This standard stipulates the maintenance cycle, maintenance items, maintenance process standards and methods of high-voltage DC measuring devices, as well as pre-maintenance preparation, maintenance steps, maintenance quality requirements, and maintenance report format. This standard applies to the inspection and maintenance of high-voltage DC measuring devices, including DC voltage dividers, electronic zero-flux DC current transformers, and photoelectric DC current transformers.
DL/T 353-2010 history
1970DL/T 353-2019 Guidelines for Overhaul of High-Voltage DC Measuring Devices
2011DL/T 353-2010 Guide for HVDC measuring equipment maintenance