标题: Hosedown test [打印本页] 作者: barry-xu 时间: 2010-9-1 11:23 标题: Hosedown test 请问那家实验室可以做这个测试？& Z0 L9 d4 y5 |7 m1 ~* a
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Hosedown test( K2 f8 o9 P6 }' r/ F: e3 B
the enclosure and its external mechanisms shall be subjected to a tream fo water from a hose 6 M6 |, K1 x$ q* ^& w
that has a 25 mm inside diameter (1 inch inside diameter) nozzle that delivers at least 240 L per % O4 u( j/ R3 iminute (65 gallons per minute). the water shall be directed at all joints from a distance of 3.0-3.5m(10-12feet). the nozzle shall be moved along each joint one time at a uniform nominal rate of 6mm/s (1/4 inch per second). a conduit may be installed to equalize internal and external pressure, but # P, h$ q1 z8 t0 B' O7 o* `
shall not serve as a drain.4 W% m+ V8 b& ~( c: N
1 p8 Y( ]5 ?6 J1 A9 x- N" L# g6 M1 ethe enclosure shall be considered to have met the requirements if at the conclusion of the test no water has entred the enlcousre. $ z1 b! @& L1 v! h: G # g" Q: Q6 n& Q, J; b5 J! U6 C6 F0 b; ^2 @6 @
谢谢作者: Andy.Yang 时间: 2010-9-1 12:49
It's very easy to do by yourself, just prepare a set of test equipment, and the most important is that you must send the meter to be calibrated...作者: barry-xu 时间: 2010-9-2 09:35
thanks for your advise, 9 E" t4 {& ?' q7 [but I need third part to verfiy this test. do you have any other idea for this? that's my pleasure if you can introduce any lab to me?作者: Andy.Yang 时间: 2010-9-2 10:39
Normally, it's for UL Type 4X test, from UL's side, they wanna use the manufacturer's equipment and witness this test in the field, what I know, at least in Jiangsu province, it seems like there is no lab which can do this test...作者: barry-xu 时间: 2010-9-3 11:20
thanks作者: hwtao0506 时间: 2012-8-19 22:14
thanks for your advise