GOST R 59042-2020

Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCB's). Part 2-2. Applicability of the general rules to RCCB's functionally dependent on line voltage

Systems and software engineering. Systems and software Quality Requirements and Evaluation (SQuaRE). Service quality models

Building materials and products. Hygrothermal properties. Tabulated design values and procedures for determining declared and design thermal values

Medical chisels. General technical requirements and test methods

Black and white television picture tubes. General dimensions

Low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Electrical safety. Equipment for testing, measuring or monitoring of protective measures. Part 7. Phase sequence