SIST EN 61643-21:2002
(Main)Low voltage surge protective devices -- Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods
Low voltage surge protective devices -- Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods
Is applicable to devices for surge protection of telecommunications and signalling networks against indirect and direct effects of lightning or other transient overvoltages. The purpose of these SPDs is to protect modern electronic equipment connected to telecommunications and signalling networks with nominal system voltags up to 1 000 V (r.m.s.) a.c. and 1 500 V d.c.
Überspannungsschutzgeräte für Niederspannung -- Teil 21: Überspannungsschutzgeräte für den Einsatz in Telekommunikations- und signalverarbeitenden Netzwerken - Leistungsanforderungen und Prüfverfahren
Parafoudres basse-tension -- Partie 21: Parafoudres connectés aux réseaux de signaux et de télécommunications - Prescriptions de fonctionnement et méthodes d'essais
Est applicable aux dispositifs de protection (parafoudres) contre les effets directs et indirects de la foudre ou des autres surtensions transitoires, pour les réseaux de télécommunications et de transmission de signaux. Ces parafoudres sont destinés à protéger les équipements électroniques modernes, connectés aux réseaux de télécommunications et de transmission de signaux, ayant une tension nominale de fontionnement jusqu'à 1 000 V (efficace) en courant alternatif et 1 500 V en courant continu.
Nizkonapetostne naprave za zaščito pred prenapetostnimi udari - 21. del: Naprave priključene na telekomunikacijska in signalna omrežja- Zahtevane lastnosti in preskusne metode (IEC 61643-21:2000 + popravek mar. 2001)
Uporablja se za naprave za zaščito telekomunikacijskih in signalnih omrežij pred prenapetostnimi udari v primeru posrednih in neposrednih učinkov strele ali drugih prehodnih prenapetosti.
General Information
- Status
- Published
- Publication Date
- 31-Oct-2002
- Technical Committee
- POD - Surge aresters
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-Nov-2002
- Due Date
- 01-Nov-2002
- Completion Date
- 01-Nov-2002
Relations
- Effective Date
- 01-Jan-2014
- Effective Date
- 01-Oct-2009
- Effective Date
- 21-Sep-2021
Overview - EN 61643-21:2001 (CLC)
EN 61643-21:2001 (based on IEC 61643-21:2000 + corrigendum 2001) defines performance requirements and testing methods for low-voltage surge protective devices (SPDs) intended for connection to telecommunications and signalling networks. The standard applies to SPDs designed to protect modern electronic equipment from the indirect and direct effects of lightning and other transient overvoltages for systems with nominal voltages up to 1 000 V (r.m.s.) AC and 1 500 V DC.
Key topics and technical requirements
The standard covers the functional and test-oriented aspects needed to demonstrate SPD performance and safety. Key technical topics include:
- Scope and application for SPDs used in telecom and signalling networks protecting electronic equipment from transient overvoltages.
- Performance requirements that SPDs must meet to ensure reliable protection under surge conditions.
- Test methods and procedures, referencing established test techniques (for example surge immunity and impulse test methods referenced from IEC/EN standards).
- Environmental and mechanical tests (damp heat, enclosure protection / IP ratings, and fire hazard tests) to verify durability in service conditions.
- Electrical characteristics and verification (e.g., voltage withstand, surge handling behavior and continuity after surges) - described in terms of required test sequences rather than bespoke product parameters.
- Normative and informative annexes: the published European version includes normative annexes (including Annex ZA and C) and informative annexes that give explanatory guidance.
Practical applications and users
EN 61643-21 is practical for:
- Manufacturers of surge protection devices who need to design, test and certify SPDs for telecom and signalling use.
- Test laboratories performing type testing and conformity assessment against European/IEC criteria.
- Telecommunications operators and system integrators specifying protective devices to safeguard equipment and networks from lightning and transient events.
- OEMs and installers responsible for selecting compliant SPDs for systems up to 1 000 V AC / 1 500 V DC.
- Regulatory and safety authorities requiring reference standards for procurement and compliance.
Related standards
EN 61643-21 cross-references several electrotechnical standards commonly used alongside SPDs:
- EN/IEC 61643-1 (SPDs for low-voltage power systems)
- IEC/EN 61000-4-5 (surge immunity test)
- IEC 60060-1, IEC 60529 (IP code), and relevant fire and environmental test standards
- ITU-T recommendations relevant to telecom protection
This standard is essential when specifying, testing, or certifying surge protective devices for telecommunications and signalling networks, and it helps ensure interoperability, safety and reliable protection against transient overvoltages.
Frequently Asked Questions
SIST EN 61643-21:2002 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Low voltage surge protective devices -- Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods". This standard covers: Is applicable to devices for surge protection of telecommunications and signalling networks against indirect and direct effects of lightning or other transient overvoltages. The purpose of these SPDs is to protect modern electronic equipment connected to telecommunications and signalling networks with nominal system voltags up to 1 000 V (r.m.s.) a.c. and 1 500 V d.c.
Is applicable to devices for surge protection of telecommunications and signalling networks against indirect and direct effects of lightning or other transient overvoltages. The purpose of these SPDs is to protect modern electronic equipment connected to telecommunications and signalling networks with nominal system voltags up to 1 000 V (r.m.s.) a.c. and 1 500 V d.c.
SIST EN 61643-21:2002 is classified under the following ICS (International Classification for Standards) categories: 29.120.50 - Fuses and other overcurrent protection devices; 29.240.10 - Substations. Surge arresters. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 61643-21:2002 has the following relationships with other standards: It is inter standard links to SIST EN 61643-21:2002/A2:2014, SIST EN 61643-21:2002/A1:2009, kSIST FprEN IEC 61643-21:2025. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN 61643-21:2002 is associated with the following European legislation: EU Directives/Regulations: 2006/95/EC, 2010-01-3290, 2014/35/EU, 73/23/EEC. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
You can purchase SIST EN 61643-21:2002 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.
Standards Content (Sample)
SLOVENSKI SIST EN 61643-21:2002
prva izdaja
STANDARD
november 2002
Nizkonapetostne naprave za zaščito pred prenapetostnimi udari - 21. del:
Naprave priključene na telekomunikacijska in signalna omrežja- Zahtevane
lastnosti in preskusne metode (IEC 61643-21:2000 + popravek mar. 2001)
Low voltage surge protective devices - Part 21: Surge protective devices connected
to telecommunications and signalling networks - Performance requirements and
testing methods
ICS 29.120.50; 29.240.10 Referenčna številka
© Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno
EUROPEAN STANDARD EN 61643-21
NORME EUROPÉENNE
EUROPÄISCHE NORM July 2001
ICS 29.240; 29.240.10
English version
Low voltage surge protective devices
Part 21: Surge protective devices connected to
telecommunications and signalling networks -
Performance requirements and testing methods
(IEC 61643-21:2000 + corrigendum 2001)
Parafoudres basse-tension Überspannungsschutzgeräte für
Partie 21: Parafoudres connectés Niederspannung
aux réseaux de signaux et de Teil 21: Überspannungsschutzgeräte für
télécommunications - den Einsatz in Telekommunikations- und
Prescriptions de fonctionnement et signalverarbeitenden Netzwerken -
méthodes d'essais Leistungsanforderungen und
(CEI 61643-21:2000 + corrigendum 2001) Prüfverfahren
(IEC 61643-21:2000 + Corrigendum 2001)
This European Standard was approved by CENELEC on 2000-11-01. CENELEC members are bound to
comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and
notified to the Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,
Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway,
Portugal, Spain, Sweden, Switzerland and United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2001 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61643-21:2001 E
Foreword
The text of document 37A/101/FDIS, future edition 1 of IEC 61643-21, prepared by SC 37A,
Low-voltage surge protective devices, of IEC TC 37, Surge arresters, was submitted to the IEC-
CENELEC parallel vote and was approved by CENELEC as EN 61643-21 on 2000-11-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2002-02-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2003-11-01
Annexes designated "normative" are pa
...
기사 제목: SIST EN 61643-21:2002 - 저전압 서지 보호장치 -- 제 21 파트: 통신 및 신호망과 연결된 서지 보호 장치 - 성능 요구 사항과 시험 방법 기사 내용: 이 기사는 번개나 기타 일시적 과전압의 간접 및 직접 영향으로부터 통신 및 신호망을 보호하기 위한 서지 보호장치에 적용됩니다.
記事タイトル：SIST EN 61643-21:2002 - 低電圧 サージ保護装置 -- パート21：通信および信号ネットワークに接続されたサージ保護装置- 性能要件および試験方法 記事内容：この記事は、通信および信号ネットワークを雷やその他の一時的な過電圧から保護するためのサージ保護装置に適用されます。
The article discusses the SIST EN 61643-21:2002 standard, which applies to surge protective devices used to protect telecommunications and signalling networks from the effects of lightning and other transient overvoltages.
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