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If the equipment is intended for direct connection to an AC MAINS SUPPLY, the tolerances on
0 U# q; [/ I1 i3 k) N( GRATED VOLTAGE shall be taken as +6 % and –10 %, unless:
! [4 c" e: V; c. n− the RATED VOLTAGE is 230 V single-phase or 400 V three-phase, in which case the0 ^' }' ?& Q& c9 C, n$ F- |% Y& M" j
tolerance shall be taken as +10 % and –10 %; or
: } u# o( `* F2 ] `0 L− a wider tolerance is declared by the manufacturer, in which case the tolerance shall be5 @' b1 c1 ]5 y! _0 a
taken as this wider value.5 x. @. I( @9 I4 L+ S' k, s# K" A: `- c
If the equipment is intended only for connection to an a.c. mains equivalent source, such as a
3 `$ [: B D* _1 Umotor-driven generator or an uninterruptible power supply (see 1.2.8.1), or a source other5 ?+ E. n" z Q" ?( O1 }
than a MAINS SUPPLY, the tolerances on RATED VOLTAGE shall be declared by the manufacturer.
: o( d' r0 W; p3 ]: MIf equipment is intended for connection to a DC MAINS SUPPLY, the tolerance shall be taken as
% V0 L$ Y6 Z* O0 B7 V( S+20 % and –15 %, unless declared otherwise by the manufacturer |
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