ДСТУ EN IEC 60664-1:2022 Координация изоляции оборудования в системах электроснабжения низкого напряжения. Часть 1. Принципы, требования и испытания (EN IEC 60664-1:2020, IDT; IEC 60664-1:2020, IDT)

ДСТУ EN IEC 60664-1:2022
(EN IEC 60664-1:2020, IDT; IEC 60664-1:2020, IDT)

Координація ізоляції обладнання в системах електропостачання

 низької напруги. Частина 1. Принципи, вимоги та випробування

 
   
 
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)

Contents

Foreword

1 Scope

2 Normative references

3 Terms, definitions and abbreviated terms

3.1 Terms and definitions

3.2 Abbreviated terms

4 Basic technical characteristics for insulation coordination

4.1 General

4.2 Voltages

4.3 Overvoltage categories

4.4 Frequency

4.5 Pollution

4.6 Insulating material

4.7 Environmental aspects

4.8 Duration of voltage stress

4.9 Electrical field distribution

5 Design for insulation coordination

5.1 General

5.2 Dimensioning of clearances.

5.3 Dimensioning of creepage distances

5.4 Requirements for design of solid insulation

6 Tests and measurements

6.1 General

6.2 Verification of clearances

6.3 Verification of creepage distances

6.4 Verification of solid insulation

6.5 Performing dielectric tests on complete equipment

6.6 Other tests

6.7 Measurement of the attenuation of the transient overvoltages

6.8 Measurement of clearances and creepage distances

Annex A (informative) Basic data on withstand characteristics of clearances

Annex В (informative) Nominal voltages of mains supply for different modes of overvoltage control

Annex C (normative) Partial discharge test methods

Annex D (informative) Additional information on partial discharge test methods

Annex E (informative) Comparison of creepage distances specified in Table F.5 and clearances in Table A.1

Annex F (normative) Tables

Annex G (informative) Determination of clearance distances according to 5.2

Annex H (informative) Determination of creepage distances according to 5.3

Bibliography