BS PD IEC/TR 63065:2017 provides general guidance on basic principles and general proposalsfor the safe and economic operation and maintenance of an LCC converter station.These guidelines are based on the operation and maintenance practices that have been usedsuccessfully during the last decades at HVDC converter stations all over the world, and canbe referred to by new HVDC users to optimize operation and maintenance policy and assist inperforming the operation and maintenance work.This document focuses only on the operation and maintenance of the equipment inside anLCC converter station, including back-to-back HVDC systems. The operation andmaintenance of HVDC overhead transmission lines, HVDC cables and voltage sourcedconverter (VSC) are not covered by this document.Cross References:IEC 61975:2010IEC TS 62672-1:2013IEC 60633:1998IEC 60919 CIGRE B4-117-2014CIGRE B4-209-2010CIGRE B4-131-2016CIGRE B4-119-2008GIGRE B4-113-2012