Electrical apparatus for explosive gas atmospheres. Part 6. Oil-immersion "o"

This document specifies requirements for the construction, testing, and marking of electrical equipment intended for use in explosive gas atmospheres. It focuses on equipment designed for use in the "o" protection method, which involves immersion in oil. The standard outlines the necessary technical characteristics, safety measures, and procedures to ensure the proper operation of such equipment in hazardous environments. It provides guidelines for manufacturers, users, and inspection bodies to ensure compliance with safety and performance criteria. The document covers aspects such as materials used, design considerations, and environmental conditions under which the equipment can operate safely. It also includes instructions for testing and certification processes to verify that the equipment meets the required standards for use in explosive atmospheres.