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发表于 2010-11-9 13:25
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又有如下问题请教:
v' s* ~' A: Y$ d/ Y; f* c1.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?3 q$ k8 ?3 D2 g/ z% x/ {
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2.LED球炮灯Marking要参照哪几个标准 - l9 d, @5 h% z5 c' y4 B
是不是以UL1993为主兼参照UL8750?
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$ a6 @, D- t% Q+ T; n2 o3.功率因数需不需要打在标示上?! @: m" w. x6 D) q
UL8750 Clause 9.2.2 ! f5 U' c; _3 |$ U& w
A power source integrated with a controller or LED array or both shall be provided with markings
& \. }5 M1 f, s; U( M3 d(a) through (c) below. A power source packaged separately from the controller or LED array or both shall
: `7 Y# u9 C0 Y/ _- T" `, N& nbe provided with markings (a) through (d):; x: L8 J. _. q, _6 c% W
a) Environmental suitability (dry, damp, or wet location),! |" q3 [' i/ O+ z; w5 {; n" B
b) Input voltage,
( `) x7 y3 C" [! s7 jc) Input current and power factor, or input wattage, and c, G- N0 O7 x* a/ z. t
d) Rated output voltage and current (or wattage).2 e* l0 P. V8 O, G9 G" Z
但UL1993中并没有提及是要打上功率因数的标示。4 w& t" l7 x6 M1 I
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4."Class 2"和"Class 2 input only"要不要打在标示上?
. Q8 I' R: o; R" y( FUL8750 Clause 9.2.3 ( a; }% C% t0 u' m
Each output of a power source or controller intended to supply a Class 2 circuit shall comply with
5 o, ~: D8 I) H0 v- J- N7.12 and be marked “Class 2.”
& v8 c$ a7 l+ wUL8750 Clause 9.2.5
7 h0 b+ S: w8 v# y$ ^( jAn LED array, module, or package shall be marked with the following:1 J. s) j* m0 {& r( Z$ W$ X
a) Environmental suitability (dry, damp, or wet location),
- K. D% u' K' ~' B$ `b) Input limitations (i.e., Class 2 input only), if applicable,+ V" p& W( Z5 [! t- [
c) Input voltage, and
' {! A7 f& `& O( k9 x! ]( Vd) Rated current or wattage.
- A6 V1 j) p! P( q% I6 m: J但UL1993中并没有提及是要打上"Class 2"和"Class 2 input only"标示。: n5 J u0 w* n$ A2 e" K# E
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5.最小字高是1.3mm还是1.6mm?
6 R' U% ~) X6 F& g L% g) QUL1993 Clause10.1.5 , H |4 O; S' X
All markings shall have lettering in which:8 z" ]' m+ e0 P5 C
a) The precautionary signal word is at least 2.0 mm (0.08 in) high,
7 C& F- b$ e: R' j1 M( B. Hb) The text is at least 1.3 mm (0.05 in) high and contrasting in color to the background, and$ } d' i- U) m# }+ V. T& Q6 c* i" j
c) If molded or stamped in a material, the text is at least 2.0 mm (0.08 in) high, and if not3 J9 Z: v/ ~7 X# c% K5 O5 ]) V' t
contrasting in color, a depth or raised height of at least 0.5 mm (0.02 in).
% x5 @. K: M& WUL8750 Clause9.1.2 ( P2 ~* D8 c( I
A marking shall be legible, with minimum 1.6 mm (0.062 in) lettering and use one or more of the# l4 _5 A: I S/ Z
following methods: |
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