This clause of IEC 62446-1:2016 is applicable with the following exception:<\/p>\n
Addition:<\/i><\/p>\n
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:<\/p>\n
Basic maintenance of the system components and connections for reliability, safety and fire prevention<\/p>\n<\/li>\n
Measures for corrective maintenance and troubleshooting<\/p>\n<\/li>\n
Worker safety<\/p>\n<\/li>\n<\/ul>\n
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.<\/p>\n
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.<\/p>\n
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.<\/p>\n
The confirmation of a system\u2019s compliance with the appropriate design and installation standards is covered in Part 1 and takes place during initial project commissioning.<\/p>\n
The objectives of this document are to:<\/p>\n
Identify a baseline set of maintenance requirements which may differ by system type (residential, commercial, utility scale), owner, or financing requirements.<\/p>\n<\/li>\n
Identify additional maintenance steps that are recommended or optional.<\/p>\n<\/li>\n
Identify factors to be used to determine appropriate maintenance intervals.<\/p>\n<\/li>\n
Ensure that remote diagnostic methods are allowed as means for periodic verification, problem identification and early failure detection.<\/p>\n<\/li>\n
Ensure that alternate means of achieving maintenance related requirements are allowed to accommodate for innovation, manufacturer specific methods, evolving customer requirements, etc.<\/p>\n<\/li>\n<\/ul>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
| 5<\/td>\n | Annex ZA(normative)Normative references to international publicationswith their corresponding European publications <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | English CONTENTS <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | INTRODUCTION <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 1 Scope <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 4 System documentation requirements 4.1 General 4.8 Operation and maintenance information <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 4.10 Performance benchmarking 4.11 Documentation of records 5 Verification 6 Test procedures \u2013 Category 1 7 Test procedures \u2013 Category 2 8 Test procedures \u2013 Additional tests <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 9 Verification reports 10 Maintenance protocols 10.1 General 10.2 Verification intervals and triggers <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | Table 3 \u2013 Verification and maintenance tasks and basis for determining task intervals <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | 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 <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | 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 <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | 11.3.3 Modules 11.3.4 PV connectors <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | 11.3.5 Wiring 11.3.6 Mounting system <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | 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 <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | 11.4.5 Vegetation management 11.4.6 Soiling and array cleaning <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | 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 <\/td>\n<\/tr>\n | ||||||
| 32<\/td>\n | 12.5 Diagnosing performance related issues <\/td>\n<\/tr>\n | ||||||
| 33<\/td>\n | 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 <\/td>\n<\/tr>\n | ||||||
| 34<\/td>\n | 13.3.2 Non-emergency shutdown <\/td>\n<\/tr>\n | ||||||
| 35<\/td>\n | 13.4 Inspection and preventive maintenance procedures 13.4.1 Inverter manufacturer specific procedures <\/td>\n<\/tr>\n | ||||||
| 36<\/td>\n | 13.4.2 Tracker manufacturer specific procedures 13.4.3 Data acquisition system specific procedures <\/td>\n<\/tr>\n | ||||||
| 37<\/td>\n | 13.5 Electrical test procedures 13.5.1 Earth fault testing <\/td>\n<\/tr>\n | ||||||
| 39<\/td>\n | 13.5.2 Fuse tests 13.5.3 Bypass diode tests <\/td>\n<\/tr>\n | ||||||
| 40<\/td>\n | 13.6 Diagnostic procedures 13.6.1 Validation of data acquisition systems (DAS) <\/td>\n<\/tr>\n | ||||||
| 43<\/td>\n | 13.6.2 Inverter diagnostics Table 4 \u2013 Common reported inverter errors <\/td>\n<\/tr>\n | ||||||
| 45<\/td>\n | Annex E (normative)Safety considerations E.1 Qualified persons E.2 General safety considerations <\/td>\n<\/tr>\n | ||||||
| 46<\/td>\n | E.3 Personal protective equipment E.4 Isolation procedures E.5 Lock-out tag-out <\/td>\n<\/tr>\n | ||||||
| 47<\/td>\n | E.6 PV specific signs and labelling <\/td>\n<\/tr>\n | ||||||
| 48<\/td>\n | Annex F (informative)Example preventive maintenance schedule F.1 General F.2 Example system description <\/td>\n<\/tr>\n | ||||||
| 49<\/td>\n | Table F.1 \u2013 Preventive maintenance schedule for XYZ plant <\/td>\n<\/tr>\n | ||||||
| 55<\/td>\n | Annex G (informative)PV system operations <\/td>\n<\/tr>\n | ||||||
| 56<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Photovoltaic (PV) systems. Requirements for testing, documentation and maintenance – Grid connected systems. Maintenance of PV systems<\/b><\/p>\n |