IEC 61558-2-20:2000
Safety of power transformers, power supply units and similar devices - Part 2-20: Particular requirements for small reactors

Standard No.

IEC 61558-2-20:2000

Release Date

2000

Published By

International Electrotechnical Commission (IEC)

Status

Be replaced 2010-07

Replace By

IEC 61558-2-20:2010

Latest

IEC 61558-2-20:2022 RLV

Scope

Replacement: This part of IEC 61558 applies to stationary or portable, single-phase or poly-phase, air-cooled (natural or forced) general purpose small reactors, including alternating current, premagnetised and current compensated reactors, independent or associated, having a rated supply voltage not exceeding 1 000 V a.c. or d.c. and rated frequency not exceeding 1 MHz, the rated power not exceeding - 2 kVAR a.c. (2 kW d.c.) for single-phase reactors; - 10 kVAR a.c. (10 kW d.c.) for poly-phase reactors. This standard is also applicable to small reactors without limitation of the rated power; however, such small reactors are considered as special reactors and are subjected to an agreement between the purchaser and the supplier. This standard is applicable to dry-type small reactors. The windings may be encapsulated or non-encapsulated. This standard does not apply to - reactors covered by IEC 60289; - ballast for tubular fluorescent lamps covered by IEC 60920; - ballast for discharge lamps (excluding tubular fluorescent lamps) covered by IEC 60922. NOTE 1 For small reactors filled with liquid dielectric or pulverised material such as sand, additional requirements are under consideration. NOTE 2 In locations where special environmental conditions prevail, particular requirements may be necessary. NOTE 3 Normally, small reactors are intended to be associated with equipment for functional requirements of the equipment or requirements by the installation rules or by other appliance specifications. NOTE 4 Small reactors incorporating electronic circuits and components are also covered by this standard. NOTE 5 The safety insulation may be provided (or completed) by other parts or features of the equipment, such as the body. NOTE 6 Small reactors for particular applications will in the future be covered by complementary normative annexes.

IEC 61558-2-20:2000 history

• 0000 IEC 61558-2-20:2022 RLV
• 2010 IEC 61558-2-20:2010 Safety of transformers, reactors, power supply units and combinations thereof - Part 2-20: Particular requirements and tests for small reactors
• 2000 IEC 61558-2-20:2000 Safety of power transformers, power supply units and similar devices - Part 2-20: Particular requirements for small reactors