Q) Birdcage buckling a phenomenon in a subsea armoured power cable!
Q) Birdcage buckling a phenomenon in a subsea armoured power cable!
(OP)
How does this sound folks?
Birdcage buckling Is a phenomenon which occurs in an armoured subsea power cable when laid or moved under low tension. The axial torsion within the cable generated by both the twisted cores and the steel wire armour produce a twist, this in turn causes a reduction in tension of the armour wiring thus causing it expand like a bird cage, it is occasionally accompanied by a loop in the cable. A birdcage can seriously damage a cable requiring costly repair.
My owns words.
tks
Birdcage buckling Is a phenomenon which occurs in an armoured subsea power cable when laid or moved under low tension. The axial torsion within the cable generated by both the twisted cores and the steel wire armour produce a twist, this in turn causes a reduction in tension of the armour wiring thus causing it expand like a bird cage, it is occasionally accompanied by a loop in the cable. A birdcage can seriously damage a cable requiring costly repair.
My owns words.
tks
RE: Q) Birdcage buckling a phenomenon in a subsea armoured power cable!
laid or moved under low tension > subjected to axial tension
The axial torsion > Torsion > or ...
> Torsion about the cable's axis produces a twist that reduces tension in the armor. The reduced tension can allow the spiraled armor to expand like a bird cage, which can also result in a looped cable.
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RE: Q) Birdcage buckling a phenomenon in a subsea armoured power cable!
RE: Q) Birdcage buckling a phenomenon in a subsea armoured power cable!
RE: Q) Birdcage buckling a phenomenon in a subsea armoured power cable!
Birdcage buckling Is a phenomenon which occurs in armoured subsea power cables and flexible’s when subject to low axial tension or twisting opposite to the direction of the cable lay up ie during manufacture, lay or loadout.
The axial torsion within the cable generated by both the twisted cores and/or the helically wound steel wire armor act to produces a rotational twist in the cable, this causes a reduction in tension of the armour wiring thus causing it expand and open like a bird cage, it is occasionally accompanied by a loop in the cable. A birdcage can seriously damage a cable requiring costly repair.
RE: Q) Birdcage buckling a phenomenon in a subsea armoured power cable!
"Armoured subsea cables need to be laid with large axial tension.
If this tension reduces or becomes zero, there is a phenomenon called "bird caging" which results is the armour delaminating and creating an expanded bundle of wires resembling a bird cage. This requires costly repair."
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RE: Q) Birdcage buckling a phenomenon in a subsea armoured power cable!