Standard: IEC - 61089 AMD 1
AMENDMENT 1 ROUND WIRE CONCENTRIC LAY OVERHEAD ELECTRICAL STRANDED CONDUCTORS
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This International Standard specifies the electrical and mechanical characteristics of round wire concentric lay overhead electrical stranded conductors made of combinations of any of the following metal wires:
a) hard-drawn aluminium as per IEC 889 designated A1*;
b) aluminium alloy type B as per IEC 104 designated A2*;
c) aluminium alloy type A as per IEC 104 designated A3* (and when applicable to the following cores, as per IEC 888);
d) regular strength steel, designated S1A or S1B, where A and B are zinc coating classes, corresponding respectively to classes 1 and 2;
e) high strength steel, designated S2A or S2B;
f) extra high strength steel, designated S3A.
The conductor designations included in this standard are:
A1, A2, A3,
A1/S1A, A1/S1B, A1/S2A, A1/S2B, A1/S3A, A2/S1A,
A2/S1B, A2/S3A, A3/S1A,
A3/S1B, A3/S3A, A1/A2, A1/A3.
* The resistivity of these metals is as follows (in increasing order):
A1: 28,264 nΩm (corresponding to 61% IACS),
A2: 32,530 nΩm (corresponding to 53% IACS),
A3: 32,840 nΩm (corresponding to 52,5% IACS).
|Organization:||International Electrotechnical Commission|
|Document Number:||61089 amd 1|
|Most Recent Revision:||YES|
|Document #||Change Type||Update Date||Revision||Status|
|IEC 61089||Change Type: STCH||Update Date: 1991-05-01||Revision: 1.0||Status: ACTV|