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Reference P-IEC 61557-9 ed2.0 withdrawn corrigendum

Title Versión Oficial en Español - Seguridad eléctrica en redes de distribución de baja tensión de hasta 1000 V en c.a. y 1500 V en c.c. Equipos para ensayo, medida o vigilancia de las medidas de protección - Parte 9: Dispositivos de localización de defectos de aislamiento en redes IT.
Publication date 2009-01-12
Format, price
(Swiss francs)
and language
130.- 45 pages
130.- 528 Kb
Abstract IEC 61557-9:2009 specifies the requirements for insulation fault location systems which localize insulation faults in any part of the system in unearthed IT a.c. systems and unearthed IT a.c. systems with galvanically connected d.c. circuits having nominal voltages up to 1 000 V a.c., as well as in unearthed IT d.c. systems with voltages up to 1 500 V d.c., independent of the measuring principle. This second edition cancels and replaces the first edition published in 1999. It is a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- scope, normative references and terms and definitions complemented;
- revision of requirements, marking and operating instructions and Clause 6;
- revision of Table 1;
- addition of Annexes A, B and C.
Technical Committee 85 - Measuring equipment for electrical and electromagnetic quantities  RSS
ICS Codes
25.040.40 Industrial process measurement and control
Replaced by


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