Live Cable Joint – Triple Concentric PILC Cable (Street Lighting LV)

Published 19 Nov 2018

• Application: Triple Concentric PILC Cable (Street Lighting LV)
• Type: Live Cable Joint
• Cable Jointer: David Schofield – HV/LV Cable Jointer

• by Chris Dodds T&D - estimated reading time 5 minutes  

Today, we debut the skills and expertise of David Schofield, HV/LV Jointer. In the following commentary, David explains the cable jointing process when live cable jointing on LV low voltage cables.

Firstly, use a metal hack knife which is an essential hand tool in any cable jointers tool set to remove the steel tape armour from the cable to be jointed.

Use cable cleaning wipes to clean the lead cover and fit a 2-ended continuity bond to bridge the lead. Remove the lead and papers then fit a constant force spring around the lead – a cut is then applied to the 2nd part of the continuity bond around the outer concentric strands (neutral).

This enables the Jointer to cut the neutral in the middle of the cable joint – once cut form them back into a conductor and apply tape and reconnect with a Sicame connector with the single phase neutral included and the earths from both sides of the lead cut.

Next tape up just from the cable crutch of the neutral with Scotch 88 tape and remove papers. Next phase cut in the centre of the cable, this should be a live phase from into a conductor and Scotch 88 tape around the live strands which are live both ways. Now the reconnect with 2nd Sicame straight barrel and apply insulation patch. Tape next layer of papers from crutch to crutch and remove a section of tape and papers from the centre of this core revealing the inner phase. Install Sicame clamp connectors onto this core and with the single phase service core included apply rubber shroud onto this then apply water blocks. Finally, bond armours down and over protect the cable joint with the shell.

Live Cable Joint – Triple Concentric PILC Cable (Street Lighting LV)

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