BS EN 61557-8:2015
Current
The latest, up-to-date edition.
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 Insulation monitoring devices for IT systems
Hardcopy , PDF
English
30-06-2016
1 Scope
2 Normative references
3 Terms, definitions and abbreviations
4 Requirements
5 Marking and operating instructions
6 Tests
7 Overview of requirements and tests for IMDs
Annex A (normative) - Medical insulation monitoring devices
(MED-IMD)
Annex B (informative) - Monitoring of overload current and
over-temperature
Annex C (normative) - Insulation monitoring devices for photovoltaic
systems (PV-IMD)
Annex D (normative) - Insulation monitoring function of a photovoltaic
inverter (PV-IMF) or in a charge controller
Bibliography
Annex ZA (normative) - Normative references to
international publications with
their corresponding European publications
Defines the requirements for insulation monitoring devices (IMD) which permanently monitor the insulation resistance R[F] to earth of unearthed a.c. IT systems, of a.c. IT systems with galvanically connected d.c. circuits having nominal voltages up to 1000 V a.c., as well as of unearthed d.c. IT systems with voltages up to 1500 V d.c. independent from the method of measuring.
| Committee |
PEL/85
|
| DevelopmentNote |
Supersedes 95/200309 DC. (09/2005) Supersedes 04/30125208 DC. (11/2007) Supersedes 12/30274733 DC. (02/2015)
|
| DocumentType |
Standard
|
| Pages |
52
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This part of IEC61557 specifies the requirements for insulation monitoring devices (IMD) which permanently monitor the insulation resistance R F to earth of unearthed a.c. IT systems, of a.c. IT systems with galvanically connected d.c. circuits having nominal voltages up to 1000V a.c., as well as of unearthed d.c. IT systems with voltages up to 1500V d.c. independent from the method of measuring. IT systems are described in IEC60364‑4‑41 amongst other literature. Additional data for the selection of devices in other standards should be noted. NOTE Various standards specify the use of IMDs in IT systems. In such cases, the objective of the equipment is to signal a drop in insulation resistance R F below a minimum limit. IMDs according to this part of IEC61557 can also be used for de-energized TT, TN and IT systems or appliances.
| Standards | Relationship |
| DIN EN 61557-8 : 2015 COR 1 2016 | Identical |
| IEC 61557-8:2014 | Identical |
| NBN EN 61557-8 : 2015 COR 2016 | Identical |
| IEC 61557-8:2014/COR1:2016 | Identical |
| I.S. EN 61557-8:2015 | Identical |
| EN 61557-8:2015 | Equivalent |
| UNE-EN 61557-8:2016 | Identical |
Please Login or Create an Account so you can add users to your Multi user PDF Later.
Important note : All end users must be registered with an Account prior to user licenses being assigned.
Users cannot be edited or removed once added to your Multi user PDF.