ДСТУ EN 60137:2022 Изолированные вводы для переменного напряжения свыше 1000 В (EN 60137:2017, IDT; IEC 60137:2017, IDT)

ПІДТВЕРДЖУВАЛЬНЕ ПОВІДОМЛЕННЯ

Державне підприємство «Український науково-дослідний і
навчальний центр проблем стандартизації,
сертифікації та якості» (ДП «УкрНДНЦ»)

Наказ від 28.12.2022 № 285

EN 60137:2017
Insulated bushings for alternating voltages above 1 000 V

прийнято як національний стандарт
методом «підтвердження» за позначенням

ДСТУ EN 60137:2022
(EN 60137:2017, IDT; IEC 60137:2017, IDT)
Ізольовані вводи для змінної напруги понад 1000 В

З наданням чинності від 2023-12-31

Відповідає офіційному тексту

З питань придбання офіційного видання звертайтесь до
національного органу стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)

CONTENTS

FOREWORD

INTRODUCTION

1 Scope

2 Normative references

3 Terms and definitions

4 Ratings

4.1 Rated highest voltage for equipment

4.2 Rated current

4.3 Rated thermal short-time current

4.4 Rated dynamic current

4.5 Minimum withstand values of cantilever load

4.6 Angle of mounting

4.7 Minimum nominal creepage distance

4.8 Temperature limits and temperature rise

4.9 Insulation levels

4.10 Test tap on transformer bushings

5 Operating conditions

5.1 Temporary overvoltages

5.2 Altitude

5.3 Temperature of ambient air and immersion media

5.4 Seismic conditions

5.5 Very fast transients (VFT)

5.6 Transformer insulating liquid

6 Ordering information and markings

6.1 Enumeration of characteristics

6.2 Markings

7 Test requirements

7.1 General requirements

7.2 Test classification

7.3 Condition of bushings during dielectric and thermal tests

8 Type tests

8.1 General

8.2 Dry or wet power-frequency voltage withstand test

8.3 Long duration power-frequency voltage withstand test (ACLD).

8.4 Dry lightning impulse voltage withstand test

8.5 Dry or wet switching impulse voltage withstand test

8.6 Thermal stability test

8.7 Electromagnetic compatibility tests (EMC)

8.8 Temperature rise test

8.9 Verification of thermal short-time current withstand

8.10 Cantilever load withstand test

8.11 Tightness test on liquid-filled, compound-filled and liquid-insulated bushings

8.12 Internal pressure test on gas-filled, gas-insulated and gas-impregnated bushings

8.13 External pressure test on partly or completely gas-immersed bushings

8.14 Verification of dimensions

9 Routine tests

9.1 General

9.2 Measurement of dielectric dissipation factor (tan 5) and capacitance at ambient temperature

9.3 Dry lightning impulse voltage withstand test

9.4 Dry power-frequency voltage withstand test

9.5 Measurement of partial discharge quantity

9.6 Tests of tap insulation

9.7 Internal pressure test on gas-filled, gas-insulated and gas-impregnated bushings

9.8 Tightness test on liquid-filled, compound-filled and liquid-insulated bushings

9.9 Tightness test on gas-filled, gas-insulated and gas-impregnated bushings

9.10 Tightness test at the flange or other fixing device

9.11 Visual inspection and dimensional check

10 Requirements and tests for non-capacitance graded bushings of rated highest voltages for equipment up to and including 52 kV

10.1 General

10.2 Temperature requirements

10.3 Level of immersion medium

10.4 Markings

10.5 Test requirements

11 Recommendations for transport, storage, erection, operation and maintenance

11.2 Conditions during transport, storage and installation

11.3 Installation

11.4 Unpacking and lifting

11.5 Assembly

11.6 Operation

11.7 Maintenance

12 Safety

12.1 General

12.2 Electrical aspects

12.3 Mechanical aspects

12.4 Thermal aspects

13 Environmental aspects

Annex A (informative) Determination of the hottest spot in bushings with conductors embedded in the insulation material

Bibliography