JIS C 5381-21:2014
Current
The latest, up-to-date edition.
Low Voltage Surge Protective Devices - Part 21: Surge Protective Devices Connected To Telecommunications And Signalling Networks - Performance Requirements And Testing Methods
Hardcopy
Japanese
20-06-2014
Introduction1 General 1.1 Scope 1.2 SPD configurations 1.3 Use of this Standard2 Normative references3 Definitions 3.1 model number 3.2 preferred values 3.3 overstressed fault mode 3.4 protection 3.5 current response time 3.6 maximum continuous operating voltage U[c] 3.7 maximum interrupting voltage 3.8 surge protective device (SPD) 3.9 voltage limiting 3.10 current limiting 3.11 non-resettable current limiting 3.12 resettable current limiting 3.13 self-resetting current limiting 3.14 voltage-clamping-type SPD 3.15 voltage-switching-type spd 3.16 voltage protection level U[p] 3.17 multi-stage SPD 3.18 blind spot 3.19 a.c. durability 3.20 impulse durability 3.21 current reset time 3.22 rated current 3.23 insulation resistance 3.24 return loss 3.25 bit error ratio (BER) 3.26 insertion loss 3.27 near-end crosstalk (NEXT) 3.28 longitudinal balance (analogue voice frequency circuits) 3.29 longitudinal balance (data transmission) 3.30 longitudinal balance (communication and control cables) 3.31 longitudinal balance (telecommunications)4 Service and test conditions 4.1 Service conditions 4.2 Test temperature and humidity 4.3 SPD testing 4.4 Waveform tolerances5 Requirements 5.1 General requirements 5.2 Electrical requirements 5.3 Mechanical requirements 5.4 Environmental requirements6 Type tests 6.1 General tests 6.2 Electrical tests 6.3 Mechanical tests 6.4 Environmental tests 6.5 Acceptance testsAnnex A (informative) Devices with current-limiting components onlyAnnex B (informative) Selection of applicable transmission testsAnnex C (normative) Test sequenceBibliography
Gives performance requirements and testing methods of surge protective devices connected to telecommunications and signalling networks with nominal system voltages up to 1000 V (r.m.s.) a.c. and 1500 V d.c. SPDs limit surge voltage caused by indirect and direct effects of lightning or other transient overvoltages and contain one or more non-linear components to divert surge currents.
| DocumentType |
Standard
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| Pages |
0
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| PublisherName |
Japanese Standards Association
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| Status |
Current
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| Supersedes |
2014 [20/06/2014]2004(R2009) [01/10/2009]2004 [20/03/2004]
| JIS C 1400-24:2023 | Wind energy generation systems -- Part 24: Lightning protection |
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