Hi,
I am working on an underground cable system where there are some telephone cables in the vicinity of the new cable.
I am looking at the study supplied by the contractor on the induced voltage on the tele cables and wanted to do a double check on the calculations.
I have found a CIGRE...
Hi There,
I am working on quite a large project with a 600 line proramme.
We have had several restructures of the programme and every time the programme shifts, I have to move a repeated unit of work (a section of cabling) and re do all of the links between each work section. Takes ages and...
Hi,
I am aware that when a single phase cable is enclosed by a ring of ferromagnetic material that it can heat up and cause damage to insulation. This I have learnt from previous posts.
My problem is that I need to justify this in a report to my client.
We have a HV Cable 132kV with an...
Hiya,
I am commission a 275kV underground cable system.
System:
Conductor resistance is about 15m? per phase.
Each phase is a single core with Aluminium corrugated sheath cross bonded at the joint bays.
Background:
I am trying to test the cross bonding system. The goal being to prove...
Hi All,
During rectification work on the earth grid of a 275kV Underground Cable project the earth grid was damaged by a Jackhammer removing concrete around the copper horizontal conductors.
The critical info is the following.
The earth grid is designed to take any fault curent from the...
Hi all,
I am working in Australia on a Transmission Cable job and we are having difficulty finding suitable end caps to waterproof the cables after installation.
The cables are 2500mm2 and 168mm in OD so the heat shrink products are not very readily available.
Can anyone suggest a supplier...
Hi Everyone,
I am a new memeber here to Eng Tips and have been enjoying the discussion thoroughly thus far.
I have recently moved from a utility into a much smaller private enterprise in Australia. We are working on turnkey underground cabling projects.
Being a smaller enterprise, the...
