The typical application of the LFES is the end sealing of a cable against water ingress during an ongoing installation operation and to enable optical and electrical testing of the system. It is designed with an operational life of approximately three months, depending on application, when the cable deployed is positively charged, The UJ LFES does not provide protection when negatively charged. The UJ Consortium is developing options for LFES for applications where there is a requirement for an extended, possibly indefinite, period of protection. A UJC Bulletin will be issued to announce its availability when the development is complete.