UL153-2014爬电距离
各位大神，请看附图标注"G"的位置，为什么“G” 位置的电气间隙24.1不适用？难道是不用测电气间隙不成。:dizzy:
24 Electrical Spacings
24.1 The spacing between uninsulated live parts of opposite polarity, and between uninsulated live parts
and metal that is capable of being grounded shall not be less than 1/4 inch (6.4 mm) through air or 3/8
inch (9.5 mm) over surface. The outer wrap of an open core and coil ballast is determined to be an
uninsulated live part with respect to this requirement.
Exception No. 1: The spacing requirements do not apply between uninsulated live parts of a wiring device,
such as a lampholder or switch, and dead metal that is part of the wiring device and including mounting
screws, rivets, yoke, clamp, or similar components; or for a portable luminaire provided with a grounding
means between such live parts and that part of the dead metal surface of the portable luminaire on which
the device is mounted in its intended manner. See Figure 24.1.
A. Uninsulated live parts of wiring device.
B. Insulating material of wiring device.
C. Mounting screw of wiring device.
D. Dead metal part of wiring device.
E. Dead metal parts of portable luminaire.
F. Spacings to which 24.1 applies.
G. Spacings to which 24.1 does not apply. See Exception No. 1 to 24.1.
请把UL153-2014版晒出来 标准说这种接线装置因为有接地而有它特定的安装方式
jjlamshushushu 发表于 2014-1-20 16:02 static/image/common/back.gif
请把UL153-2014版晒出来
不好意思，上面有公司名。晒出来被UL查到就不好了。:handshake 这个问题我问过UL的工程师
UL回复我说，因为G这个地方的距离是由元器件（端子）来保证的 520168 发表于 2014-1-20 17:02 static/image/common/back.gif
不好意思，上面有公司名。晒出来被UL查到就不好了。
可以去除水印和公司信息的。 520168 发表于 2014-1-20 17:02 static/image/common/back.gif
不好意思，上面有公司名。晒出来被UL查到就不好了。
用那个软件？:) 本帖最后由 gmr24185 于 2014-1-21 09:25 编辑
我来附上UL153_2014 jsspace 发表于 2014-1-20 17:17 static/image/common/back.gif
这个问题我问过UL的工程师
UL回复我说，因为G这个地方的距离是由元器件（端子）来保证的
标准里的intended manner应该就这意思 gmr24185 发表于 2014-1-21 08:26 static/image/common/back.gif
我来附上UL153_2014
哈哈，还是有你公司的信息哦
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