This is before and after cable freezing, where we have supplied liquid Nitrogen to NIE  to effectively freeze one of their oil filled cables.

Cable freezing allows you to isolate parts of installations that need repair. Hence it is a technique used to freeze contents of a section of a cable. Therefore by applying liquid nitrogen to the perimeter of the cable in a controlled manner the contents of the cable freeze and form a plug.

This cable freeze is for Northern Ireland Electricity Networks Limited. Freezing allows isolation of equipment, consequently is an effective way of stopping the flow of oil so cables can be altered or maintained.


Pipeline Solutions NI Ltd established in 2000, employs multiple teams of highly skilled and experienced operatives.  We specialise in the supply, installation and maintenance of Industrial, Laboratory and Medical Gas Systems across the UK and Ireland.

Managed by Gareth McClean, Pipeline Solutions NI Ltd is complimented by three separate but closely linked companies, enabling us to offer our clients a complete package:

Cryotanks Ltd
Cryogenic Tank Rental and Liquid Deliveries

HPI (Ireland) Ltd
Installation and Maintenance of Medical Gas Systems

Gas Detection Ltd
Design Installation and Maintenance of Gas Detection and Proving systems