Số hiệu tiêu chuẩn
EN 50020
Tên tiêu chuẩn
Electrical apparatus for potentially explosive atmospheres; intrinsic safety i
Ngày phát hành
1977-03-00
Tiêu chuẩn tương đương
DIN VDE 0170/0171-7 (1978-05), IDT * BS 5501-7 (1977-12-30), IDT * NF C23-520 (1982-05-01), IDT * SN EN 50020 (1994), IDT * SS-EN 50020 (1986-10-22), IDT * SS-EN 50020 (1991-09-11), IDT * UNE 21820 (1989-05-22), IDT * I.S. 237 (1980), IDT * NEN-EN 50020 (1980), IDT * NP-2897/4 (1984), IDT * SFS 4094 (1983), IDT * SFS 5248 EN 50020 (1986), IDT * STN EN 50020 (1992-11-01), IDT * NEN-EN 50020:1980 en (1980-02-01), IDT
Tiêu chuẩn liên quan
CECC 50000 (1977) * EN 50014 (1977) * EN 50018 (1977) * IEC 60085 (1957) * IEC 60112 (1971) * IEC 60144 (1963) * IEC 60348 (1971) * ISO 54 (1966)
Từ khóa
Atmosphere * Building specifications * Circuits * Components * Defects * Definitions * Diodes * Earthing * Electric plugs * Electric wiring systems * Electrical engineering * Electrically-operated devices * Enclosures * Explosion protection * Flammable atmospheres * Intrinsic safety * Leakage paths * Marking * Printed circuits * Relays * Safety * Semiconductors * Transformers * Normal operation * Insulations * Clearances * Secondary cells * Electrical * Mains transformers * Storage batteries * Primary cells * Ground lugs * Assemblies * Capacitors * Earthing connection * Categories * Power transformers * Equipment * Means of connection * Testing * Elements