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|  DSH 589
% h$ o6 l1 f9 j+ ~) d+ t2 P/ t+ g2 f2 H
| Spray-on insulation system
# [3 [; _" H$ _7 l1 i7 }- V2 g | General
2 D4 B/ K) ?- N' p$ S( |0 S | 61730-1(ed.1) & 61730-2(ed.1)
( k5 P) }( B& B! v. [ |
! {4 l3 u0 `5 ` E
Standard(s)- IEC 61730-1, -2 Sub clause(s): DSH No 589
) N% m" N0 d& S6 J/ u+ iPage: 1(1)3 { y6 w( C6 _: ?+ b* m8 T' @; T
Subject: Spray-on insulation
$ x1 u3 y# Q" [, Vsystem
8 m, h1 ] \/ f" q2 IKey words:
! n' x: k- \ @7 c/ HSprayed insulation system
# y, N5 J7 }. w5 k+ [Decision approved by the CTL
b w l, v- U4 `, uduring its 43rd meeting in
( a# L" X1 S& Z5 l* J+ ~& UJohannesburg! c5 u( C# y( m
Question: A manufacturer has presented a new type of insulation (backsheet) for use on PVmodules.* J8 B( n# r% J& K1 v1 S) \
The insulation material (plastic) is sprayed onto the back of the module. After it is hardened, a
J) D- t4 d- S ?second layer is sprayed onto the module. These 2 layers passed all tests of IEC 61730-1 and -2.
2 H; `- ]# d3 g7 j( IBasic standards (e.g. IEC 60364-4-41 clause 4.12.1) do not allow varnish/paint to be used as: K% a! u, ~" @: n+ g
insulation. Spray-on insulation is something like paint but IEC 61730-1 and -2 say nothing against9 J$ D7 M3 G+ f4 N
such an insulation.9 l# K* j; p) W/ z7 T# t) |
Is the use of a spray-on, or similar type of electrical and environmental coating system allowable
; l& o4 y( n$ i1 Ufor certification to IEC 61730-1 and IEC 61730-2?
# Z0 Y( x0 G9 q7 k2 `Decision:
6 u" h) V& d1 z2 g" jRequirements for construction and performance as specified in IEC 61730-1:2004 and IEC 61730-
9 Q& ]3 x1 n9 `3 U2:2004, respectively, are sufficient for evaluation of unique insulating systems on photovoltaic; x: v* M9 T4 E' w e/ [3 r
modules. Although these standards provide suitable rationale for evaluating the construction and8 j! Z: D1 z! S, F) l3 A# V
performance of the samples obtained by the CBTL, the issue of certification remains at the# E6 u: |$ ^7 s4 K* Q7 ?( D) G- k
discretion of the NCB.
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发表于 2012-11-7 20:05
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