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|  DSH 255
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| Resistance to fire for external parts (enclosures)
$ ]* a6 `3 A: O | 30.2
6 Q1 b2 \6 M) g7 f& }" } | 60335-1(ed.3)
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Standard: IEC 335-1, Ed. 3 Sub clause: 30.2 Sheet n. 255* t+ {3 X. o1 H" \: l( r$ ~( m" W
Subject: Resistance to fire for external parts (enclosures)0 r2 L U1 J: e3 v
Key words:9 E! K- {) o9 p- B( ^9 C
- resistance to fire' W' N! X. o! e/ [2 Y1 ?4 x3 y
- enclosures
! P. F# H9 Z. M8 }0 K1 {Decision 18 of 34th meeting/1997
! N$ |1 {' d% }- P7 O7 h/ z; x8 j6 IQuestion:
L8 X3 ]' g; w) J' l% M _! I% f; lShall external parts of non-metallic material (enclosures) be subjected to the tests of2 F7 ]& |1 w. o' r' @. s. C( s0 D) ]
subclause 30.2, when parts of insulating material supporting connections in position,
( t+ B0 s( }6 I, R* g! e$ Kas well as parts of insulating material supporting live parts, other than connections,
8 u8 M- t7 X0 \8 R# zin position, fulfil the tests of subclause 30.2 ?2 Z2 G, d# Z9 O( k9 b! U) @( \
Decision:
9 Y f. l$ e7 J+ P4 D6 gYes, the enclosure has to be tested with glow wire.* d7 z4 ^5 L9 N" b7 y
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发表于 2012-9-14 13:45
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