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[UL认证] UL 1278 中警告的问题

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发表于 2016-7-22 14:10 | 显示全部楼层 |阅读模式
广东安规检测
有限公司提供:
最近碰到个UL1278标准的关于Warning的问题,有一个没有可拆卸部件的取暖器,一方认为需要这段警告,另一方认为不需要,请大家讨论下到底需要吗
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67.4 A heater shall bear the cautionary marking shown in Figure 67.1. The marking shall be located so
8 z4 }4 [# L$ M" Uthat it is clearly visible if servicing is attempted on the heater and shall have the minimum dimensions
! V  v% D; ~6 [& N7 e; z1 Q7 Tspecified in 67.15. The height of the symbols shall be at least 1 inch (25.4 mm) and they shall be a color
* M: P; h5 `& f' D5 u: K5 t0 ?that contrasts with that of the background and that matches the lettering.% Z, a5 r/ L/ s" |
Exception: A heater that complies with 8.10 and 8.12 need not comply with this requirement.
( ]$ {0 C- A2 v, E  S2 R7 ?# C: t
/ s. T* |* {" Q) J$ o: f& y/ G8.10 During the examination of a heater in connection with the requirements in 8.1 – 8.9, a part of the
% t% d' e& c9 d: y/ M8 z+ h3 qouter enclosure that may be removed without the use of tools by the user of the heater (to permit the
. R# N& m. o1 Wattachment of accessories, to allow access to means for making operating adjustments, or for other3 S$ G" M  S* K  |! x0 W
reasons) is to be disregarded – that is, it will not be assumed that the part in question affords protection+ Q3 W2 |0 x6 ^! @3 r
against the risk of electric shock. A warning marking such as that specified in 67.4 is not considered to3 X  w  u/ U' _3 }6 S' ?6 y
adequately protect against this risk of electric shock.
% K, F# @4 b5 o- Y# x8 G, _" g! B4 J# t1 s+ @& O- i
8.12 During the examination of a heater in connection with the requirements in 8.1 – 8.9, a part of the
4 v/ \- ~6 _, ~$ A; m2 houter enclosure that is removed with the use of tools by the user of the heater to permit resetting of the/ r- O2 P* H( v% @7 i- ?
resettable temperature control is to be disregarded – that is, it will not be assumed that the part in question6 s* X2 _7 J% e7 n9 q9 [- M9 k
affords protection against the risk of electric shock, or injury to persons. A warning marking such as that
7 W5 B* e/ D9 Q5 c. h7 rspecified in 67.4 is not considered to adequately protect against this risk of electric shock, or injury to
. h2 S) M4 A4 K0 f: ?: h7 `persons.# r" @( J$ Y# @1 j/ ?& ?
Exception: A heater marked in accordance with 67.4 and that complies with 8.13 need not comply with
% M* v. j( l4 D$ Y4 C+ x- P  Zthis requirement.
% M7 c: \1 `/ n4 J* m" z8 |
) ?" k5 f# ?; w8.13 A product may employ a resettable temperature control when the reset means is inaccessible if6 h; q" N9 E- \
designed in a manner that the product cannot be disassembled with readily available tools, such as screw5 \3 ^- T6 w5 e
drivers, wrenches, and similar tools, and the product is marked in accordance with 67.4. Such fasteners
: I. p" M" z9 f) \7 ?as rivets, one way screws, fasteners not readily accessible after assembly, and similar fasteners would be
- Z7 q  Q5 U6 c; q4 F% l7 Uconsidered as causing the product to be not readily disassembled.
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发表于 2018-6-28 18:32 | 显示全部楼层
我也想问,有高人知道吗
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发表于 2018-7-2 12:29 | 显示全部楼层
帮楼主顶起,期待高手分析
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