DSH 633A Classification and test of digital cameras with built in flashes

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DSH 633A 1 Z$ I2 p$ j+ b+ W 5 N9 y$ P  H6 S* F

Classification and test of digital cameras with built in flashes

1.2.4.2, 1.2.6.4, 1.2.8.6, 2.4 8 |1 f7 Q7 |8 F/ \" S8 L  R

60950-1(ed.1) & 60950-1(ed.2) / a; I" b3 W6 Q( ]# Z( D. v4 q

Standard(s):
8 k, y; U' `8 n& m. cIEC 60950-1 ed.1 (2001) IEC 60950-1 ed.2 (2005)
Sub clause(s):
1.2.4.2, 1.2.6.4, 1.2.8.6, 2.4
DSH 633A
Subject:
Classification and test of digital cameras with built in flashes
0 i6 U& g, g9 l3 b2 m6 ^' dKey words:
5 P3 U( L' @( S! `$ c) ?' y- digital cameras
" U% o% e8 ]: J9 V% h- flash circuits
- hazardous voltages
. T4 d& I/ Y0 i+ z' l6 r# hApproved by the 45th CTL Plenary meeting 2008
" W- S1 w9 a3 i' G9 g- S8 qQuestion
$ S( F8 O) ~. G1 Q  L0 N! J$ [1. Is an electrical enclosure per clause 1.2.6.4 required for Digital Cameras that contain a (Xenon tube) flash, if the flash energy storage capacitor is charged to a hazardous voltage?
2. What protection class against electric shock should be defined?
3. Is an electric strength test between parts/circuits at hazardous voltage and SELV circuits/conductive enclosure required? All these parts are commonly connected at one point without insulation (secondary ground).
Decision
# \) f) ]! {' F5 z1. Yes, an electrical enclosure is required.
2. A classification according to 1.2.4 is not necessary, but the construction has to provide double or reinforced insulation between hazardous live parts and accessible parts. Marking to Class II is not required.
. y$ T, G6 C; e* }3. An electric strength test is required in accordance with IEC 60950-1 2nd Edition, Table 5C.

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