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lds08080808 发表于 2016-9-26 09:35 & g) H& W8 U3 M, [
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: {" t. X. ]4 R65 Abnormal Operation Test
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65.1.1 If the conditions of normal operation are not representative also of abnormal conditions likely to be( F$ i7 w+ ?; x# O; M, _0 X: N
encountered in actual service, the product shall not cause a risk of fire, electric shock, or injury to persons
7 c6 t e1 P: f4 V; e1 C) d" |when operated under such abnormal conditions.* B' O8 ?$ G7 y( @& d
65.1.2 The conditions resulting from abnormal operation of a product shall be confined by the enclosure6 ~, E! H" w1 e
when the product is subjected to tests such as blocked armature in a relay, transformer burnout, stalled) ?5 k6 K" i |7 T2 n
rotor, operation without liquids, or other conditions that may be encountered in service.
O3 a N- u* u( n65.1.3 An electrode-type product shall be operated as described in Clause 65.1.4 until ultimate results are
1 N8 C8 p4 E+ X% w: W8 X- }- {obtained. The results shall not be acceptable if a nonintegral branch-circuit protector trips during the test.
( ^8 m W! N+ v1 G% kAfter the test, the product shall comply with the Starting Test, Clause 55 and the Input Test, Clause 56.8 {6 w- j! ^ l7 O+ O6 l! C! t
Exception: A product need not be subjected to this test if the water-level-limiting device operates for
" j& |) f/ @3 {100,000 cycles with no mechanical or electrical malfunction or significant pitting or burning of the contacts.9 C& z# n2 D" {5 x( w# V
65.1.4 The product shall be mounted as intended and connected to a source of rated voltage. The drain! I: \7 L& y* _/ L8 b# j+ B; u
valve shall be blocked closed, the water-inlet valve blocked open, each water-level-limiting device shall0 P5 G! r* f) p* D/ _- @# S8 p
be bypassed, and the electrodes are to be electrically connected. In addition, the product shall be
2 U! ~9 z" k: k6 H7 b5 s( Zmechanically and electrically isolated from any ground means. If the hardness of the water may be a9 U: _! ~3 D6 A7 A0 r
factor, the test shall be performed with a solution of 0.5 g (0.018 oz) of calcium sulfate (CaSO4) per litre: b/ U' l+ c0 a9 H: x" e* D7 Z
of distilled water. The product shall be operated until ultimate results are obtained.
! Q% Q0 t- Y; c$ w9 C& h: ]65.1.5 A product that is permanently connected to a water supply shall be operated without water.
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