|
& R* x8 Q7 w/ q, o% Y* T$ j, e! _如何理解5.3.1? The electrical equipment shall comply with EN 60204-1, with the following requirements given in 5.3.2, 5.3.3,
. [: Z, \9 L+ J' ?, s4 x9 f. V: I5.3.4 and 5.3.5.,是产品必须符合EN 60204-1,然后还必须符合5.3.2, 5.3.3,5.3.4 and 5.3.5. ,还是必须符合EN 60204-1的5.3.2, 5.3.3,5.3.4 and 5.3.5的要求的那一部分?今天感到很凌乱啊!+ t' Q- T2 d/ M1 U+ n
$ G) a4 N) _$ e* n- O) H
2 ^9 s3 v& X! h" A. v8 ^下面是 EN454 5.3的全文
6 f; _$ ^" |$ Q; j" s7 c2 e5.3 Electrical hazards. @" q$ l- P7 t3 Z( f) T
5.3.1 General
! [0 C6 Q/ h* J0 C) B" D+ Z/ MElectrical equipment – for example switches – that may be exposed to water, e.g. during cleaning, shall be
/ @( c1 N1 H( g- ]protected to an appropriate IP-rating according to EN 60529 and EN 60204-1.. ^6 a# Q3 e# n
The electrical equipment shall comply with EN 60204-1, with the following requirements given in 5.3.2, 5.3.3,
( l- A6 Y: k6 b! f" k- ?- M4 d5.3.4 and 5.3.5.
- P8 x& a2 Q# D9 c2 E5.3.2 Safety requirements related to electromagnetic phenomena, A5 q/ [& c2 C/ E
The machines shall have sufficient immunity to electromagnetic disturbances to enable them to operate safely
- J0 v4 T l' l, m6 @0 p- Bas intended and not fail to danger when exposed to the levels and types of disturbances for the intended use. h6 z4 i+ y/ }* f# X3 {$ {8 b `* p
of the machine (see EN 61000-6-1).+ v; n5 M% c9 z
The manufacturer of the machines shall design, install and wire the equipment and sub-assemblies taking into* a+ @, z; H6 x& u& Q
account the recommendations of the suppliers of these sub-assemblies.' ]% u U$ E/ Y/ Q# p
5.3.3 Protection against electric shock: p7 U* b1 I6 q$ H
The electrical equipment shall comply with EN 60204-1:2006, Clause 6. ?& c- _, N d. e) U
5.3.4 Power circuits+ Q: R4 n; E4 D( R; x9 I
Devices for detection and interruption of over-current shall be applied to each live conductor in compliance
; V9 {; [6 [5 S% Xwith EN 60204-1:2006, 7.2.3. In case of single phase machines, no such device is required for the earthed
8 ~& [( j2 b) W- Xneutral conductor.
+ P+ i* x1 K9 r9 P% t. D5.3.5 Protection against earth faults in control circuits
0 D: Y1 N1 M: E) T- S) J6 N( ~For machinery supplied from a single-phase conductor and an earthed neutral conductor the single pole4 d$ V5 k) o" s1 V- L. T6 V
interruption shall be in the phase conductor (see EN 60204-1:2006, 9.4.3.1).
0 h" U8 x1 _: p' K! \% V" s: y; K) Q& f( D) Q9 C
|
|