CENELEC
Project
| Reference | FprEN 61643-312:2013 |
|---|---|
| Title | Components for low-voltage surge protective devices - Part 312: Selection and application principles for gas discharge tubes |
| Project Number | 22797 |
| Abstract/Scope | IEC 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. |
| Status |
Approval stage
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Status
| Current Stage code | 5060 |
|---|---|
| Current Stage code date | 2013-03-25 |
| Current Stage code deadline | 2013-04-15 |
| Deadline date for vote |
Legal
| Directive(s) | EMC related (2004/108/EC) |
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| Mandate(s) | |
| Order Voucher |
Details
| IEC Technical Body | IEC/SC 37B |
|---|---|
| Reference Document | IEC 61643-312:2013 (EQV) |
| ICS | 31.100 - Electronic tubes 33.040.99 - Other equipment for telecommunication systems |
| Keywords | Surge; Protective device;Gas; Discharge tube |
| Note | 2013-05-02 - Publication editing allocated to cpalagi@cencenelec.eu Future EN 61643-311 (PR=22795) and EN 61643-312 (PR=22797) will supersede EN 61643-311:2001 * 37B/107/RVC established on 2011-04-15: FDIS decided * Former prEN 61643-313 renumbered part 312 following merge of former part 312 into part 311 |
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| Special National Condition(s) |
Environment
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Clause
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Categories - Aspects
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Product Life Cycle
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Information
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History
Implementation Dates
| date of Ratification (DOR) (1) | |
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| date of Availability (DAV) (2) | |
| date of Announcement (DOA) (3) | dor + 3 months |
| date of Publication (DOP) (4) | dor + 9 months |
| date of Withdrawal (DOW) (5) | dor + 36 months |
Relations
| Supersedes | EN 61643-311:2001 |
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| Superseded by | |
| Normative reference (6) |
EN 60068-2-1
EN 60068-2-20 EN 60068-2-21 IEC 61643-311 |
(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved
(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat
(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level
(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement
(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn
(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.
