IEC 62420:2008
Concentric lay stranded overhead electrical conductors containing one or more gap(s)
Conducteurs pour lignes électriques aériennes câblés en couches concentriques comprenant un ou plusieurs intervalles
| Označení normy: | IEC 62420:2008 |
| Vydáno: | 2008-04-25 |
| Edice: | 1 |
| ICS: | 29.240.20 |
IEC 62420:2008
IEC 62420:2008 specifies the electrical and mechanical characteristics of concentric lay stranded overhead electrical conductors, containing one or more self-supporting alumimium or aluminium alloy layer(s) made of combination of any of the following metal wires:
- Hand drawn aluminium as per IEC 60889, designated A1;
- aluminium alloy type A or B as per IEC 60104, designated A2 or A3;
- thermal resistant aluminium alloy as per IEC 62004, designated AT1, AT2, AT3, or AT4;
- regular strength steel as per IEC 60888, designated S1A or S1B;
- high strength steel as per IEC 60888, designated S2A or S2B;
- extra-high strength steel as per IEC 60888, designated S3A;
- aluminium-clad steel as per IEC 61232, designated 20SA, 27SA, 30SA or 40SA.