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lds08080808 发表于 2016-9-26 09:35 : e8 T: {6 ]8 H+ S6 b: \! L
老大,是UL998,平时做美标产品少,欧标做完非正常不会重加水去评估,对美标标准理解也不透彻,所以上来请 ...
/ s& v4 q( X2 R# a65 Abnormal Operation Test
1 {0 G. ^0 V8 ^9 D2 f( R65.1 General
. {( R$ n4 y7 P# c$ q6 O65.1.1 If the conditions of normal operation are not representative also of abnormal conditions likely to be- `) p$ W+ r% t/ R6 l# H+ \5 o
encountered in actual service, the product shall not cause a risk of fire, electric shock, or injury to persons
( M3 @2 @0 K0 S$ X& Qwhen operated under such abnormal conditions.
( Q# H6 D# }+ r7 Z; i4 N65.1.2 The conditions resulting from abnormal operation of a product shall be confined by the enclosure
8 Z( }! j' V" V1 i- W% Iwhen the product is subjected to tests such as blocked armature in a relay, transformer burnout, stalled
5 r1 b5 u4 Z8 Y: E! B" C+ g4 nrotor, operation without liquids, or other conditions that may be encountered in service.
/ q/ L( B# H- F3 A! P65.1.3 An electrode-type product shall be operated as described in Clause 65.1.4 until ultimate results are; v+ `8 O" K2 H/ a" f
obtained. The results shall not be acceptable if a nonintegral branch-circuit protector trips during the test.
0 D9 G6 _# C% v: J4 q1 {2 b/ EAfter the test, the product shall comply with the Starting Test, Clause 55 and the Input Test, Clause 56.* O% i9 x) c( k0 X( O! A
Exception: A product need not be subjected to this test if the water-level-limiting device operates for: u, b) B2 S0 y Z2 Z, Z
100,000 cycles with no mechanical or electrical malfunction or significant pitting or burning of the contacts.
* t4 a. N) ^- }65.1.4 The product shall be mounted as intended and connected to a source of rated voltage. The drain6 W" N* p) _. T% j- o
valve shall be blocked closed, the water-inlet valve blocked open, each water-level-limiting device shall3 m/ J! P* D+ A3 T
be bypassed, and the electrodes are to be electrically connected. In addition, the product shall be/ H* h9 w& H" ~/ m9 s7 _- d
mechanically and electrically isolated from any ground means. If the hardness of the water may be a
1 q0 |5 E/ m# Z3 a6 h( C' H) D. lfactor, the test shall be performed with a solution of 0.5 g (0.018 oz) of calcium sulfate (CaSO4) per litre
- v+ z; |$ O( A) i5 vof distilled water. The product shall be operated until ultimate results are obtained.4 y$ [) r; q8 q$ b& q
65.1.5 A product that is permanently connected to a water supply shall be operated without water.
( y5 `- A2 Y1 q/ C) C% k* `# K* W( \/ ~0 ^7 }, [+ e K
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