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|  DSH 5891 S$ B7 T5 W7 a5 d
, Y2 d# s7 K% n+ w8 w d | Spray-on insulation system
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| 61730-1(ed.1) & 61730-2(ed.1)
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* W& {4 H, w1 bStandard(s)- IEC 61730-1, -2 Sub clause(s): DSH No 589) W) x' K: Q! C
Page: 1(1)
0 b1 `/ M! }6 C2 y" R) I$ hSubject: Spray-on insulation: q) a8 N8 P! U; M) H) A
system
: p2 {' f7 y" c" d( {. @Key words:* Z" u7 W0 `3 f
Sprayed insulation system
C$ r7 F( {; v6 X& G* jDecision approved by the CTL# ]$ G( x" j7 y% r( w# `5 W6 u
during its 43rd meeting in
9 h, H u1 d4 w& c. S3 L n9 DJohannesburg2 j, ?% F7 p/ ]* X$ @. K
Question: A manufacturer has presented a new type of insulation (backsheet) for use on PVmodules. i! `1 n2 G, F% Y1 K
The insulation material (plastic) is sprayed onto the back of the module. After it is hardened, a Q4 E- `: m2 [; ?2 O
second layer is sprayed onto the module. These 2 layers passed all tests of IEC 61730-1 and -2.
! |$ Q( W+ T, r1 z9 M+ ?* VBasic standards (e.g. IEC 60364-4-41 clause 4.12.1) do not allow varnish/paint to be used as
8 Z2 D3 n, |7 M1 T+ pinsulation. Spray-on insulation is something like paint but IEC 61730-1 and -2 say nothing against
" _: X9 _! Q+ Q$ a' }: Dsuch an insulation.; A& E) ^- o" g4 T. h c: f1 x
Is the use of a spray-on, or similar type of electrical and environmental coating system allowable
0 \6 T3 T" b, V6 c5 }# D+ j6 ifor certification to IEC 61730-1 and IEC 61730-2?
. r6 ^9 n) X P$ @( I. v( |Decision:) U4 K" V y; e0 \
Requirements for construction and performance as specified in IEC 61730-1:2004 and IEC 61730-
$ B' w% v N) g3 t% o* J$ ~2:2004, respectively, are sufficient for evaluation of unique insulating systems on photovoltaic
+ ?* L1 U/ x+ U) ~" amodules. Although these standards provide suitable rationale for evaluating the construction and
0 |# D5 {* n/ T8 `) [performance of the samples obtained by the CBTL, the issue of certification remains at the, \' h2 J/ }4 f! r9 T6 U& t
discretion of the NCB.
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发表于 2012-11-7 20:05
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