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|  DSH 389
) c# J6 U: f% W/ P! f! C
% k( ]# p* v' g- ]1 \/ Y
! [/ C3 `8 E* b: O' O | Marking and instructions7 X& O5 f# B* H' f
| 1.7.1; G) v& Y2 i5 Q. h0 P% E
| 60950(ed.2);am1-am4
' H+ q7 A9 i6 a6 s# g* c( ^7 K |
Y: n( }) _7 R" {4 \" k; e2 p# zStandard:$ n0 m1 x% f) r
IEC 60950 (1991) 2nd ed., Amdts.1
7 u4 O! W8 g8 s(1992), 2 (1993), 3 (1995), 4 (1996)
, h" K0 v' J' T" F8 @Sub clause:
5 ^. {9 {1 Q. V0 S; P1.7.1
# T1 H; {+ H' Q# R/ _2 d, TSheet n. 389
/ R8 e+ ?' p4 ?6 V" t yPage 1(1)& h/ {) P6 X- D+ O( ]% g
Subject:5 k( s0 m. P# S& j( r, ^
Marking and instructions. S) v% ]. c) y9 h4 ^9 v
Key words:
" V1 g* c# t! S( V2 f. c' M" I- Marking
' T/ H. c3 d5 Q1 @- Instructions% o, q% k. p1 _ V; m6 [+ `
Decision confirmed
' O( O6 [- @8 q" `" d [* ]at CTL 38th meeting.
2 Y2 @% N6 X) h. ~9 D; sQuestion:8 }, @! ?/ a- R2 [
A piece of ITE (e.g. telecommunications rack) has multiple modular power supplies that are% C2 F/ u- q, h3 o
removable. The supply connection (e.g. power supply cord) to the equipment terminates directly; S# ?6 P8 {: t: |
to the power supplies. Is it permissible for the marked electrical ratings in the individual power
+ M# Q* r- N0 C: |& S" Ksupplies to be used to comply with the electrical portion of the equipment’s power rating marking
4 D- \( y; m3 ^) e(clause 1.7.1), or must the equipment be provided with a separate electrical rating marking?0 v; h9 `8 P8 o n1 u
Decision:
/ G- h% A/ b* \' BThe electrical rating markings on the power supplies may be relied upon to meet the electrical% q% ^ S: E% n: r
portion of the equipment’s power rating markings if (a) the mains supply connection terminates
7 z& _( S; `1 K( g! @9 fdirectly to the power supply, (b) the power supply electrical rating(s) is readily visible, and (c) the
8 l1 ?+ z I) p% P+ x* T8 K# pequipment has a separate single marking that covers the other aspects of the power rating% K3 x' R9 e6 @8 K; P2 E
marking required by 1.7.1 e.g., manufacturer, model.
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4 O) J2 [# ~1 T) h
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