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If the equipment is intended for direct connection to an AC MAINS SUPPLY, the tolerances on- |3 o* Z% K( R0 g% P
RATED VOLTAGE shall be taken as +6 % and –10 %, unless:
$ L# X7 a3 n1 O5 ]2 E8 u$ o− the RATED VOLTAGE is 230 V single-phase or 400 V three-phase, in which case the7 O; Y0 x8 W2 {& \1 b0 l# y8 U
tolerance shall be taken as +10 % and –10 %; or6 ~" I3 z7 O0 S" y; |
− a wider tolerance is declared by the manufacturer, in which case the tolerance shall be
/ v3 T. l9 L: I8 \4 R5 ^, Ptaken as this wider value.; j( t) Q+ l. j* r6 ~9 u6 |: T
If the equipment is intended only for connection to an a.c. mains equivalent source, such as a
) D8 L% m5 q Y, ?7 V' Wmotor-driven generator or an uninterruptible power supply (see 1.2.8.1), or a source other
- U( d9 t: \' Q6 K J9 K1 Lthan a MAINS SUPPLY, the tolerances on RATED VOLTAGE shall be declared by the manufacturer.
7 z, X1 n0 ^4 m0 KIf equipment is intended for connection to a DC MAINS SUPPLY, the tolerance shall be taken as
; q8 R: f# } b7 r0 ]+20 % and –15 %, unless declared otherwise by the manufacturer |
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