1
UL電線絕緣厚度,標(biāo)準(zhǔn)要求分別測(cè)量最大值和最小值。
附圖為絕緣切面的投影圖,絞合導(dǎo)體導(dǎo)致絕緣內(nèi)表面不規(guī)則。
這種情況該如何測(cè)量?
附UL2556標(biāo)準(zhǔn)相關(guān)章節(jié):
4 Insulation and jacket materials tests
4.1 Thickness
4.1.4.2.1 Averaging method
The minimum and maximum thickness shall be determined using the procedures described in Clause
4.1.4.1.1 or 4.1.4.1.2. For insulation, measurements shall be made within the irregularities resulting from
conductor stranding. For extruded-to-fill jackets, all measurements shall be made within the irregularities
resulting from the conductors. If the pin described in Clause 4.1.4.1.1 does not fit within the irregularities,
this method is not applicable.
[eley 在 2011-12-7 11:39:03 編輯過(guò)]
[eley 在 2011-12-7 11:41:03 編輯過(guò)]
[eley 在 2011-12-7 11:44:52 編輯過(guò)]
[eley 在 2011-12-7 12:19:16 編輯過(guò)]
[eley 在 2011-12-7 12:19:44 編輯過(guò)]
[eley 在 2011-12-8 10:36:54 編輯過(guò)]
2
求助同行幫忙解答。
[eley 在 2011-12-7 12:21:22 編輯過(guò)]
3
4
5
6
7
不是要測(cè)六個(gè)點(diǎn)嗎?
8