ДСТУ EN 50522:2022 Заземлення силових установок понад 1 кВ змінного струму (EN 50522:2022, 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 50522:2010

Earthing of power installations exceeding 1 kV a.c.

прийнято як національний стандарт
методом «підтвердження» за позначенням

ДСТУ EN 50522:2022
(EN 50522:2010, IDT)

Заземлення силових установок понад 1 кВ змінного струму

З наданням чинності від 2023-12-31

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

Contents

1 Scope

2 Normative references

3 Terms and definitions

3.1 General definitions

3.2 Definitions concerning installations

3.3 Definitions concerning safety measures against electric shock

3.4 Definitions concerning earthing

4 Fundamental requirements

4.1 General requirements

4.2 Electrical requirements

4.3 Safety criteria

4.4 Functional requirements

5 Design of earthing systems

5.1 General

5.2 Dimensioning with respect to corrosion and mechanical strength

5.3 Dimensioning with respect to thermal strength

5.4 Dimensioning with regard to touch voltages

6 Measures to avoid transferred potential

6.1 Transferred potential from High voltage systems to Low voltage systems

6.2 Transferred potentials to telecommunication and other systems

7 Construction of earthing systems

7.1 Installation of earth electrodes and earthing conductors

7.2 Lightning and transients

7.3 Measures for earthing on equipment and installations

8 Measurements

9 Maintainability

9.1 Inspections

9.2 Measurements

Annex A (normative) Method of calculating permissible touch voltages

Annex B (normative) Touch voltage and body current

Annex C (normative) Type and minimum dimensions of earth electrode materials ensuring mechanical strength and corrosion resistance

Annex D (normative) Current rating calculation of earthing conductors and earth electrodes

Annex E (normative) Description of the recognized specified measures M

Annex F (normative) Measures on earthing systems to reduce the effects of high frequency interference

Annex G (normative) Detailed measures for earthing of equipment and installations

Annex H (normative) Measuring touch voltages

Annex I (informative) Reduction factors related to earth wires of overhead lines and metal sheaths of underground cables

Annex J (informative) Basis for the design of earthing systems

Annex K (informative) Installing the earth electrodes and earthing conductors

Annex L (informative) Measurements for and on earthing systems

Annex M (normative) Details on site inspection and documentation of earthing systems

Annex N (informative) The use of reinforcing bars in concrete for earthing purpose

Annex O (informative) Global Earthing System

Annex P (normative) Special national conditions

Annex Q (informative) A-deviations

National Annex NA (informative) UK earthing safety limits and design methodology

National Annex NB (informative) Probabilistic based risk assessment of earthing systems

National Annex NC (informative) Periodic inspection and testing