ДСТУ EN 61643-21:2015 Пристрої захисту від імпульсних перенапруг низьковольтні. Частина 21. Пристрої захисту від імпульсних перенапруг, підключені до телекомунікаційних мереж та мереж сигналізації. Вимоги до...

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EN 61643-21:2001

Low voltage surge protective devices.
Part 21: Surge protective devices connected to telecommunications and signalling networks.
Performance requirements and testing methods

прийнято як національний стандарт
методом «підтвердження» за позначенням
 

ДСТУ EN 61643-21:2015
(EN 61643-21:2001, IDT)

Пристрої захисту від імпульсних перенапруг низьковольтні. Частина 21. Пристрої
захисту від імпульсних перенапруг, підключені до телекомунікаційних мереж та мереж
сигналізації. Вимоги до робочих характеристик та методи випробування

З наданням чинності від 2016–01–01

CONTENTS

INTRODUCTION

1 General

1.1 Scope

1.2 SPD configurations

1.3 Use of this standard

2 Normative references

3 Definitions

4 Service and test conditions

4.1 Service conditions

4.1.1 Normal service conditions

4.1.2 Abnormal service conditions

4.2 Test temperature and humidity

4.3 SPD testing

4.4 Waveform tolerances

5 Requirements

5.1 General requirements

5.1.1 Identification and documentation

5.1.2 Marking

5.2 Electrical requirements

5.2.1 Voltage-limiting requirements

5.2.2 Current-limiting requirements

5.2.3 Transmission requirements

5.3 Mechanical requirements

5.3.1 Terminals and connectors

5.3.2 Mechanical strength (mounting)

5.3.3 Resistance to ingress of solid objects and to harmful ingress of water

5.3.4 Protection against direct contact

5.3.5 Fire resistance

5.4 Environmental requirements

5.4.1 High temperature and humidity endurance

5.4.2 Environmental cycling with impulse surges

5.4.3 Environmental cycling with a.c. surges

6 Type test

6.1 General tests

6.1.1 Identification and documentation

6.1.2 Marking

6.2 Electrical tests

6.2.1 Voltage-limiting tests

6.2.2 Current-limiting tests

6.2.3 Transmission tests

6.3 Mechanical tests

6.3.1 Terminals and connectors

6.3.2 Mechanical strength (mounting)

6.3.3 Resistance to ingress of solid objects and to harmful ingress of water

6.3.4 Protection against direct contact

6.3.5 Fire resistance

6.4 Environmental tests

6.4.1 High temperature and humidity endurance

6.4.2 Environmental cycling with impulse surges

6.4.3 Environmental cycling with a.c. surges

6.5 Acceptance tests

Annex A (informative) Devices with current-limiting components only

Annex В (informative) Selection of applicable transmission tests

Annex C (normative) Test sequence

Annex ZA (normative) Normative references to international publications with their corresponding European publications

Bibliography

Figure 1 - SPD configurations

Figure 2 - Test circuits for impulse reset time

Figure 3 - Test circuits for a.c. durability and overstressed fault mode

Figure 4 - Test circuits for impulse durability and overstressed fault mode

Figure 5 - Test circuits for rated current, series resistance, response time, current reset time, maximum interrupting voltage and operating duty test

Figure 6 - Test circuits for a.c. durability

Figure 7 - Test circuits for impulse durability

Figure 8 - Test circuits for insertion loss

Figure 9 - Test circuit for return loss

Figure 10 - Test circuits for longitudinal balance

Figure 11 - Test circuit for bit error ratio test

Figure 12 - Test circuit for near-end crosstalk

Figure 13 - Test circuits for high temperature/humidity endurance and environmental cycling

Figure 14 - Environmental cycling schedule A with RH > 90 %

Figure 15 - Environmental cycling В

Figure A.1 - Configurations of devices with current-limiting component(s) only

Table 1 - General SPD requirements

Table 2 - Waveform tolerances

Table 3 - Voltage and current waveforms for impulse-limiting voltage

Table 4 - Source voltages and currents for impulse reset test

Table 5 - Preferred values of currents for a.c. durability test

Table 6 - Test currents for response time

Table 7 - Preferred values of current for operating duty tests

Table 8 - Preferred values of a.c. test currents

Table 9 - Preferred values of impulse current

Table 10 - Standard parameters for figure 8

Table 11 - Impedance values for longitudinal balance test

Table 12 - Test times for BER test

Table 13 - Connectable cross-sectional areas of copper conductors for screw-type terminals or screwless-type terminals

Table 14 - Pulling force (screwless terminals)

Table 15 - Preferred values of test-time duration for high temperature and humidity endurance

Table 16 - Preferred values of temperature and duration for environmental cycling tests

Table B.1 - Applicable SPD tests for several transmission systems

Table C.1 - Testing sequence for table 1