This clause of IEC 62446-1:2016 is applicable with the following exception:

Addition:

This Part 2 of IEC 62446 describes basic preventive, corrective, and performance related maintenance requirements and recommendations for grid-connected PV systems. The maintenance procedures cover:

Basic maintenance of the system components and connections for reliability, safety and fire prevention
Measures for corrective maintenance and troubleshooting
Worker safety

This document also addresses maintenance activities for maximizing anticipated performance such as module cleaning and upkeep of vegetation. Special considerations unique to rooftop or ground-mounted systems are summarized. This document does not cover off-grid systems or systems that include batteries or other energy storage technologies; however, parts may be applicable to the PV circuits of those systems.

This document also does not cover maintenance of medium and high voltage a.c. equipment that are sometimes integral to larger scale systems, as those requirements are not specific to PV systems.

Maintenance of PV systems is often lumped into the catch-all term operations and maintenance (O&M.) This document does not address business or management operational processes (e.g. forecasting, utility pricing incentives, etc.) or other considerations driven by factors outside of basic system working condition, safety and performance.

The confirmation of a system’s compliance with the appropriate design and installation standards is covered in Part 1 and takes place during initial project commissioning.

The objectives of this document are to:

Identify a baseline set of maintenance requirements which may differ by system type (residential, commercial, utility scale), owner, or financing requirements.
Identify additional maintenance steps that are recommended or optional.
Identify factors to be used to determine appropriate maintenance intervals.
Ensure that remote diagnostic methods are allowed as means for periodic verification, problem identification and early failure detection.
Ensure that alternate means of achieving maintenance related requirements are allowed to accommodate for innovation, manufacturer specific methods, evolving customer requirements, etc.

PDF Catalog

PDF Pages	PDF Title
2	undefined
5	Annex ZA(normative)Normative references to international publicationswith their corresponding European publications
7	English CONTENTS
9	FOREWORD
11	INTRODUCTION
12	1 Scope
13	2 Normative references 3 Terms and definitions
15	4 System documentation requirements 4.1 General 4.8 Operation and maintenance information
16	4.10 Performance benchmarking 4.11 Documentation of records 5 Verification 6 Test procedures – Category 1 7 Test procedures – Category 2 8 Test procedures – Additional tests
17	9 Verification reports 10 Maintenance protocols 10.1 General 10.2 Verification intervals and triggers
18	Table 3 – Verification and maintenance tasks and basis for determining task intervals
22	10.3 Other considerations for determining specific verification intervals 11 Verification tasks 11.1 General 11.2 General site visual inspection 11.2.1 All systems
23	11.2.2 Rooftop systems 11.2.3 Ground-mount systems 11.3 Component inspection and safety related maintenance 11.3.1 Inverter and main electrical equipment pad 11.3.2 Combiner boxes, disconnects and isolators
25	11.3.3 Modules 11.3.4 PV connectors
26	11.3.5 Wiring 11.3.6 Mounting system
27	11.3.7 Conduits and cable trays 11.3.8 Weather station 11.4 Performance related maintenance 11.4.1 General 11.4.2 Wiring connection resistance 11.4.3 Shade evaluation 11.4.4 Module string or wiring harness testing
29	11.4.5 Vegetation management 11.4.6 Soiling and array cleaning
31	12 Troubleshooting and corrective maintenance 12.1 General 12.2 Shutdown of equipment in response to hazardous failures 12.3 Troubleshooting non-hazardous failures 12.4 Troubleshooting incident or event-triggered issues
32	12.5 Diagnosing performance related issues
33	13 Additional procedures 13.1 General 13.2 Safety procedures 13.2.1 General 13.2.2 Safe operation of switch disconnectors 13.3 Isolation procedures 13.3.1 Emergency shutdown
34	13.3.2 Non-emergency shutdown
35	13.4 Inspection and preventive maintenance procedures 13.4.1 Inverter manufacturer specific procedures
36	13.4.2 Tracker manufacturer specific procedures 13.4.3 Data acquisition system specific procedures
37	13.5 Electrical test procedures 13.5.1 Earth fault testing
39	13.5.2 Fuse tests 13.5.3 Bypass diode tests
40	13.6 Diagnostic procedures 13.6.1 Validation of data acquisition systems (DAS)
43	13.6.2 Inverter diagnostics Table 4 – Common reported inverter errors
45	Annex E (normative)Safety considerations E.1 Qualified persons E.2 General safety considerations
46	E.3 Personal protective equipment E.4 Isolation procedures E.5 Lock-out tag-out
47	E.6 PV specific signs and labelling
48	Annex F (informative)Example preventive maintenance schedule F.1 General F.2 Example system description
49	Table F.1 – Preventive maintenance schedule for XYZ plant
55	Annex G (informative)PV system operations
56	Bibliography

Status	Definitive
Pages	58
Publication Date	2020-05-20
ISBN	978 0 580 95840 3
Standard Number	BS EN IEC 62446-2:2020
Title	Photovoltaic (PV) systems. Requirements for testing, documentation and maintenance – Grid connected systems. Maintenance of PV systems
Identical National Standard Of	IEC 62446-2 Ed 1.0, EN IEC 62446-2:2020, EN 61753-086-6:2011
Descriptors	Electrical safety, Inspection, Circuit diagrams, Photovoltaic cells, Electric power systems, Electrical testing, Commissioning, Solar cells, Verification, Maintenance, Technical documents, Electrical installations, Solar power, Solar energy electric power stations, Technical data sheets
Publisher	BSI
Committee	GEL/82
ICS Codes	27.160 - Solar energy engineering


PDF Format	Searchable	Printable	Preview Now

BS EN IEC 62446-2:2020

PDF Catalog

Related products

BS EN IEC 62446-2:2020