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If the equipment is intended for direct connection to an AC MAINS SUPPLY, the tolerances on6 A" i9 g5 i2 Z- M6 [. h( B
RATED VOLTAGE shall be taken as +6 % and –10 %, unless:( T! ?& I6 m) j) J
− the RATED VOLTAGE is 230 V single-phase or 400 V three-phase, in which case the
b7 u) |, S7 L( M3 X4 n' e8 etolerance shall be taken as +10 % and –10 %; or
9 F. k9 {8 z3 K1 I' z* ~: }− a wider tolerance is declared by the manufacturer, in which case the tolerance shall be* e& P/ F$ }% e4 i7 j2 m3 u& ?" V
taken as this wider value.
; l7 F& ^. p$ b- O! pIf the equipment is intended only for connection to an a.c. mains equivalent source, such as a
" h* Q4 E( c: N6 d3 dmotor-driven generator or an uninterruptible power supply (see 1.2.8.1), or a source other
N. v( ]/ j* Z; Kthan a MAINS SUPPLY, the tolerances on RATED VOLTAGE shall be declared by the manufacturer.' C- L8 @& u- M, f& R) w
If equipment is intended for connection to a DC MAINS SUPPLY, the tolerance shall be taken as9 \5 V8 l/ c* {; h6 k" M
+20 % and –15 %, unless declared otherwise by the manufacturer |
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