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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。' \9 \9 Z2 |+ N, H9 W6 ] q5 q
( X% c B- Z! `6 G7 Marking and instructions.................................................................................................
5 a2 ~9 m- B2 a7 w" Q# C8 Protection against access to live parts............................................................................
2 _& u6 ~! P0 \- O( T# Y9 Starting of motor-operated appliances ............................................................................
' Z$ a2 f/ G# I2 ?10 Power input and current .................................................................................................9 h4 Q& @$ w" a
11 Heating ..........................................................................................................................
3 s; r" d2 `" T+ F b. q12 Void...........................................................................................................................) i) N8 _8 N8 J, H
13 Leakage current and electric strength at operating temperature......................................, D# {- Y- [$ `
14 Transient overvoltages ...................................................................................................1 f7 O0 A6 G" a1 I" t) M S3 E
15 Moisture resistance ........................................................................................................
) R d4 D7 H0 R$ |9 M/ H16 Leakage current and electric strength.............................................................................
, G! @1 D+ p2 p: H* a7 {17 Overload protection of transformers and associated circuits ...........................................
8 P4 J+ Y: @' ]! [& |; w18 Endurance......................................................................................................................% C5 s. o! l& D' D1 e
19 Abnormal operation ........................................................................................................
8 N) v8 [: b( V( v2 k20 Stability and mechanical hazards .................................................................................
8 [" L! E# [ ^' {+ E6 a' y21 Mechanical strength .....................................................................................................
" S; a9 ^8 P4 k F! C4 ^, q7 E22 Construction .................................................................................................................
* q7 G( l) T* W) H9 F* Y* b23 Internal wiring...............................................................................................................+ A8 f; X+ x' H0 ^
24 Components .................................................................................................................. ]! B3 `4 i. F& k/ R5 V$ e
25 Supply connection and external flexible cords ..............................................................& M+ ]/ s1 i6 [7 C2 L6 y
26 Terminals for external conductors................................................................................. A F- s/ s4 \
27 Provision for earthing .................................................................................................../ }+ w3 V2 o6 n2 j# Y, O& D
28 Screws and connections ...............................................................................................
/ R6 \" t2 {! D- q29 Clearances, creepage distances and solid insulation ...................................................." E. }* }. w6 H. v1 Z
30 Resistance to heat and fire..........................................................................................., @# Z6 W2 a; v5 @" c1 s
31 Resistance to rusting....................................................................................................8 S' W. ^( n. L1 C6 `3 J
32 Radiation, toxicity and similar hazards.......................................................................... |
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