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又有如下问题请教:. ]) a0 x' W. \: V; L$ c
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?
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8 u: v- k( S& x2.LED球炮灯Marking要参照哪几个标准 6 d( ]3 W, \! [4 M) [( L3 V; g6 u
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?
( s, w4 H" n0 d' H& _! u7 a% r# _4 bUL8750 Clause 9.2.2 5 F4 Y6 S5 I' L" f" f
A power source integrated with a controller or LED array or both shall be provided with markings. g/ v) }6 J9 y2 t' U) {* g
(a) through (c) below. A power source packaged separately from the controller or LED array or both shall# `# D. ?8 l7 [. c# j: d
be provided with markings (a) through (d):" g- x# c2 {: a+ M6 L0 }
a) Environmental suitability (dry, damp, or wet location),6 k! Y, B1 A$ d. K& C" K( z3 S
b) Input voltage,
! n4 o2 q6 }, _6 d( \c) Input current and power factor, or input wattage, and
1 P/ a E% _ _d) Rated output voltage and current (or wattage).
3 {6 y* U' \9 c% n& p/ G; u3 ~但UL1993中并没有提及是要打上功率因数的标示。
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4."Class 2"和"Class 2 input only"要不要打在标示上?
$ e( c1 x: k( x) e6 \ DUL8750 Clause 9.2.3 3 _- C2 k* q3 T# X: g" i
Each output of a power source or controller intended to supply a Class 2 circuit shall comply with9 \$ L0 }6 ~* I: V o1 N5 R$ R) u
7.12 and be marked “Class 2.”1 ^% e/ U8 v$ Y; e) Q l1 K3 w
UL8750 Clause 9.2.5, h' P @2 d8 e
An LED array, module, or package shall be marked with the following:
- F; P7 }) k& f4 F+ h" fa) Environmental suitability (dry, damp, or wet location),8 f2 c7 \$ t4 I* g9 Q$ [; J
b) Input limitations (i.e., Class 2 input only), if applicable,- K4 h8 r, d1 h, v
c) Input voltage, and
$ j( r2 f$ {5 \d) Rated current or wattage.
; H; c, i# S- M% R4 ^但UL1993中并没有提及是要打上"Class 2"和"Class 2 input only"标示。5 _ F4 O! _& E# i
; e! n; y0 c* O6 E5.最小字高是1.3mm还是1.6mm?
, M; ?( H% n& m7 [1 MUL1993 Clause10.1.5 + _# @$ V+ t2 C3 C4 n$ v
All markings shall have lettering in which:
8 q; {( u$ w0 H) I* U+ W3 la) The precautionary signal word is at least 2.0 mm (0.08 in) high,$ F' h. R7 C* B& z4 S
b) The text is at least 1.3 mm (0.05 in) high and contrasting in color to the background, and
' m9 m9 d; p" V f# U) kc) If molded or stamped in a material, the text is at least 2.0 mm (0.08 in) high, and if not- u8 e4 K$ R2 f
contrasting in color, a depth or raised height of at least 0.5 mm (0.02 in).
; ~8 a6 c D, S1 ?1 U& uUL8750 Clause9.1.2 $ U/ ~6 n% w/ Z( X. [
A marking shall be legible, with minimum 1.6 mm (0.062 in) lettering and use one or more of the
; M' {( F% n- t O: ?: U* `+ Z2 \following methods: |
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