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sunny.yang 发表于 2019-6-25 16:20
: W5 b3 s! J4 ? y这里不是说V-1 可以吗
* ~1 b+ z* c; G- ~comply with the following flammability requirements:
$ Y# } n9 ?, _. Mrequirements of the re ...
9 w: g. ?$ F8 J. R+ U% |3 XV-1是有前提条件的。距离需要满足。
1 N8 n. v- Y6 f) @; E# i$ T- B6.4.8.4 Separation of a PIS from a fire enclosure and a fire barrier
/ r, t* F+ M6 ^! E$ z6 F% } _A fire enclosure or fire barrier made of combustible material shall:
1 T( q* g" B$ u$ R' u$ E6 f8 v% | X– have a minimum distance of 13 mm to an arcing PIS; and2 k J* @ H4 I6 g- @# Y! N- [5 S
– have a minimum distance of 5 mm to a resistive PIS.
% y* n$ ]. X7 Q5 \% vSmaller distances are allowed provided that the part of the fire enclosure or fire barrier within
+ Y5 z! P& k9 s* a/ P( lthe required separation distance complies with one of the following:; e+ |: K+ z% J8 _8 ~- W
– the fire enclosure or fire barrier meets the needle-flame test according to. n2 ] M3 D# R6 e
IEC 60695-11-5. Severities are identified in Clause S.2. After the test, the fire enclosure
2 @' H8 B# {6 r C/ Eor fire barrier material shall not have formed any holes that are bigger than allowed in
- e) f0 [' k8 V6.4.8.3.3 or 6.4.8.3.4 as appropriate; or6 F0 l: K0 m% G& o
– the fire enclosure or fire barrier is made of V-0 class material. |
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