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发表于 2010-11-9 13:25
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又有如下问题请教:
5 X! P- N$ Q% |0 g8 r+ U, \' |* X! |5 b1.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?
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2.LED球炮灯Marking要参照哪几个标准
; ^- `' w( Z, `* ?: G5 ]; j* J是不是以UL1993为主兼参照UL8750?
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3.功率因数需不需要打在标示上?
0 q; }8 y# y+ t( |( vUL8750 Clause 9.2.2 3 C- \6 K5 r5 A$ K4 e* K
A power source integrated with a controller or LED array or both shall be provided with markings0 ]9 c, ]3 H; l3 \8 \! x
(a) through (c) below. A power source packaged separately from the controller or LED array or both shall2 }0 B" G f7 E
be provided with markings (a) through (d):7 f. w4 r9 C- t
a) Environmental suitability (dry, damp, or wet location),! }$ G* L4 f" o/ h# B2 A) f( x
b) Input voltage,! ]) j, {/ `2 g
c) Input current and power factor, or input wattage, and
9 O" G v4 G, q- `7 [1 Zd) Rated output voltage and current (or wattage).
+ l' Z6 w" T6 t; b但UL1993中并没有提及是要打上功率因数的标示。( z; s5 F" W2 G, v6 k ?
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4."Class 2"和"Class 2 input only"要不要打在标示上?
. n6 i; M$ w/ a. PUL8750 Clause 9.2.3 ( L. D- W! p, w3 |" I+ K/ x
Each output of a power source or controller intended to supply a Class 2 circuit shall comply with$ j. \. m' e" F+ v. m
7.12 and be marked “Class 2.”# Z) j! u" j! d- V9 l" s( z( p
UL8750 Clause 9.2.5' _) O w# K7 C' X& H- O+ z2 H" w4 e
An LED array, module, or package shall be marked with the following: Y6 x* K& R( g' Q G' c+ E
a) Environmental suitability (dry, damp, or wet location),% u/ D8 C7 I) s8 ~3 B" C
b) Input limitations (i.e., Class 2 input only), if applicable," `/ j% I Z% O! ~ _/ C- A) c2 L
c) Input voltage, and
; m8 l8 u$ d+ Q% u2 Z& l0 pd) Rated current or wattage.
0 Z* s3 D7 C& @* }) B, U; K但UL1993中并没有提及是要打上"Class 2"和"Class 2 input only"标示。
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5.最小字高是1.3mm还是1.6mm?3 q1 J; F1 \+ q! m6 t
UL1993 Clause10.1.5 : {" a* S7 V0 d/ q+ x3 m
All markings shall have lettering in which:
`6 s% d1 `5 q9 C. j p* v6 Ma) The precautionary signal word is at least 2.0 mm (0.08 in) high,
& W# ^( k% X! P6 `+ t1 r* q! Rb) The text is at least 1.3 mm (0.05 in) high and contrasting in color to the background, and2 f7 u4 t* C# o8 p5 p8 _8 {( F
c) If molded or stamped in a material, the text is at least 2.0 mm (0.08 in) high, and if not
& j! `/ F7 ]- B; W" T* w# {9 Econtrasting in color, a depth or raised height of at least 0.5 mm (0.02 in).8 e1 L# U- H# Y# Z1 L. L a' I
UL8750 Clause9.1.2
1 H% Y1 W/ Q4 m0 c- ~A marking shall be legible, with minimum 1.6 mm (0.062 in) lettering and use one or more of the
; V) @6 f/ V9 m* A" ufollowing methods: |
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