Số hiệu tiêu chuẩn
FprEN 60255-149
Tên tiêu chuẩn
IEC 60255-149, Ed. 1: Measuring relays and protection equipment - Part 149: Functional requirements for thermal electrical relays
Ngày phát hành
2012-05-00
Tiêu chuẩn tương đương
IEC 95/295/CDV (2012-05), IDT * OEVE/OENORM EN 60255-149 (2012-07-15), IDT
Từ khóa
Availability * Behaviour * Contact * Control devices * Control systems * Definitions * Design * Dimensioning * Dimensions * Electrical engineering * Electrical insulation * Electrical protection equipment * Environmental condition * Environmental conditions * Functional efficiency * Life cycles * Marking * Measurement conditions * Measuring relays * Mechanical properties * Network protection * Precision * Products documentation * Protection devices * Qualification tests * Quality assurance * Ratings * Relays * Reliability * Safety * Safety engineering * Testing * Thermal measurement * Thermal stress