IEC 61156-1:2007/COR1:2015

 IEC 2015
INTERNATIONAL ELECTROTECHNICAL COMMISSION

COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE

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IEC 61156-1 IEC 61156-1
Edition 3.0  2007-06 Edition 3.0  2007-06

MULTICORE AND SYMMETRICAL PAIR/QUAD CABLES MULTICONDUCTEURS A PAIRES
CABLES FOR DIGITAL COMMUNICATIONS – SYMETRIQUES ET QUARTES POUR
TRANSMISSIONS NUMÉRIQUES –
Part 1: Generic specification
Partie 1: Spécification générique

CO RRI G E NDUM 1
Corrections to the French version appear after the English text.
Les corrections à la version française sont données après le texte anglais.

Replace the following subclause:
6.2.2.2 Resistance unbalance between pairs
The resistance unbalance between pairs or sides of quads is given by
R ⋅ R ×( R + R )− R ⋅ R ×( R + R )
max i min i max k min k max k min k max i min i
∆RP =
(2)
i,k
R ⋅ R × ( R + R )+ R ⋅ R ×( R + R )
max i min i max k min k max k min k max i min i
where
∆RP is the pair resistance unbalance (%);
R is the resistance for the pair with the higher resistance value (Ω);
max
R is the resistance for the pair with the lower resistance value (Ω);
min
i,k i ≠ k where i = 1 to n and k = 1 to n for n = number of pairs.

as follows:
6.2.2.2 Resistance unbalance between pairs
The resistance unbalance between pairs or sides of quads is given by
R ⋅ R ( R + R )− R ⋅ R ( R + R )
max i min i max k min k max k min k max i min i
RP = 100
(2)
i,k
R ⋅ R ( R + R )+ R ⋅ R ( R + R )
max i min i max k min k max k min k max i min i
IEC 61156-1:2007-06/COR1:2015-09(en-fr)
Δ
– 2 – IEC 61156-1:2007/COR1:2015

 IEC 2015
where
∆RP is the resista
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