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以面两种情况OK
& k- H9 N8 g+ O. q+ a1， 加一层厚于1mm的套管+ w" c/ Q5 A5 f u
2，加两层可套管（每层需分别可通过电气强度测试）
) X6 o8 M" b. Z
- | i" v% z! P& @标准要求如下：; t/ @7 w0 k, d: C# {/ O
29.3 Supplementary insulation and reinforced insulation shall have adequate thickness,7 o# j; P% j) F- C5 h
or have a sufficient number of layers, to withstand the electrical stresses that can be expected! p( l+ E: A9 J% W1 ~, l/ Z
during the use of the appliance.9 _* A8 E5 n, w% e
Compliance is checked4 y6 ~, P! @, A/ ]7 p
– by measurement, in accordance with 29.3.1, or8 |" D+ E! w9 x% v# ^9 O
– by an electric strength test in accordance with 29.3.2, if the insulation consists of more
& ^! _- Y( v/ S2 [than one separate layer, other than natural mica or similar flaky material, or
$ V2 h4 i; R5 f% |– by an assessment of the thermal quality of the material combined with an electric strength
: B0 z3 b8 R' e) P# U/ jtest, in accordance with 29.3.3 and for accessible parts of reinforced insulation
/ b3 Y$ M) p0 a% ?' e3 kconsisting of a single layer, by measurement in accordance with 29.3.4, or
2 t4 S3 O+ P2 J. s2 B. c– as specified in Subclause 6.3 of IEC 60664-4 for insulation that is subjected to any# {: p% z6 V+ v- Z0 \
periodic voltage having a frequency that exceeds 30 kHz.7 A4 W% h0 P) h
29.3.1 The thickness of the insulation shall be at least6 R' z# ]8 c' B( ^: ~
– 1 mm for supplementary insulation;
4 W' |* h6 c# O# r' X1 l4 \0 n– 2 mm for reinforced insulation.
7 |6 Y; m$ m8 ?: R2 c. @4 R# K29.3.2 Each layer of material shall withstand the electric strength test of 16.3 for# h& N D6 Q) _* c
supplementary insulation. Supplementary insulation shall consist of at least 2 layers of/ u; W- b6 V" Y$ ]. w, a
material and reinforced insulation of at least 3 layers.9 }5 ?# Z- g& {- }
29.3.3 The insulation is subjected to the dry heat test Bb of IEC 60068-2-2 for 48 h at a
5 q" f) V$ `! n& w" Otemperature of 50 K in excess of the maximum temperature rise measured during the test of, z# ^- \$ ]# u. C9 u+ P$ a3 }( U
Clause 19. At the end of the period, the insulation is subjected to the electric strength test of& n4 P* F% R9 U& g
16.3 at the conditioning temperature and also after it has cooled down to room temperature.
4 o7 t/ ]5 e7 s. y$ e# vIf the temperature rise of the insulation measured during the tests of Clause 19 does not
1 K8 Z) K0 i- s0 f2 Oexceed the value specified in Table 3, the test of IEC 60068-2-2 is not carried out.. N2 E' m5 ^* Q& M- v* E
2 ]; ^0 O! e. H6 i3 J5 R, C- D; d
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发表于 2013-5-5 08:12
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个人认为，需要符合绝缘耐热，绝缘就是附加绝缘的耐压试验，耐热应当没问题，如果有认证自然更好，但是29章貌似对附加绝缘有厚度要求，你的绝缘胶布行吗？
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