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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, G' d+ u% Q' }3 o
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67.4 A heater shall bear the cautionary marking shown in Figure 67.1. The marking shall be located so; |; m! p/ T. D# O! g. n3 N
that it is clearly visible if servicing is attempted on the heater and shall have the minimum dimensions
0 Q+ N* e: K5 }( {' L1 Sspecified in 67.15. The height of the symbols shall be at least 1 inch (25.4 mm) and they shall be a color" n: H5 `: G/ o
that contrasts with that of the background and that matches the lettering.
. Y- H* n p' [( j: wException: A heater that complies with 8.10 and 8.12 need not comply with this requirement.* E1 {1 n. h& ?+ n) n; s
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8.10 During the examination of a heater in connection with the requirements in 8.1 – 8.9, a part of the6 y; {+ a8 S' J" L, g( ?
outer enclosure that may be removed without the use of tools by the user of the heater (to permit the
2 ]9 l2 t4 q N+ s5 `0 U- b# r {. Nattachment of accessories, to allow access to means for making operating adjustments, or for other
* J4 {% r5 [# J# w# D" W' N6 G: Wreasons) is to be disregarded – that is, it will not be assumed that the part in question affords protection# m- l$ M: l. R, M: K* k3 q
against the risk of electric shock. A warning marking such as that specified in 67.4 is not considered to
: g% p2 {3 ^+ \adequately protect against this risk of electric shock.3 k$ K: d4 D u D' ?& I" T
+ w x# N# O& i3 ?4 }/ U8.12 During the examination of a heater in connection with the requirements in 8.1 – 8.9, a part of the* `+ p8 M- i3 W
outer enclosure that is removed with the use of tools by the user of the heater to permit resetting of the4 Z/ I3 g: x' R: V4 L- T
resettable temperature control is to be disregarded – that is, it will not be assumed that the part in question6 U- P/ d# x2 O' x5 I
affords protection against the risk of electric shock, or injury to persons. A warning marking such as that" N$ I$ i2 m" c' a2 v
specified in 67.4 is not considered to adequately protect against this risk of electric shock, or injury to
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Exception: A heater marked in accordance with 67.4 and that complies with 8.13 need not comply with8 s3 {9 ~) R7 u! r9 V" {
this requirement.
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8.13 A product may employ a resettable temperature control when the reset means is inaccessible if8 n+ Z8 `- d3 ]0 H, o
designed in a manner that the product cannot be disassembled with readily available tools, such as screw
" m6 h0 T7 j1 o2 Gdrivers, wrenches, and similar tools, and the product is marked in accordance with 67.4. Such fasteners
3 S; q/ _+ [$ L) B5 yas rivets, one way screws, fasteners not readily accessible after assembly, and similar fasteners would be
: k) d- @% D! Yconsidered as causing the product to be not readily disassembled.% v; b* |$ e; e7 k$ ~
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