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原则上按照335的要求，如果是出美国的，就要参照UL的标准。. h4 y- ^9 Z- S' h' p5 K
8 Z2 k- F b& R: K) t! a, q/ t P- _2 v7 Marking and instructions.................................................................................................4 H3 ~9 |$ i. ~% E/ b
8 Protection against access to live parts............................................................................' o2 e/ l% h, Y( G# \; r5 Q
9 Starting of motor-operated appliances ............................................................................
' m& V8 L: u* m: W10 Power input and current ................................................................................................., G) L& k: V, f0 P/ k& Q
11 Heating ..........................................................................................................................
8 b/ @5 t( _% b s: Q7 I12 Void...........................................................................................................................8 x4 `% Q( h, m# b0 K
13 Leakage current and electric strength at operating temperature......................................( A" l i& |" C/ J6 ]
14 Transient overvoltages ...................................................................................................) U6 `! |: l+ e7 d- U
15 Moisture resistance ......................................................................................................... p4 c* T7 h) t
16 Leakage current and electric strength.............................................................................. R; F8 H8 `8 f8 {0 }
17 Overload protection of transformers and associated circuits ...........................................# i% H" ?! J6 v; W& v
18 Endurance......................................................................................................................
' l0 I& V/ n6 y, ]# ~, v19 Abnormal operation ........................................................................................................6 X6 |4 Q7 i- H1 O1 G1 x" [$ x
20 Stability and mechanical hazards .................................................................................* g. H+ ^; W7 q/ `2 A
21 Mechanical strength .....................................................................................................! v* g/ w1 f0 C5 b4 x! i) \
22 Construction .................................................................................................................2 Z( c+ N( M- _
23 Internal wiring..............................................................................................................." ~' c9 U1 ~0 t. z
24 Components ................................................................................................................./ G8 S2 y! M+ G
25 Supply connection and external flexible cords ..............................................................
7 y$ T1 J' ]0 i26 Terminals for external conductors.................................................................................& K6 i( y' i5 n& `( s+ ~. u5 C' V* A
27 Provision for earthing ...................................................................................................$ N' d$ w4 _& R6 v
28 Screws and connections ...............................................................................................
$ D6 u, H2 q$ j6 K" b29 Clearances, creepage distances and solid insulation ....................................................; T1 }! v6 b- T& k
30 Resistance to heat and fire...........................................................................................
5 C2 L' a" l" n3 c4 `* i2 C5 Z31 Resistance to rusting....................................................................................................
, g. }8 F J. c* q/ a32 Radiation, toxicity and similar hazards.......................................................................... |
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