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New Edition of IEC 61557-9 Published

Wide-angle view of the ALMA correlator

The International Electrotechnical Commission has released a new edition of IEC 61557-9. IEC 61557-9:2014 ed 3.0 applies to “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 9: Equipment for insulation fault location in IT systems”.

The new edition is available for purchase on the IEC’s website.

- Partner Content -

Why Capacitance? Benefits & Applications of Digital Capacitive Solutions

In this paper, readers will discover digital capacitive displacement measurement solutions not possible with conventional analog systems. The following applications address a wide range of industry sectors.

Description*

IEC 61557-9:2014 specifies the requirements for the insulation fault location system (IFLS) which localizes 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. IT systems are described in IEC 60364-4-41 amongst other literature. Additional data for a selection of devices in other standards should be noted”.

*Description from IEC website

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