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参数资料
| 型号： | 8443-2 |
| 厂商： | 3M |
| 文件页数： | 3/4页 |
| 文件大小： | 0K |
| 描述： | COLD SHRINK .27-.56 X 2" GRY |
| 标准包装： | 12 |
| 系列： | 8440 |
| 类型： | 套管 |
| 长度： | 0.167'（50.80mm，2.00"） |
| 直径： | 0.27" ~ 0.56"（6.9mm ~ 14.2mm） |
| 材质： | 硅树脂 |
| 颜色： | 灰 |
| 产品目录页面： | 2647 (CN2011-ZH PDF) |
| 其它名称： | 00054007094852 05400709485 5400709485 54007094852 80-6102-5523-6 80610255236 |
D. Thermal Shock
Assembled units from the fluid resistance test were used
for the thermal shock evaluation. The units were subjected
to 15 cycles of the following thermal shock sequence:
1.
2.
3.
4.
30 minutes at -66?F/ -55?C.
5 minutes at 74?F/23?C.
30 minutes at 500?F/260?C.
5 minutes at 74?F/23?C.
The insulation resistance values and results of test are
found in Table 3.
F l u i d
T e s t
I n s u l a t i o n
R e s i s t a n c e
W i t h s t a n d
R e s u l t
M o n s a n t o L . D .
J e t A
M I L - L - 7 8 0 8
M I L - L - 2 3 6 9 9
5 % S a l i n e
B e f o r e
A f t e r
B e f o r e
A f t e r
B e f o r e
A f t e r
B e f o r e
A f t e r
B e f o r e
A f t e r
1 . 5 x 1 0 1 3 o h m s
1 . 0 x 1 0 1 2 o h m s
7 . 0 x 1 0 1 2 o h m s
1 . 7 x 1 0 1 2 o h m s
3 . 5 x 1 0 1 2 o h m s
6 . 5 x 1 0 1 2 o h m s
8 . 0 x 1 0 1 2 o h m s
3 . 5 x 1 0 1 2 o h m s
9 . 0 x 1 0 1 2 o h m s
6 . 5 x 1 0 1 2 o h m s
2 5 0 0
2 5 0 0
2 5 0 0
2 5 0 0
2 5 0 0
2 5 0 0
2 5 0 0
2 5 0 0
2 5 0 0
2 5 0 0
V - r m s
V - r m s
V - r m s
V - r m s
V - r m s
V - r m s
V - r m s
V - r m s
V - r m s
V - r m s
P a s s
P a s s
P a s s
P a s s
P a s s
P a s s
P a s s
P a s s
P a s s
P a s s
Table 3
E. Altitude
Electrical integrity at high altitudes was determined by
testing to Mil Standard 1344A, Test method 1004.1.
Typical test values are found in Table 4.
1 . 8 x 1 0 o h m s
Altitude
5 0 , 0 0 0
7 0 , 0 0 0
I n s u l a t i o n
R e s i s t a n c e
1 . 0 x 1 0 1 1 o h m s
1 2
W i t h s t a n d
2 5 0 0 V - r m s
2 5 0 0 V - r m s
R e s u l t
P a s s
P a s s
Table 4
F. Heat Aging
Installed silicone rubber insulators were subjected to an
eight hour heat aging test at 500?F/260?C. Other units were
subjected to 401?F/205?C for 30 days. The silicone rubber
remained resilient and showed no sign of deterioration.
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