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glow-wire test 的总定义：
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Parts of non-metallic material shall be resistant to ignition and spread of fire.
( x# Q& n( T: X2 fThis requirement does not apply to decorative trims, knobs and other parts unlikely to be ignited or to propagate flames that originate inside the appliance. （IEC 60335-1-2006 Clause 30.2）! B" G7 q$ u1 |+ N+ o" a+ v
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30.2.2 For appliances that are operated while attended, parts of non-metallic material supporting current-carrying connections, and parts of non-metallic material within a distance
% d: _9 m( y# `/ i0 Y8 ?4 V6 Nof 3 mm of such connections, are subjected to the glow-wire test of IEC 60695-2-11. 6 C/ _/ h( D: c1 }/ w9 d- H
However, the glow-wire test is not carried out on parts of material classified as having a glowwire* [' F+ s7 a) m8 n; |1 N
flammability index according to IEC 60695-2-12 of at least
& q4 K! Z# a) h6 O% E– 750 °C, for connections which carry a current exceeding 0,5 A during normal operation,
$ Z! s8 }/ S9 ^& F$ l' b– 650 °C, for other connections.
w; J) w" I' o9 N+ s* ~If the glow-wire flammability index is not available for a sample with a thickness within0 Q5 I* `( j8 S4 m3 {
± 0,1 mm of the relevant part, then the test sample shall have a thickness equal to the nearest1 A- B4 ~+ e% K; z
preferred value specified in IEC 60695-2-12 that is no thicker than the relevant part.
2 Z- m% B8 `0 j% F. |0 V& RNOTE 1 The preferred values in IEC 60695-2-12 are 0,75 mm ± 0,1 mm, 1,5 mm ± 0,1 mm and 3,0 mm ± 0,2 mm.
3 D4 B: k, a, W- a, O# @$ e6 s' gWhere a non-metallic material is within 3 mm of a current carrying connection, but is shielded
1 B0 N' Y2 \4 s, Pfrom the connection by a different material, the glow-wire test of IEC 60695-2-11 is carried out O" w6 G+ h% ~8 s/ ?
at the relevant temperature with the tip of the glow-wire applied to the interposed shielding6 [# A: x3 `0 {% F
material with the shielded material in place and not directly to the shielded material.
4 C6 t% M' b; n7 l0 |4 aWhen the glow-wire test of IEC 60695-2-11 is carried out, the temperatures are" z( N+ m2 o7 s* U* J7 l
– 750 °C, for connections that carry a current exceeding 0,5 A during normal operation,. [) ^# _& |; x7 `3 ^
– 650 °C, for other connections.8 r; Q. g0 }7 h' B% d9 R6 i* m
NOTE 2 Contacts in components such as switch contacts are considered to be connections.0 \0 h; T% p' f, K) Z1 l
NOTE 3 The tip of the glow-wire should be applied to the part in the vicinity of the connection.: N% r2 F. [7 M1 j7 u. W
This test is not applicable to:
2 H& c8 `* ?& J( U2 Q; P! Y k– parts supporting welded connections;
, @' R2 Q/ q6 U$ z– parts supporting connections in low-power circuits described in 19.11.1;1 h/ _; w9 Z2 c
– soldered connections on printed circuit boards;& v1 z s4 i8 E7 P
– connections on small components on printed circuit boards;
) F9 L2 I- d5 m, R! {9 Y8 B3 |5 s+ T8 z4 pand parts within 3 mm of any of these connections.) i/ O, Y$ Y9 U4 \$ ?
NOTE 4 Examples of small components are diodes, transistors, resistors, inductors, integrated circuits and capacitors not directly connected to the supply mains.; p, B a, v4 s6 I, z
It is also not applicable to:& |5 s3 U$ q$ f- @
– hand-held appliances;
& m1 g; k/ ?8 P. U– appliances that have to be kept switched on by hand or foot;* ^& B! o5 J4 P1 U+ p
– appliances that are continuously loaded by hand. ; o/ ^! }! e1 y6 z& P* |, V
（IEC 60335-1-2006 Clause 30.2.2） |
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