International Standards and Conformity Assessment for all electrical, electronic and related technologies

TC 82

Solar photovoltaic energy systems

 

Detail

Committee
Working Groups
Project Leader

Current

Status

Frcst Pub

Date

Stability

Date

TC 82WG 2Mr Guido VolbergPPUB2020-082023

History

Stage
Document
Downloads
Decision Date
Target Date
AMW
82/1181/RR PDF file 142 kB
2016-09-23 
ACD
2016-09-242016-09
CD
82/1309/CD
PDF file 548 kB
2017-06-232016-10
PCC
2017-09-152017-09
ACDV
82/1351/CC PDF file 599 kB
Word file 794 kB
2017-09-222018-03
ACDV
82/1351A/CC PDF file 605 kB
Word file 799 kB
2017-09-222018-03
TCDV
2018-05-182018-05
CCDV
82/1434/CDV
PDF file 751 kB
PDF file 755 kB
2018-07-062018-07
PRVC
2018-09-282018-09
AFDIS
82/1506/RVC PDF file 777 kB
Word file 101 kB
2018-11-022018-11
AFDIS
82/1506A/RVC PDF file 840 kB
Word file 115 kB
2018-11-022018-11
TFDIS
2019-09-022019-08
DECFDIS
2019-10-142019-10
RFDIS
2019-11-062019-11
CFDIS
82/1719/FDIS

2020-04-032020-01
PRVD
2020-05-152020-05
APUB
82/1738/RVD PDF file 260 kB
2020-05-292020-05
BPUB
2020-05-292020-05
PPUB
2020-07-152020-07
  

Abstract

IEC 62790:2020 is available as IEC 62790:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 62790:2020 describes safety requirements, constructional requirements and tests for junction boxes up to 1 500 V DC for use on photovoltaic modules in accordance with class II of IEC 61140:2016.
This document applies also to enclosures mounted on PV-modules containing electronic circuits for converting, controlling, monitoring or similar operations. Additional requirements concerning the relevant operations are applied under consideration of the environmental conditions of the PV-modules. This document does not apply to the electronic circuits of these devices, for which other IEC standards apply. This second edition cancels and replaces the first edition published in 2014. This edition includes the following significant technical changes with respect to the previous edition:
- Modifications in normative references and terms and definitions;
- Improvement of declaration of categories for junction boxes in 4.1;
- Clarification for ambient temperature in 4.1;
- Addition of requirement to provide information concerning RTE/RTI or TI in 4.2;
- Reference to IEC 62930 instead of EN 50618 in 4.6;
- Addition of "Functional insulation" in Table 1;
- Addition of "Distance through cemented joints" in Table 3;
- Correction of procedure of process to categorize material groups (deletion of PTI) in 4.15.2.3;
- Requirement for approval of RTE/RTI or TI for insulation parts in 4.16.1 and 4.16.2;
- Change of requirements concerning electrochemical potential in 4.17.2;
- Clarification for IP-test in 5.3.4.2;
- Addition of test voltage for cemented joints in 5.3.6 and 5.3.16;
- Addition of detailled description on how to prepare the test sample for the thermal cycle test in 5.3.9.1;
- New test procedure for bypass diode thermal test (5.3.18) in accordance with MQT 18.1 of IEC 61215-2:2016;
- New test procedure for reverse overload current test in 5.3.23;
- New Figure 1 for thermal cycle test.

Project

IEC 62790:2020 ED2

Junction boxes for photovoltaic modules - Safety requirements and tests

 

 

Associated Documents:

82/1180/INF

PDF file 417 kB
82/1119/DC

Word file 133 kB
PDF file 126 kB
SMB/6186/DL

PDF file 474 kB