UL 1278 中警告的问题

wwwbridge · 发表于 2016-7-22 14:10

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

67.4 A heater shall bear the cautionary marking shown in Figure 67.1. The marking shall be located so
that it is clearly visible if servicing is attempted on the heater and shall have the minimum dimensions
specified in 67.15. The height of the symbols shall be at least 1 inch (25.4 mm) and they shall be a color
that contrasts with that of the background and that matches the lettering.
Exception: A heater that complies with 8.10 and 8.12 need not comply with this requirement.

8.10 During the examination of a heater in connection with the requirements in 8.1 – 8.9, a part of the
outer enclosure that may be removed without the use of tools by the user of the heater (to permit the
attachment of accessories, to allow access to means for making operating adjustments, or for other
reasons) is to be disregarded – that is, it will not be assumed that the part in question affords protection
against the risk of electric shock. A warning marking such as that specified in 67.4 is not considered to
adequately protect against this risk of electric shock.

8.12 During the examination of a heater in connection with the requirements in 8.1 – 8.9, a part of the
outer enclosure that is removed with the use of tools by the user of the heater to permit resetting of the
resettable temperature control is to be disregarded – that is, it will not be assumed that the part in question
affords protection against the risk of electric shock, or injury to persons. A warning marking such as that
specified in 67.4 is not considered to adequately protect against this risk of electric shock, or injury to
persons.
Exception: A heater marked in accordance with 67.4 and that complies with 8.13 need not comply with
this requirement.

8.13 A product may employ a resettable temperature control when the reset means is inaccessible if
designed in a manner that the product cannot be disassembled with readily available tools, such as screw
drivers, wrenches, and similar tools, and the product is marked in accordance with 67.4. Such fasteners
as rivets, one way screws, fasteners not readily accessible after assembly, and similar fasteners would be
considered as causing the product to be not readily disassembled.

BV211 · 发表于 2018-6-28 18:32

我也想问，有高人知道吗

lds08080808 · 发表于 2018-7-2 12:29

帮楼主顶起，期待高手分析

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[UL认证] UL 1278 中警告的问题

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