What is BS EN 61557-8 – Insulation monitoring devices about?
BS EN 61557-8 is a European Standard which is the eighth part of multi-series. This part of IEC 61557 specifies the requirements for insulation monitoring devices (IMD)which permanently monitors the insulation resistance RF to earth of unearthed a.c. IT systems, of a.c. IT systems with galvanically connected d.c. circuits having nominal voltages up to 1 000 V a.c., as well as of unearthed d.c. IT systems with voltages up to 1 500 V d.c. independent from the method of measuring. IMDs according to this part of IEC 61557 can also be used for de-energized TT, TN, and IT systems or appliances.
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 RF below a minimum limit.
Who is BS EN 61557-8 - Insulation monitoring devices for?
BS EN 61557-8 on insulation monitoring devices is relevant to:
- Electrical engineers
- IT systems manufacturer
- Manufacturers of electrical equipment
- IT industry
- Quality testing team
Why should you use BS EN 61557-8 - Insulation monitoring devices?
IMD devices are the devices that permanently monitor the insulation resistance to earth of unearthed a.c. BS EN 61557-8 provides you specifications on IMD devices, general requirements, types of IMDs, mandatory functions provided by IMDs, performance requirements, electromagnetic compatibility, safety requirements, mechanical requirements with an overview of requirements and different types of tests for IMDs.
As a result, BS EN 61557-8 provides credibility and durability that can assess the performance of monitoring devices, helping you to initiate protective measures for IT systems.
