UL1598之隔热棉！

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广东安规检测
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请教， UL1598里面用到的隔热棉是什么样的东西！
最好有图片示之！ 感激！

A19790414

就是常说的防火棉,是石棉做的!主要是防止温度过高,引发火灾!
2 e; `. }" U) }. G6 t: e- ]1 i- {% ^/ {我现在没有图片的!等我照了,再发上来!

阿bin

我公司做测试经常用啊，主要是用来测试RECESSED LAMP（筒灯），至于照片，我找找看

kelvinwu

是这种防火棉
5.18 Thermal insulation
5.18.1 Thermal insulation shall be fire-resistant material, such as glass fiber, inorganic material, or
polymeric material.
5.18.2 A polymeric thermal insulation material shall:
4 x) I" g$ h2 ^8 Z1 Q' A(a) have a temperature rating equal to or greater than the operating temperature in the
+ |( u( @8 Q0 B$ xluminaire; and
/ v' I9 h8 k! a" R* \7 R(b) have a minimum HB flammability rating, or comply with the horizontal burning flame test of
/ \+ R- S6 j9 l0 P1 `Clause 16.25.
5.18.3 Thermal insulation shall be reliably secured in place. It shall be attached to the luminaire in the
correct position by at least one of the following means:
: i' z. L5 {3 N# Q+ |$ E/ z" r(a) staples or bolts;
1 I% k4 P' E9 G- L8 L% s' H# P* |& }(b) adhesive applied to at least one-third of the surface of the insulation;
(c) parts of the luminaire that do not have to be removed for installation. A supply conductor
projecting through the insulation is not acceptable for securing the insulation in place; and
) v7 h5 D2 i/ p/ X(d) other means if investigated and found to be mechanically equivalent.
8 @" V% ~8 R7 B0 X( x5.18.4 Thermal insulation shall not be located within 6.4 mm (0.25 in) of any opening for the connection
of conduit unless the insulation is attached to a cover or other part that will be removed when conduit is
$ u* d( j% {. B* E. @! Y7 Wbeing attached to the luminaire.
5.18.5 Glass fiber thermal insulation provided as an integral part of the luminaire shall have a minimum
density of 9.6 kg/m3 (0.6 lb/ft3).

kelvinwu

19.16 Thermal insulation used for recessed temperature tests
7 G" g8 ~' S8 g4 J, I- T# p19.16.1 Thermal insulation of the loose-fill type shall be conditioned to the density specified by the
insulation manufacturer to obtain a required rated thermal resistance of Rsi 0.56 to 0.678 (R3.2 to R3.85).
19.16.2 Thermal insulation shall be conditioned, if required, by a blowing or vacuum machine before it is
( H2 u: J* o% @' A. iplaced around the test luminaire. Density shall be verified by placing insulation into a box of known volume
8 Q6 r- H/ L0 ^and weight, and then weighing the filled box. The difference in weight between the empty and full box,
divided by the volume, shall be the insulation density.

kelvinwu

Rsi 0.56到Rsi 0.678(R3.2到. R3.85)的热绝缘值
这几个参数最重要

kelvinwu

中文意思:
. ~, `4 {) O! O% W5 {, zThermal insulation of the loose-fill type shall be conditioned to a density as specified by the insulation manufacturer to obtain a required rated thermal resistance of Rsi 0.56 to 0.678 (R3.2 to R3.85).
$ w. `2 O2 z* ]5 L- {5 P
5 t8 V" s2 {( N2 J. F; |) y8 }流体灌注型的隔热材料应先作条件预处理，使其密度达到生产厂家的规格标准，这样才会具有所要求的额定阻热值 Rsi 0.56 to 0.678 (R3.2 to R3.85)。

依然

UL1598里面有两种绝热棉，一种是吸顶灯等表面安装式灯具在吸顶盘（canopy）里面用于隔热的材料，一般都是那种黄色玻纤棉。另外一种是用于嵌入式灯具测试使用的绝热棉，这种绝热棉标准没有规定材料，只限制了热阻值。可以找有检测过热阻值的绝热棉购买并要求其提供检测报告。

zjlncpbs

虽没有看到图片，能想像的出来，知道怎么做，见识了，谢过

welison

都是进口的，国内买不到。