bsi. ...making excellence a habit Inspiringtrust for a more resilient world 需要更多标准请联系 wechat: wpwyq310 PDIECTR63227:2020 BSl StandardsPublication Lightning and surge voltageprotection for photovoltaic(Pvpower supply systems bsi. PDIECTR63227:2020 PUBLISHEDDOCUMENT Nationalforeword ThisPublishedDocumentistheUKimplementationof IECTR63227:2020. TheUK participation in its preparation was entrusted to Technical Alistof organizations represented onthis committeecanbe obtained on requesttoits committeemanager. This publication does not purportto includeall the necessaryprovisions ofa contract.Users areresponsibleforitscorrectapplication. TheBritishStandardsInstitution2020 PublishedbyBSIStandardsLimited2020 ISBN9780539029307 ICS27.160 Compliance with a British Standard cannot confer immunity from legal obligations. This Published Document waspublishedunderthe authority of the Amendments/corrigenda issued sincepublication Date Textaffected