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When measuring hazardous energy levels:( x5 c/ k( `( j0 S5 P1 F( D
a) Should component open/shorts be considered when determining maximum energy& ?% Z8 t* O) m" F8 Y
levels?) A5 K# O& o' j8 X) {- y& G
b) Should voltage tolerances per sub-clause 1.4.5 be used at the input power source?' r9 G5 J8 @7 k
APPLICATION GUIDELINE:8 e3 p6 o& O7 T, H. F
a) When determining maximum energy levels, component faults should not be
' F$ z' d% r5 U3 a& A/ p" Qconsidered.
8 Z* s8 D4 V/ j2 Ub) Input power source voltage tolerances should only be considered when test results* Z1 h; C m' R* t* z% ^- y, y: b, t( r
are borderline pass/fail., ^) u9 U( h, q7 I" I
RATIONALE:& F9 W0 J2 u% N9 B- l
a) In its compliance statement, sub-clause 2.1.1.5 indicates the equipment should be
6 G) h6 W2 ^' U+ P/ n4 H″operating under normal operating conditions.″
5 H# h7 `9 t# E: G4 c& J0 Gb) Most energy hazard measurements are associated with a regulated secondary d.c./ w2 ~0 |$ E' N0 N
outputs, so in most cases input supply tolerances will not affect the measurements.
" p( X# M& L/ p* O5 i——P60950 2.1.1.5-1 |
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