DSH 274 Accessibility to glass part of UV tube during maintenance operation

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DSH 274 ! R; U$ Q1 V( J! |. Q 7 I9 {- j* m' |! m6 J

Accessibility to glass part of UV tube during maintenance operation + |8 P2 L: d! Z5 V" a; E

8.2

60335-1(ed.3) / m/ Y8 l! \" A& q% O7 e# i

. ?" ]+ Q/ v/ d8 mStandard: IEC60335-1 : Ed. 3.0 Sub clause: 8.2 Sheet n. 274
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0 L) G) w, l. b$ n. E/ ^/ U5 l! eSubject: Accessibility to glass part of UV tube during maintenance operation
Key words:
- accessibility
8 Z- N9 e1 Q7 W; ?5 t- glass tube
Decision n. 20 taken at 36th meeting/1999
Question: Is it possible to have access to the external part in glass of UV tubes of an air
, Y. w/ h, W# }0 B6 X- hcleaner, with the help of test probe finger of 12 mm diameter, after opening of the
cover by an user (change of air filter for example), taking into consideration that the
. B. P, @/ j. s5 o. dinstruction of use specifies “ before maintenance actions, it is necessary to
disconnect the appliance from the supply network by taking off the plug ”?
Decision: 8.2 applies so the glass and the tube must be constructed so that double or
* ~3 j3 ?$ u- I8 J. o1 @4 ^7 jreinforced insulation are fulfilled regarding live parts.
The indication of the instruction is not sufficient to comply with the standard.
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3 e1 |. {) E3 M& m* R* U. t
% ]+ m% V! N3 h- t