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When measuring hazardous energy levels:
* t, m/ V9 m) t, o2 a+ J- ]a) Should component open/shorts be considered when determining maximum energy4 K6 z8 \8 t) ^% e6 b1 k) d* b3 O( d
levels?
; T. \1 r+ t4 Lb) Should voltage tolerances per sub-clause 1.4.5 be used at the input power source?
6 z8 Q+ _$ d, e7 ~APPLICATION GUIDELINE:
& \, ]3 l4 {4 y- w/ H; b, ja) When determining maximum energy levels, component faults should not be+ O+ {# g% u8 ]& W
considered.
( f7 w) M5 D% ?b) Input power source voltage tolerances should only be considered when test results4 p! \0 P4 w. y! s9 K# ]6 Q. u
are borderline pass/fail.
/ T+ S" S; }9 w/ h, MRATIONALE:# d) d6 s' I+ A, L2 l3 j
a) In its compliance statement, sub-clause 2.1.1.5 indicates the equipment should be5 Y$ K6 r3 Y! b! U* A8 R4 q
″operating under normal operating conditions.″
9 E ~7 f; ~4 d9 b5 bb) Most energy hazard measurements are associated with a regulated secondary d.c.
, O' Q5 m* H" u# _7 E4 V! boutputs, so in most cases input supply tolerances will not affect the measurements.6 U! E9 H0 T) C7 Z* z+ t' e0 F
——P60950 2.1.1.5-1 |
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