Elektrotechnika

Amendment

This document, together with IEC 61643-01, is applicable to devices for surge protection against indirect and direct effects of lightning or other transient overvoltages.

These devices are intended to be connected to the DC side of photovoltaic installations rated up to 1 500 V DC. Performance and safety requirements, tests and ratings are specified in this document. These devices contain at least one nonlinear component and are intended to limit surge voltages and divert surge currents.

SPDs complying with this standard are exclusively dedicated to be installed on the DC side of photovoltaic generators and the DC side of PV inverters.

SPDs for PV systems with energy storage (e.g. batteries, capacitor banks) are not covered in this standard.

SPDs with separate input and output terminals that contain specific series impedance between these terminal(s) (so called two-port SPDs according to IEC 61643-01) are not covered.

SPDs compliant with this standard are designed to be permanently connected, where connection and disconnection of fixed SPDs can only be done using a tool. This standard does not apply to portable SPDs.

NOTE 1 In general SPDs for PV applications do not contain a specific series impedance between the input/output terminals due to power efficiency considerations.

NOTE 2 Wherever reference is made to the electric power system or the power system within this document, this refers to the DC side of the photovoltaic installation.

Amendment

This standard specifies requirements for the functionality and interfacing of cableless control systems, including safety-related functions, that provide cableless communication (for example radio, infra-red) between operator control station(s) and the control system of a machine. Specific requirements are included for operator control stations that are movable or portable by the operator.This document does not deal with cableless communication between parts of a machine(s) that are not operator control stations.

This document is not intended to specify all the necessary requirements for the design and construction of a cableless control system. For example, it does not specify communication protocols, frequency or bandwidth aspects, nor the full range of constructional requirements such as electromagnetic compatibility, etc..

The provisions of this document are intended to be applied in addition to the requirements for electrical equipment in relevant parts of IEC 60204 series.

This document is a type-B2 standard as stated in ISO 12100.

AMD

Amendment 

This part of IEC 62477 applies to power electronic converter systems (PECS) and equipment, their components for electronic power conversion and electronic power switching, including the means for their control, protection, monitoring and measurement, such as with the main purpose of converting electric power, with rated system voltages up to 36 kV AC or 54 kV DC

This document also applies to PECS which intentionally emit or receive radio waves for the purpose of radio communication.

This document can also be used as a reference standard for product committees producing product standards for

adjustable speed electric power drive systems (PDS),

standalone uninterruptible power systems (UPS), and

stabilized DC power supplies.

For PECS for which no product standard exists, this document provides minimum requirements for safety aspects.

This document has the status of a group safety publication in accordance with IEC Guide 104 for power electronic converter systems and equipment for solar, wind, tidal, wave, fuel cell or similar energy sources.

According to IEC Guide 104, one of the responsibilities of technical committees is, wherever applicable, to make use of basic safety publications and/or group safety publications in the preparation of their product standards.

IEC 62477-1 is applicable within this document unless specifically stated. References to IEC 62477-1 regarding applicability at the clause level do not supersede the requirements specifically highlighted within this document. E.g. a reference to a clause in IEC 62477-1 which references a table in IEC 62477-1, which has been modified for usage within IEC 62477-2, the table in IEC 62477-2 is the superseding table.

This document

establishes a common terminology for safety aspects relating to PECS and equipment,

establishes minimum requirements for the coordination of safety aspects of interrelated parts within a PECS,

establishes a common basis for minimum safety requirements for the PEC portion of products that contain PEC,

specifies requirements to reduce risks of fire, electric shock, thermal, energy and mechanical hazards, during use and operation and, where specifically stated, during service and maintenance,

specifies minimum requirements to reduce risks with respect to pluggable and permanently connected equipment, whether it consists of a system of interconnected units or independent units, subject to installing, operating and maintaining the equipment in the manner prescribed by the manufacturer,

establishes an arc fault rating label requirement with testing instructions for PEC and PECS, and

covers power electronic converters and systems in open type design, which are catalog (pre-defined commercially available) power electronic converters and systems or engineered solutions from same.

This document does not cover

LV PEC and PECS covered solely by IEC 62477-1:2022

telecommunications apparatus other than power supplies to such apparatus,

functional safety aspects as covered by, for example, IEC 61508 (Series),

electrical equipment and systems for railways applications and electric vehicles, and

power electronic converters and systems in open type design, which are – in their major part – dimensioned, designed and constructed according to the user’s individual requirements and specifications and follow power installation standards, for example IEC 61936-1:2021 and IEC 61936-2:2023.