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When measuring hazardous energy levels:
1 K" m* C' |7 @: o% I# La) Should component open/shorts be considered when determining maximum energy3 r. t; k! E7 g; K2 r' d# s
levels?, m* @; [! Z* E: s' J
b) Should voltage tolerances per sub-clause 1.4.5 be used at the input power source?
3 y' c* A3 X# WAPPLICATION GUIDELINE:1 ^3 x- ?+ u {- @! t, d0 I- U) W
a) When determining maximum energy levels, component faults should not be
7 j3 R$ X# K* a' H3 M& Lconsidered.' r S9 K' B: M0 O; [1 L2 ~) X
b) Input power source voltage tolerances should only be considered when test results
! g/ d+ d7 U6 f1 Qare borderline pass/fail." [2 x7 z, L2 U$ J7 p
RATIONALE:
/ G' @. o% ]7 L# {$ T9 V. s, M2 C6 Da) In its compliance statement, sub-clause 2.1.1.5 indicates the equipment should be+ u! u+ N% U/ ?; z4 I/ H; r
″operating under normal operating conditions.″
7 P, P8 X2 L) |4 E: Z- H' A: q5 ?b) Most energy hazard measurements are associated with a regulated secondary d.c.
& Q" |* X" Y- \) R6 A% f, Noutputs, so in most cases input supply tolerances will not affect the measurements., _) ]- x- g$ c1 Z: B9 I
——P60950 2.1.1.5-1 |
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