|
又有如下问题请教:3 u8 _- Z! H% W& m: s
1.UL496 Table13中(Threaded ”go“ gauge for E26 medium-screw lampholders ”Not go“ plug gauge for E26 medium-screw lampholders "Go" 和“not Go” 指的是什么? A9 k5 @, A2 W3 o% _) X5 y% {, l
* C! I0 }5 w0 M: m1 |- P
2.LED球炮灯Marking要参照哪几个标准 ! c& Y& M f5 C- C; ^
是不是以UL1993为主兼参照UL8750?5 L( K) ]* I9 h$ N2 ], a& M
2 V. V; k% W3 Y! y3.功率因数需不需要打在标示上?; x" n, i/ |+ }; v4 O
UL8750 Clause 9.2.2 * W- i3 B, K; _
A power source integrated with a controller or LED array or both shall be provided with markings& r/ Y& W' F5 w6 h+ ?
(a) through (c) below. A power source packaged separately from the controller or LED array or both shall
+ H% B6 Q' X2 Obe provided with markings (a) through (d):9 }' b( w0 d& _0 ?0 F. D }- s1 V
a) Environmental suitability (dry, damp, or wet location),
4 \7 G. D" d% n! I5 B+ Xb) Input voltage," y& [1 l7 Q* d$ `% {' {9 ^
c) Input current and power factor, or input wattage, and! q# y( Q0 N* J/ U
d) Rated output voltage and current (or wattage).7 Q& y/ p: y2 y9 }
但UL1993中并没有提及是要打上功率因数的标示。8 s3 m% X( ?2 X$ M
+ n, D; f+ A' `
4."Class 2"和"Class 2 input only"要不要打在标示上?) D4 T6 P/ B q# H& D: ]2 M
UL8750 Clause 9.2.3 : y v K: J" z/ P& C
Each output of a power source or controller intended to supply a Class 2 circuit shall comply with4 U' Y9 s- e* j h
7.12 and be marked “Class 2.”
) p% c K3 J2 W g% J, u, s6 ~UL8750 Clause 9.2.58 Z7 _7 O! z( R
An LED array, module, or package shall be marked with the following:8 H1 }8 G, {8 w, k4 H' g
a) Environmental suitability (dry, damp, or wet location),; s( [ L& |! O5 @& E& E' s
b) Input limitations (i.e., Class 2 input only), if applicable,
A1 z' a7 [7 q% vc) Input voltage, and
; o; t/ w& j+ Q( [d) Rated current or wattage.% m$ c" x0 h# N W( b t
但UL1993中并没有提及是要打上"Class 2"和"Class 2 input only"标示。6 k. B$ n0 E0 ?0 Z/ [8 l6 _
, \9 s4 o2 | T7 l3 f- o3 \# ^$ U% k5.最小字高是1.3mm还是1.6mm?5 J- g' _ A+ H' a" w
UL1993 Clause10.1.5 ! t) O8 R9 }! a8 ^
All markings shall have lettering in which:. V- v2 M7 j" g# \9 v9 n
a) The precautionary signal word is at least 2.0 mm (0.08 in) high,
2 ]/ B2 P, ^1 F. _9 V3 E9 ob) The text is at least 1.3 mm (0.05 in) high and contrasting in color to the background, and$ {( C1 t; S- N5 D( ]" `
c) If molded or stamped in a material, the text is at least 2.0 mm (0.08 in) high, and if not; K# t" w; l, M" f+ ^: }8 P$ {
contrasting in color, a depth or raised height of at least 0.5 mm (0.02 in).
/ {4 r9 J: e a) {; ^UL8750 Clause9.1.2 , k4 R- z/ k- a5 I' P8 _4 b
A marking shall be legible, with minimum 1.6 mm (0.062 in) lettering and use one or more of the+ ^+ M* ^' t! w0 O/ r
following methods: |
|