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Self-ballasted LED-lamps for general lighting services by voltage over 50 V. Operating requirements
Document status: Active
Auxiliaries for lamps. A.C. supplied electronic ballasts for tubular fluorescent lamps. General and safety requirements
Document status: Active
Petroleum and natural gas industries. Shell-and-tube heat exchangers. Technical requirements
Document status: Active
Boxes and enclosures for electrical accessories for household and similar fixed electrical installations. Part 1. General requirements
Document status: Active