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When measuring hazardous energy levels:' L% j5 ]3 q4 q) r; i" R
a) Should component open/shorts be considered when determining maximum energy, I( y9 D/ }6 B, ?5 o) O( s0 U
levels?
: R* V# G4 ^- y- a/ a2 kb) Should voltage tolerances per sub-clause 1.4.5 be used at the input power source?# C6 V" j$ O9 X1 q' J( |! r
APPLICATION GUIDELINE: `, d. o A1 Z2 a2 b+ F0 n* K
a) When determining maximum energy levels, component faults should not be" J% j! L) V! @
considered.
; {) _" [6 I, B8 V" f' ?9 [0 mb) Input power source voltage tolerances should only be considered when test results
8 z5 ~, b' s5 [0 Tare borderline pass/fail.
+ }+ O. p$ V2 U. b8 o' b" V6 A7 kRATIONALE:- y2 F. |8 [% I2 {( j- S) u, K
a) In its compliance statement, sub-clause 2.1.1.5 indicates the equipment should be9 h# E6 P- U" C' s
″operating under normal operating conditions.″
7 {/ T/ ^) }; q; _6 A0 v( e; nb) Most energy hazard measurements are associated with a regulated secondary d.c.
: Y3 P+ E4 r8 S- J8 g5 c( {6 Joutputs, so in most cases input supply tolerances will not affect the measurements.
, A* Y- o% o6 e. q* i) ^2 [——P60950 2.1.1.5-1 |
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