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lds08080808 发表于 2016-9-26 09:35
8 M9 W7 e- ?% g. |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 ... & k& i9 }: h( R1 P: w# D1 @
65 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; p" a1 Q: m6 V6 z# m X: S
encountered in actual service, the product shall not cause a risk of fire, electric shock, or injury to persons" Z" U, L3 P9 P8 }/ }: q
when operated under such abnormal conditions.
7 S" i( x# r- F65.1.2 The conditions resulting from abnormal operation of a product shall be confined by the enclosure' S5 ~ W4 g# b( L8 b. o: y
when the product is subjected to tests such as blocked armature in a relay, transformer burnout, stalled
: B$ O }4 D! d! b- `; F% D$ S$ Orotor, operation without liquids, or other conditions that may be encountered in service.
6 f3 A! C- `0 K65.1.3 An electrode-type product shall be operated as described in Clause 65.1.4 until ultimate results are
" _# Q7 j O7 ` Z. F) }obtained. The results shall not be acceptable if a nonintegral branch-circuit protector trips during the test.* J( Y2 ~. U" S. ~' w% j5 C
After the test, the product shall comply with the Starting Test, Clause 55 and the Input Test, Clause 56. G2 l. |" y4 h Q
Exception: A product need not be subjected to this test if the water-level-limiting device operates for
# U& b$ g1 h; \100,000 cycles with no mechanical or electrical malfunction or significant pitting or burning of the contacts.
3 o% L# n- y' y9 t9 O `65.1.4 The product shall be mounted as intended and connected to a source of rated voltage. The drain, p; P$ I: b' M* K7 m2 B" D* ], L
valve shall be blocked closed, the water-inlet valve blocked open, each water-level-limiting device shall
' E9 {0 H$ |3 M' Hbe bypassed, and the electrodes are to be electrically connected. In addition, the product shall be
, Q6 e4 O; N+ h6 }0 e G8 [mechanically and electrically isolated from any ground means. If the hardness of the water may be a9 L9 Y o& R( L& N9 U* \4 e8 M2 [
factor, the test shall be performed with a solution of 0.5 g (0.018 oz) of calcium sulfate (CaSO4) per litre% P' [0 g* C1 y5 [% j* c8 _/ u
of distilled water. The product shall be operated until ultimate results are obtained.
( s4 O* ?7 `2 M9 V% y% s65.1.5 A product that is permanently connected to a water supply shall be operated without water.
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