ДСТУ EN IEC 63112:2022 Фотоэлектрические (PV) массивы. Оборудование для защиты от замыканий на землю. Безопасность и связанные с безопасностью функции (EN IEC 63112:2021, IDT; IEC 63112:2021, IDT)

ДСТУ EN IEC 63112:2022
(EN IEC 63112:2021, IDT; IEC 63112:2021, IDT)

Фотоелектричні (PV) масиви. Обладнання для захисту від замикань на землю. Безпека та пов`язані з безпекою функції

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

Contents

FOREWORD

INTRODUCTION

1 Scope

2 Normative references

3 Terms, definitions, symbols and abbreviated terms

4 Requirements relating PV-EFP to system topology

4.1 General

4.2 PV-EFP functions for different system topologies

4.3 PV-EFPE control over host system operation

4.3.1 General

4.3.2 Types of PV-EFPE requiring host system control

4.3.3 Methods of control of the host system operation

4.4 Disconnection under fault conditions

4.4.1 General

4.4.2 Disconnecting means

4.4.3 High impedance connections

4.4.4 Indirect disconnection

4.5 Systems with more than one sub-array (informative)

4.5.1 General

4.5.2 Isolated sub-arrays

4.5.3 Non-isolated sub-arrays

5 PV array to earth insulation monitoring

5.1 General

5.2 Array insulation monitoring requirements

5.3 Array insulation fault response requirements

5.4 Provisions for reset

5.5 Insulation monitoring function adjustability

6 PV array residual or earth current monitoring

6.1 General

6.2 Required PV-EFP current monitoring functions

6.3 Shock hazard current monitoring

6.3.1 General

6.3.2 Limits and response

6.3.3 Provisions for reset

6.3.4 Shock hazard current monitoring - adjustability

6.3.5 Fault tolerance of shock hazard current monitoring

6.4 Fire hazard (continuous) current monitoring by electronic means

6.4.1 Overview

6.4.2 General

6.4.3 Settings and response

6.4.4 Provisions for reset

6.4.5 Fire hazard current monitoring function adjustability

6.4.6 Fault tolerance of fire hazard current monitoring by electronic means

6.5 Fire hazard current monitoring by an overcurrent protective device in the functional earthing conductor

6.5.1 Overview

6.5.2 General

6.5.3 Ratings

6.5.4 Response

6.5.5 Provisions for reset

6.5.6 Overcurrent protective device adjustability and replacement

7 Construction

7.1 General

7.2 Environmental considerations

8 PV-EFP Fault Indication

8.1 General

8.2 Integral fault indication

8.3 Remote fault indication

8.3.1 General

8.3.2 Observability

8.3.3 Remote fault indication means

8.4 Resetting of the fault indication

9 Testing

9.1 General requirements for the tests in 9.2 through 9.5

9.1.1 Tests required

9.1.2 DC sources

9.1.3 AC sources

9.1.4 Laboratory conditions

9.1.5 Monitoring the PV-EFPE means of control of the host system

9.1.6 Control of the PV-EFPE state

9.1.7 Test setup

9.2 Tests for PV array insulation monitoring functions

9.2.1 Setup

9.2.2 Sequence of tests

9.2.3 Test for Riso above setting during system start-up

9.2.4 Test for Riso below setting during system start-up

9.2.5 Test for Riso dropping below setting during operation

9.2.6 Test for short circuit earth fault during system start-up

9.2.7 Test for short circuit earth fault during operation – non-earth-referenced PV arrays

9.2.8 Tests for PV array mid-point fault detection

9.2.9 24 h timer test

9.3 Tests for residual or earth current monitoring functions:

9.3.1 Setup

9.3.2 Sequence of tests

9.3.3 Tests for shock hazard current monitoring

9.3.4 Tests for fire hazard current monitoring by electronic means

9.3.5 Fault-tolerance of shock hazard current monitoring and fire hazard current monitoring by electronic means

9.3.6 Tests for fire hazard current monitoring by an overcurrent protective device in the functional earthing conductor

9.4 Test for short circuit earth fault during operation

9.4.1 General

9.4.2 Short circuit earth fault test procedure

9.4.3 Short circuit earth fault test pass/fail criteria

9.5 Tests for coordination of PV-EFP functions

9.6 Product safety tests

10 Software or firmware performing safety critical functions

10.1 General

10.1.1 Overview

10.1.2 Risk analysis

10.1.3 Integrated PV-EFPE

10.2 Evaluation methods

10.2.1 General

10.2.2 Testing with features disabled

10.2.3 Functional safety analysis

11 Marking and documentation

11.1 Equipment markings

11.1.1 General

11.1.2 Marking content

11.2 Installation and operating instructions

11.2.1 General

11.2.2 General content

11.2.3 Information related to installation

11.2.4 Information related to operation

11.2.5 Information related to maintenance

12 Routine (production) tests

12.1 General

12.2 Routine dielectric tests

12.3 Routine EFP function tests

12.3.1 General

12.3.2 Shock hazard current monitoring

12.3.3 Electronic fire hazard current monitoring

12.3.4 Residual current device test function

12.3.5 PV array insulation monitoring function

Annex A (informative) Examples of system topologies with respect to PV Earth Fault Protection

A.1 General

A.2 Functionally earthed (FE) system with FE current monitoring

A.3 Functionally earthed (FE) system with a functionally earthed conductor fault

A.4 Functionally earthed (FE) system with residual current monitoring

A.5 Non-separated system with residual current monitoring on PV+/-

A.6 Non-separated system with residual current monitoring on the AC side

A.7 Non-earth-referenced system with continuous insulation monitoring

Annex B (informative) Background and rationale for PV Earth Fault Protection requirements

B.1 Purpose

B.2 PV earth faults – scope and meaning

B.3 PV-EFP goals

B.4 PV-EFP challenges

B.4.1 Characteristics of PV systems that affect PV-EFP approaches

B.4.2 PV-EFP “blind spots” and coordination of protective measures

B.4.3 Relation between PV-EFP protection settings and PV system size

B.5 Current and historical standards covering PV Earth Fault Protection

Bibliography