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这要看你的产品分类,不同的产品要求不一样,查UL标准2 A# i& {5 E: l) f
, J. U1 N' S+ d% s: @3 K1 ?4 m如冰箱,按照UL250,1.5m 到3m,注意如何测量,是从电源线露出机器处到插头之间的距离,不含插头,实际生产一般在1.8m左右,长了浪费成本& g% g7 ]/ U- M
-According to UL250,the length of a power supply cord shall be not less than 1.5 m (5 feet) nor more than 3.0 m (10
+ r6 z5 D7 r& e, m, Wfeet). The length shall be measured between the attachment plug and (1) any point at which the cord exits; t1 a4 q' |" x2 W+ Q
the refrigerator cabinet or (2) the last strain relief, whichever is shorter.
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' U* f% w! g/ @. ]# i空调 ,UL484,
- l9 q' }7 C' k1 I! I' {! m11.2.5 The length of a power supply cord shall be as follows:
5 M* g* @/ [" a' |Unit Rating Cord length9 |+ r, u& B; W" B8 U+ L* R( `
Volts Amperes Minimum Feet (m) Maximum feet (m)
7 t9 D# u6 g0 d/ g' |* ^) ^0 – 125 7.5 or Less 6 (1.8) 10 (3)
: q7 I1 \' S3 o/ A0 – 125 7.6 or More 4 (1.2) 10 (3)% \# t1 a q% L% F7 I* K
126 – 250 All 4 (1.2) 6 (1.8)
' o' ?1 ] Q8 w- I9 |( G' JThe length is to be measured between any point at which the cord exits the room air conditioner cabinet and the attachment plug. |
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