{"id":842,"date":"2023-12-18T15:07:02","date_gmt":"2023-12-18T07:07:02","guid":{"rendered":"https:\/\/www.britecelectric.com\/?post_type=blog&#038;p=842"},"modified":"2024-09-05T16:32:09","modified_gmt":"2024-09-05T08:32:09","slug":"standards-for-low-voltage-surge-protective-devices-components","status":"publish","type":"blog","link":"https:\/\/www.britecelectric.com\/it\/blog\/standards-for-low-voltage-surge-protective-devices-components\/","title":{"rendered":"Standard per i componenti dei dispositivi di protezione contro le sovratensioni a bassa tensione"},"content":{"rendered":"<strong>CEI 61643-311:2013\u00a0<\/strong>\r\n<strong>Componenti per dispositivi di protezione da sovratensione a bassa tensione \u2013 Parte 311: Requisiti prestazionali e circuiti di prova per tubi a scarica di gas (GDT)<\/strong>\r\n\r\nLa norma IEC 61643-311:2013 \u00e8 applicabile ai tubi a scarica di gas (GDT) utilizzati per la protezione da sovratensione nelle reti di telecomunicazione, segnalamento e distribuzione di energia a bassa tensione con tensioni di sistema nominali fino a 1 000 V (r.m.s.) c.a. e 1 500 V c.c.. Si definiscono uno o pi\u00f9 interstizi con due o tre elettrodi metallici chiusi ermeticamente in modo che la miscela di gas e la pressione siano sotto controllo. Sono progettati per proteggere l'apparato o il personale, o entrambi, da tensioni transitorie elevate. QuestoLo standard contiene una serie di criteri di prova, metodi di prova e circuiti di prova per determinare le caratteristiche elettriche dei GDT aventi due o tre elettrodi. Questo standard non specifica i requisiti applicabili ai dispositivi di protezione da sovratensione completi, n\u00e9 specifica i requisiti totali per i GDT utilizzati nei dispositivi elettronici, dove il coordinamento preciso tra le prestazioni del GDT e la capacit\u00e0 di resistenza del dispositivo di protezione da sovratensione \u00e8 estremamente critico. Questa seconda edizione della norma IEC 61643-311annulla e sostituisce la prima edizione pubblicata nel 2001. Costituisce una revisione tecnica. Modifiche specifiche rispetto all'edizione precedente sono: Aggiunta di valori prestazionali. Parole chiave: tubi a scarica di gas (GDT), protezione da sovratensione nelle telecomunicazioni, reti di segnalamento e di distribuzione elettrica a bassa tensione, tensioni nominali di sistema fino a 1 000 V (r.m.s.) c.a. e 1 500 V c.c.\r\n\r\n<strong>CEI 61643-312:2013\u00a0<\/strong>\r\n<strong>Componenti per dispositivi di protezione da sovratensione a bassa tensione \u2013 Parte 312: Principi di selezione e applicazione per tubi a scarica di gas<\/strong>\r\n\r\nLa norma IEC 61643-312:2013 \u00e8 applicabile ai tubi a scarica di gas (GDT) utilizzati per la protezione da sovratensione nelle reti di telecomunicazione, segnalamento e distribuzione di energia a bassa tensione con tensioni di sistema nominali fino a 1 000 V (r.m.s.) c.a. e 1 500 V c.c. Si definiscono uno o pi\u00f9 interstizi con due o tre elettrodi metallici sigillati ermeticamente in modo che la miscela di gas e la pressione siano sotto controllo. Sono progettati per proteggere l'apparato o il personale, o entrambi, da tensioni transitorie elevate. QuestoLo standard fornisce informazioni sulle caratteristiche e sulle applicazioni circuitali dei GDT a due o tre elettrodi. Questo standard non specifica i requisiti applicabili ai dispositivi di protezione da sovratensione completi, n\u00e9 specifica i requisiti totali per i GDT utilizzati nei dispositivi elettronici, dove il coordinamento preciso tra le prestazioni del GDT e la capacit\u00e0 di resistenza del dispositivo di protezione da sovratensione \u00e8 estremamente critico. Parole chiave: tubi a scarica di gas (GDT), protezione da sovratensione nelle telecomunicazioni,reti di segnalamento e distribuzione elettrica a bassa tensione, tensioni nominali di sistema fino a 1 000 V (r.m.s.) c.a. e 1 500 V c.c.\r\n\r\n<strong>CEI 61643-321:2001\u00a0<\/strong>\r\n<strong>Componenti per dispositivi di protezione contro le sovratensioni a bassa tensione - Parte 321: Specifiche per diodi anti-valanga (ABD)<\/strong>\r\n\r\n\u00c8 applicabile ai diodi anti-valanga (ABD) che rappresentano un tipo di componente del dispositivo di protezione da sovratensione (di seguito denominato SPDC) utilizzato nella progettazione e costruzione di dispositivi di protezione da sovratensione collegati a sistemi di distribuzione dell'energia a bassa tensione, reti di trasmissione e segnalazione. Le specifiche di test in questo standard si riferiscono a singoli ABD costituiti da due terminali. Tuttavia, pi\u00f9 ABD possono essere assemblati all'interno di un singolo pacchetto definito come una serie di diodi. Ogni diodo all'interno dell'array pu\u00f2 essere testato secondo queste specifiche. Questo standard contiene una serie di criteri di prova per determinare le caratteristiche elettriche dell'ABD. Dai metodi di test standard qui descritti, le caratteristiche prestazionali e le valutazioni dell'ABD possono essere verificate o stabilite per progetti di package specifici.\r\n\r\n<strong>CEI 61643-331:2020\u00a0<\/strong>\r\n<strong>Componenti per la protezione da sovratensione a bassa tensione \u2013 Parte 331: Requisiti prestazionali e metodi di prova per varistori a ossido di metallo (MOV)<\/strong>\r\n\r\nIEC 61643-331:2020 is available as\u00a0IEC 61643-331:2020 RLV\u00a0which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.\r\n\r\nIEC 61643-331:2020 is a test specification for metal oxide varistors (MOV), which are used for applications up to 1 000 V AC or 1 500 V DC in power lines, or telecommunication, or signalling circuits. They are designed to protect apparatus or personnel, or both, from high transient voltages. This document applies to MOVs having two electrodes and hybrid surge protection components. This document also does not apply to mountings and their effect on the MOV\u2019s characteristics. Characteristics given apply solely to the MOV mounted only in the ways described for the tests. This third edition cancels and replaces the second edition published in 2017. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:\r\n\u2013 a Varistor MCOV rating assurance test;\r\n\u2013 an energy rating test (2ms);\r\n\u2013 revised Dielectric strength and insulation resistance tests.\r\n\r\n<strong>CEI 61643-341:2020\u00a0<\/strong>\r\n<strong>Componenti per la protezione da sovratensione a bassa tensione \u2013 Parte 341: Requisiti prestazionali e circuiti di prova per soppressori di sovratensione a tiristori (TSS)<\/strong>\r\n\r\nIEC 61643-341:2020 specifies standard test circuits and methods for thyristor surge suppressor (TSS) components. These surge protective components, SPCs, are specially formulated thyristors designed to limit overvoltages and divert surge currents by clamping and switching actions. These SPCs are used in the construction of surge protective devices (SPDs) and equipment used in Information &amp; Communications Technologies (ICT) networks with voltages up to AC 1 000 V and DC 1 500 V. This document is applicable to gated or non-gated TSS components with third quadrant (-v and \u2013i) characteristics of blocking, conducting or switching. This document contains information on\r\n\u2013 terminology;\r\n\u2013 letter symbols;\r\n\u2013 essential ratings and characteristics;\r\n\u2013 rating verification and characteristic measurement;\r\nThis document does not apply to the conventional three-terminal thyristors as covered by IEC 60747-6. This second edition of IEC 61643-341 cancels and replaces the first edition published in 2001. This edition constitutes a technical revision.This edition includes the following significant technical changes with respect to the previous edition: Addition of performance values.\r\n\r\n<strong>CEI 61643-351:2016\u00a0<\/strong>\r\n<strong>Componenti per dispositivi di protezione da sovratensione a bassa tensione - Parte 351: Requisiti prestazionali e metodi di prova per trasformatori di isolamento da sovratensione per reti di telecomunicazioni e segnalazione (SIT)<\/strong>\r\n\r\nLa norma IEC 61643-351:2016 definisce circuiti di prova e metodi di prova per determinare e verificare i parametri di sovratensione SIT. Vengono forniti i valori prestazionali preferiti per i parametri chiave. I trasformatori di isolamento da sovratensione (SIT) vengono utilizzati per applicazioni di trasformatori di segnale con livelli di segnale fino a 400 V da picco a picco. I SIT sono trasformatori, con o senza schermo dell'avvolgimento interno, con una tensione di tenuta a impulso nominale maggiore della tensione di picco dell'ambiente di sovratensione di modo comune previsto. I SIT lo sonoapplicabile ai componenti per la protezione contro le sovratensioni contro gli effetti indiretti e diretti dei fulmini o di altre sovratensioni transitorie. I SIT vengono utilizzati per mitigare la propagazione delle sovratensioni di modo comune. Questa parte della norma IEC 61643 non copre il funzionamento SIT in condizioni di sovratensione da fulmine in modalit\u00e0 differenziale. Parole chiave: trasformatori di isolamento dalle sovratensioni (SIT)","protected":false},"featured_media":843,"parent":0,"menu_order":156,"template":"","meta":{"_acf_changed":false},"blog_category":[8],"class_list":["post-842","blog","type-blog","status-publish","has-post-thumbnail","hentry","blog_category-company-news"],"acf":{"des":"Components for low-voltage surge protective devices \u2013 Part 311: Performance requirements and test circuits for gas discharge tubes (GDT)","txt":"<strong>IEC 61643-311:2013\u00a0<\/strong>\r\n<strong>Components for low-voltage surge protective devices \u2013 Part 311: Performance requirements and test circuits for gas discharge tubes (GDT)<\/strong>\r\n\r\nIEC 61643-311:2013 is applicable to gas discharge tubes (GDT) used for overvoltage protection in telecommunications, signalling and low-voltage power distribution networks with nominal system voltages up to 1 000 V (r.m.s.) a.c. and 1 500 V d.c..They are defined as a gap, or several gaps with two or three metal electrodes hermetically sealed so that gas mixture and pressure are under control. They are designed to protect apparatus or personnel, or both, from high transient voltages. This standard contains a series of test criteria, test methods and test circuits for determining the electrical characteristics of GDTs having two or three electrodes. This standard does not specify requirements applicable to complete surge protective devices, nor does it specify total requirements for GDTs employed within electronic devices, where precise coordination between GDT performance and surge protective device withstand capability is highly critical. This second edition of IEC 61643-311 cancels and replaces the first edition published in 2001. It constitutes a technical revision. Specific changes with respect to the previous edition are: Addition of performance values. Key words: gas discharge tubes (GDT), overvoltage protection in telecommunications, signalling and low-voltage power distribution networks, nominal system voltages up to 1 000 V (r.m.s.) a.c. and 1 500 V d.c.\r\n\r\n<strong>IEC 61643-312:2013\u00a0<\/strong>\r\n<strong>Components for low-voltage surge protective devices \u2013 Part 312: Selection and application principles for gas discharge tubes<\/strong>\r\n\r\nIEC 61643-312:2013 is applicable to gas discharge tubes (GDT) used for overvoltage protection in telecommunications, signalling and low-voltage power distribution networks with nominal system voltages up to 1 000 V (r.m.s.) a.c. and 1 500 V d.c. They are defined as a gap, or several gaps with two or three metal electrodes hermetically sealed so that gas mixture and pressure are under control. They are designed to protect apparatus or personnel, or both, from high transient voltages. This standard provides information about the characteristics and circuit applications of GDTs having two or three electrodes. This standard does not specify requirements applicable to complete surge protective devices, nor does it specify total requirements for GDTs employed within electronic devices, where precise coordination between GDT performance and surge protective device withstand capability is highly critical. Keywords: gas discharge tubes (GDT), overvoltage protection in telecommunications, signalling and low-voltage power distribution networks, nominal system voltages up to 1 000 V (r.m.s.) a.c. and 1 500 V d.c.\r\n\r\n<strong>IEC 61643-321:2001\u00a0<\/strong>\r\n<strong>Components for low-voltage surge protective devices \u2013 Part 321: Specifications for avalanche breakdown diode (ABD)<\/strong>\r\n\r\nIs applicable to avalanche breakdown diodes (ABDs) which represent one type of surge protective device component (hereinafter referred to as SPDC) used in the design and construction of surge protective devices connected to low-voltage power distribution systems, transmission, and signalling networks. Test specifications in this standard are for single ABDs consisting of two terminals. However, multiple ABDs may be assembled within a single package defined as a diode array. Each diode within the array can be tested to this specification. This standard contains a series of test criteria for determining the electrical characteristics of the ABD. From the standard test methods described herein, the performance characteristics and ratings of the ABD can be verified or established for specific packaged designs.\r\n\r\n<strong>IEC 61643-331:2020\u00a0<\/strong>\r\n<strong>Components for low-voltage surge protection \u2013 Part 331: Performance requirements and test methods for metal oxide varistors (MOV)<\/strong>\r\n\r\nIEC 61643-331:2020 is available as\u00a0IEC 61643-331:2020 RLV\u00a0which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.\r\n\r\nIEC 61643-331:2020 is a test specification for metal oxide varistors (MOV), which are used for applications up to 1 000 V AC or 1 500 V DC in power lines, or telecommunication, or signalling circuits. They are designed to protect apparatus or personnel, or both, from high transient voltages. This document applies to MOVs having two electrodes and hybrid surge protection components. This document also does not apply to mountings and their effect on the MOV\u2019s characteristics. Characteristics given apply solely to the MOV mounted only in the ways described for the tests. This third edition cancels and replaces the second edition published in 2017. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:\r\n\u2013 a Varistor MCOV rating assurance test;\r\n\u2013 an energy rating test (2ms);\r\n\u2013 revised Dielectric strength and insulation resistance tests.\r\n\r\n<strong>IEC 61643-341:2020\u00a0<\/strong>\r\n<strong>Components for low-voltage surge protection \u2013 Part 341: Performance requirements and test circuits for thyristor surge suppressors (TSS)<\/strong>\r\n\r\nIEC 61643-341:2020 specifies standard test circuits and methods for thyristor surge suppressor (TSS) components. These surge protective components, SPCs, are specially formulated thyristors designed to limit overvoltages and divert surge currents by clamping and switching actions. These SPCs are used in the construction of surge protective devices (SPDs) and equipment used in Information &amp; Communications Technologies (ICT) networks with voltages up to AC 1 000 V and DC 1 500 V. This document is applicable to gated or non-gated TSS components with third quadrant (-v and \u2013i) characteristics of blocking, conducting or switching. This document contains information on\r\n\u2013 terminology;\r\n\u2013 letter symbols;\r\n\u2013 essential ratings and characteristics;\r\n\u2013 rating verification and characteristic measurement;\r\nThis document does not apply to the conventional three-terminal thyristors as covered by IEC 60747-6. This second edition of IEC 61643-341 cancels and replaces the first edition published in 2001. This edition constitutes a technical revision.This edition includes the following significant technical changes with respect to the previous edition: Addition of performance values.\r\n\r\n<strong>IEC 61643-351:2016\u00a0<\/strong>\r\n<strong>Components for low-voltage surge protective devices \u2013 Part 351: Performance requirements and test methods for telecommunications and signalling network surge isolation transformers (SIT)<\/strong>\r\n\r\nIEC 61643-351:2016 defines test circuits and test methods for determining and verifying the SIT surge parameters. Preferred performance values for key parameters are given. Surge isolation transformers (SITs) are used for signal transformer applications with signal levels up to 400 V peak to peak. SITs are transformers, with or without an internal-winding screen, with a rated impulse withstand voltage greater than the peak voltage of the expected common-mode surge environment. SITs are applicable to components for surge protection against indirect and direct effects of lightning or other transient overvoltage. SITs are used to mitigate the onward propagation of common-mode voltage surges. This part of IEC 61643 does not cover SIT operation under differential-mode lightning surge conditions. Keywords: Surge isolation transformers (SITs)"},"_links":{"self":[{"href":"https:\/\/www.britecelectric.com\/it\/wp-json\/wp\/v2\/blog\/842","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.britecelectric.com\/it\/wp-json\/wp\/v2\/blog"}],"about":[{"href":"https:\/\/www.britecelectric.com\/it\/wp-json\/wp\/v2\/types\/blog"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.britecelectric.com\/it\/wp-json\/wp\/v2\/media\/843"}],"wp:attachment":[{"href":"https:\/\/www.britecelectric.com\/it\/wp-json\/wp\/v2\/media?parent=842"}],"wp:term":[{"taxonomy":"blog_category","embeddable":true,"href":"https:\/\/www.britecelectric.com\/it\/wp-json\/wp\/v2\/blog_category?post=842"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}