CENELEC
Project
| Reference | EN 61557-8:2007 |
|---|---|
| Title | Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 8: Insulation monitoring devices for IT systems |
| Project Number | 16958 |
| Abstract/Scope | This part of IEC 61557 specifies the requirements for insulation monitoring devices (IMD) which permanently monitor the insulation resistance to earth of unearthed IT a.c. systems, for IT a.c. systems with galvanically connected d.c. circuits having nominal voltages up to 1 000 V a.c., as well as of unearthed IT d.c. systems with voltages up to 1 500 V d.c. independent from the method of measuring. This second edition cancels and replaces the first edition published in 1997. This edition constitutes a technical revision. The following changes were made with respect to the previous edition: a) definitions complemented; b) revision of some requirements; c) addition of information on operating instructions; d) sections 'type tests' and 'routine tests' complemented; e) modification of Table 1; f) addition of Annexes A and B. The contents of the corrigendum of May 2007 have been included in this copy. |
| Status |
Published
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Status
| Current Stage code | 6060 |
|---|---|
| Current Stage code date | 2007-07-20 |
| Current Stage code deadline | 2008-02-01 |
| Deadline date for vote |
Legal
| Directive(s) | LVD (2006/95/EC) |
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| Mandate(s) | |
| Order Voucher |
Details
| IEC Technical Body | IEC/TC 85 |
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| Reference Document | IEC 61557-8:2007 (EQV) + corrigendum May 2007 (EQV) |
| ICS | 17.220.20 - Measurement of electrical and magnetic quantities 29.080.01 - Electrical insulation in general 29.240.01 - Power transmission and distribution networks in general |
| Keywords | Distribution system; LV; Safety; Insulation; IT system |
| Note | Voting results presented to 129 BT further to national comments during BT consultation by correspondence (Item 2.1.15) |
| A-Deviation(s) | ES |
| Special National Condition(s) |
Environment
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Clause
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Categories - Aspects
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Product Life Cycle
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Information
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History
Implementation Dates
| date of Ratification (DOR) (1) | 2007-04-11 |
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| date of Availability (DAV) (2) | 2007-07-20 |
| date of Announcement (DOA) (3) | 2007-08-01 |
| date of Publication (DOP) (4) | 2008-02-01 |
| date of Withdrawal (DOW) (5) | 2010-05-01 |
Relations
| Supersedes | EN 61557-8:1997 |
|---|---|
| Superseded by | prEN 61557-8 |
| Normative reference (6) |
EN 55011:2007
HD 60364-7-710:2012 corr. EN 60664-1:2007 EN 60664-3:2003 EN 60691:2003 EN 60721-3-1:1997 EN 60721-3-2:1997 EN 60721-3-3:1995 EN 60947-5-1:2004 corr. November 2004 corr. July 2005 EN 60947-5-4:2003 EN 61010-1:2001 corr. June 2002 EN 61326-2-4:2006 EN 61557-1:2007 EN 61810-2:2005 |
(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved
(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat
(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level
(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement
(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn
(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.
