DSH 389 Marking and instructions

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DSH 389 1 a6 B2 H7 e( S  o/ z/ N 3 O8 I3 y/ P$ p, q; c+ ]* g% {

Marking and instructions 5 I) Q2 l. {  y! @  O+ o- o) w8 T

1.7.1

60950(ed.2);am1-am4 # W" j' U# S* i' [  `; f

2 k7 Y6 O! `, R0 o+ cStandard:
2 d( t: `2 |0 ]. }7 W7 V. q& FIEC 60950 (1991) 2nd ed., Amdts.1
! a& N5 ?7 W9 O9 O, G(1992), 2 (1993), 3 (1995), 4 (1996)
2 R8 M8 F& ^) v, w9 O2 ]Sub clause:
1 A( M% L3 g' \, G1.7.1
Sheet n. 389
1 }* v' h$ ]/ J3 q8 B' x$ ]( V. ePage 1(1)
Subject:
  k* r1 T# A3 `% S; B) TMarking and instructions
1 I2 a/ b; z% }. z; ~Key words:
- Marking
- Instructions
Decision confirmed
  h5 U: H) s2 d" N$ Zat CTL 38th meeting.
Question:
" p, B4 k- D1 k  K8 t4 M: jA piece of ITE (e.g. telecommunications rack) has multiple modular power supplies that are
removable. The supply connection (e.g. power supply cord) to the equipment terminates directly
to the power supplies. Is it permissible for the marked electrical ratings in the individual power
3 J3 G% P/ ^6 O4 P/ j! `supplies to be used to comply with the electrical portion of the equipment’s power rating marking
(clause 1.7.1), or must the equipment be provided with a separate electrical rating marking?
Decision:
The electrical rating markings on the power supplies may be relied upon to meet the electrical
& b8 x# ]( _4 C0 j# uportion of the equipment’s power rating markings if (a) the mains supply connection terminates
* b2 z$ `' k, N* q$ _, n9 R# K" ~, wdirectly to the power supply, (b) the power supply electrical rating(s) is readily visible, and (c) the
' q. T" z% B0 p2 Y8 V" d0 ]  Yequipment has a separate single marking that covers the other aspects of the power rating
! }- F1 s- P( Gmarking required by 1.7.1 e.g., manufacturer, model.

5 Q* H4 ?& g$ ?) N" @! d& J  {