$ F, Ja) A luminaire having a durable and substantially continuous enclosure of insulating material which envelopes all, T' F* [0 h3 v9 d7 Q
metal parts with the exception of small parts such as nameplates, screws and rivets which are isolated from live 6 L) |- V( [$ r: f7 ]parts by insulation at least equivalent to reinforced insulation. Such a luminaire is called an insulation encased ) b5 b z4 @/ Z$ l% D- o; d) Hclass II luminaire.3 u( B6 I0 \5 U0 ~' n' M
b) A luminaire having a substantially continuous enclosure of metal, in which double insulation is used throughout, , f) A0 L; \; R- bexcept for those parts where reinforced insulation is used because the application of double insulation is & p8 L+ w, o: s0 u7 _manifestly impracticable. Such a luminaire is called a metal-encased class II luminaire. # z9 N2 O9 w, [7 r9 @c) A luminaire which is a combination of types a) and b) above. 4 x+ w' Q7 u% q, P5 RNOTE 2 The enclosure of an insulation-encased class II luminaire may form a part or the whole of the2 L3 Y: f- d; H; }' m, j2 d
supplementary insulation or the reinforced insulation.& k: x. k7 ?- B A% a0 |
NOTE 3 If earthing is provided to assist starting, but is not connected to an accessible metal part, the luminaire- F- i) {! C0 p- w3 h1 v
may still be deemed to be of class II. Accessible metal parts in compliance with the appropriate IEC lamp + Q7 M- o0 W7 C, t& Mspecification and other metal parts not normally earthed and not normally accessible during normal use are not 8 x, j, Y$ W6 q* X1 Q0 p0 C6 Pregarded to be conductive parts which may cause an electric shock unless the tests of Annex A show them to be! J4 m/ Z9 n! @1 A/ C
live parts.3 m. l3 r6 H' U
NOTE 4 If a luminaire with double insulation and/or reinforced insulation throughout has an earthing terminal or an 9 J- I& Z8 r' B+ N2 b; mearthing contact, it is class I construction. However, a fixed class II luminaire intended for looping-in may have an ' p! S' K" I+ @/ z* z" K+ z; jinternal terminal for maintaining the electrical continuity of an earthing conductor not terminating in the luminaire, L! N( C# j7 }/ x( T: F
provided that the terminal is insulated from accessible metal parts by class II insulation.2 B! ?; K7 }2 L" x
NOTE 5 Class II luminaires may have parts in which protection against electric shock relies on operation at safety6 a( ~+ a. [& w( R* A
extra-low voltage (SELV).作者: jacobchang 时间: 2007-9-3 10:50
照此看来，软电线，在要国标还是可以浸锡的了，但就是不能再用这种接线端子接了（是用螺丝来锁紧的）作者: af204 时间: 2007-9-3 12:34
2 p2 q+ i! k/ G. _这个问题原来我也问过，在灯具的标准里没有具体的哪一条可以说明：木材不能作为绝缘材料 , A0 C" I7 j" U0 J' |只有一条：载流部件不能直接接触木材！( ~" ]1 E& f3 d5 u# l) j# O, {
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当然，从安全的角度考虑，木材是不能用作绝缘材料的，经过特殊处理的除外！作者: 红叶 时间: 2007-9-3 22:27
大家看看相关的CTL决议，可能对这个问题有帮助，转述如下： " C6 B) j0 X A" B f# x+ wQuestion: 1) In case a luminaire has decorative wooden parts in contact with current carrying ' z' C% ]8 k7 m# Cparts, can it be accepted? % W* E& ~8 h( K1 Q2) Can wood be used as insulating material? (For class III luminaires too)? ( I! [ D- O% j. h& z5 [Decision: 1) Not acceptable. ! i: C9 D' q) U- \2 J% @- F8 ]2) Wood can be accepted as supplementary insulation, if all relevant" ?/ J$ |- J5 h& [
requirements of the standard are comply with. $ T( {2 |' J4 `( G9 j6 w& N2 f! n& e这是IEC 60598-1(ed.5) 关于4.11.5的决议。具体内容我不翻译了，应该看起来没有问题。作者: yzyjy 时间: 2007-9-4 08:04
因为木材在湿度状态下会受潮而带电,故不能用.作者: canon 时间: 2007-9-4 08:41
标准规定绝缘材料部件应经受针焰试验或灼热丝试验,木材不能通过此两项试验之一,因此不能做为绝缘材料使用.作者: tianchi0305 时间: 2010-3-15 18:35
有谁知道电木的一些特性？