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lds08080808 发表于 2016-9-26 09:35 : ?2 {! D& G9 K# \! y
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 ... 0 N! A# M& y' _
65 Abnormal Operation Test
6 k; ~4 Q% L8 K65.1 General
# Y9 ~- f2 s' w# [5 k+ U65.1.1 If the conditions of normal operation are not representative also of abnormal conditions likely to be }8 z$ _, h3 g4 W2 u; h
encountered in actual service, the product shall not cause a risk of fire, electric shock, or injury to persons( @- i3 W6 V1 R" ?
when operated under such abnormal conditions." r0 {% T7 c7 x* n: F
65.1.2 The conditions resulting from abnormal operation of a product shall be confined by the enclosure0 ?3 c8 m) {" C9 P' L i( h
when the product is subjected to tests such as blocked armature in a relay, transformer burnout, stalled
: D- X# l+ b0 A$ Q* Lrotor, operation without liquids, or other conditions that may be encountered in service.; D8 x, M' Y; E1 C, }# j9 n
65.1.3 An electrode-type product shall be operated as described in Clause 65.1.4 until ultimate results are5 z$ g4 w3 w* \5 Y
obtained. The results shall not be acceptable if a nonintegral branch-circuit protector trips during the test.
) c7 d4 B6 i$ D# @% W# n9 @After the test, the product shall comply with the Starting Test, Clause 55 and the Input Test, Clause 56.
! R# s# Y: u9 `Exception: A product need not be subjected to this test if the water-level-limiting device operates for7 }( r/ M2 ~$ W3 V* k
100,000 cycles with no mechanical or electrical malfunction or significant pitting or burning of the contacts.; H* ~2 p; o0 l2 G
65.1.4 The product shall be mounted as intended and connected to a source of rated voltage. The drain
. }5 H1 E2 y8 e& J6 Z4 s+ svalve shall be blocked closed, the water-inlet valve blocked open, each water-level-limiting device shall
) g- s! V _$ C: G9 l8 Dbe bypassed, and the electrodes are to be electrically connected. In addition, the product shall be! \, {% R) z6 q R, t, q* x( u" \
mechanically and electrically isolated from any ground means. If the hardness of the water may be a
- C8 x- Q8 @( D3 [* k1 ?% u( Afactor, the test shall be performed with a solution of 0.5 g (0.018 oz) of calcium sulfate (CaSO4) per litre
: f3 z+ _6 Y" `$ x X& vof distilled water. The product shall be operated until ultimate results are obtained.: l! w: S8 O' W( f( X# R7 ^
65.1.5 A product that is permanently connected to a water supply shall be operated without water.- C+ ~7 m# L M0 \
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