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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。( w' m- U6 a1 C, A
4 s& Z C _# c- d+ ~: L7 Marking and instructions.................................................................................................5 e% k8 T, j0 v- m% ?( |8 ]
8 Protection against access to live parts............................................................................
, ~, o( R; M# T% d9 Starting of motor-operated appliances ............................................................................
1 D; x/ l7 D7 `& V) a10 Power input and current .................................................................................................
$ M& d: U. c I* I4 j: @11 Heating ..........................................................................................................................5 H: J4 k3 x1 F- R& k
12 Void...........................................................................................................................- Y* ?1 H4 ?) N
13 Leakage current and electric strength at operating temperature......................................; H4 X. B% |( U ~
14 Transient overvoltages ...................................................................................................
$ R7 H% @) \: c. w& I0 x15 Moisture resistance ........................................................................................................
1 ^$ O/ O% ?+ z% C7 f- p16 Leakage current and electric strength.............................................................................
! R& ~; k4 f K# C0 I17 Overload protection of transformers and associated circuits ...........................................% J1 Z3 R6 ]+ C9 Y2 W
18 Endurance......................................................................................................................
3 |, d. P8 a1 k$ ]; w! i4 l19 Abnormal operation ........................................................................................................
( H( V- A6 w/ m: u' N2 z" `; e% H- j20 Stability and mechanical hazards .................................................................................# P0 J- o- c1 K V7 O& P5 ~; h; R
21 Mechanical strength .....................................................................................................
8 Q& N. m' {- Z( g/ s0 ^22 Construction .................................................................................................................- `. f* [, g& C1 C0 }- A
23 Internal wiring...............................................................................................................4 ?- G3 p+ u+ o, ]" |5 M
24 Components .................................................................................................................; Y' P8 | [( G# P. U: R4 T
25 Supply connection and external flexible cords ..............................................................
4 z4 t0 k U4 ~* c26 Terminals for external conductors.................................................................................
9 r1 M; ]8 n3 y. T0 {8 U8 V# I- `5 h27 Provision for earthing ...................................................................................................6 a1 j: z/ ?6 v m) Z% a. S# V) \
28 Screws and connections ...............................................................................................
0 f0 M3 v+ A# X! g2 z$ ]. N5 `/ O29 Clearances, creepage distances and solid insulation ....................................................
! }& l9 N6 L3 H30 Resistance to heat and fire...........................................................................................
, e2 Y9 h6 y0 M, u8 ?% ?' Q31 Resistance to rusting....................................................................................................% t6 |9 R2 |* _/ y( _. I! X3 _8 |6 T
32 Radiation, toxicity and similar hazards.......................................................................... |
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