Ageing of electric cables in light water reactors (LWRs) - Materials' Ageing and Degradation in Light Water Reactors - page 227

FDR (frequency domain refl ectometry). A version
of FDR technique is referred to as LIRA, which
stands for Line Resonance Analysis.
There is also a technique which is referred to as
Joint Time and Frequency Domain Refl ectometry
or JTFDR

I,C,CN,P,S,T ᅚ ᅚ ᅚ ᅚ

Elongation at break (tensile strength) I No No No ᅚ

Indenter test (compressive modulus) I ᅚ No ᅚ ᅚ

Oxidation induction time/temperature (classical
oxidation measurement)

I No No No ᅚ

Fourier transform infrared measurement I No No No ᅚ

Gel content test I No No No ᅚ

*In-situ: Test that can be performed without disconnecting the end device while the cable is installed in its normal environment.
Legend: Insulation and Jacket (I), Conductor (C), Connections (CN), Penetrations (P), Splices (S), Terminations (T). **Applicable to medium
voltage cables only