Network Innovation Allowance
ED - Safety, health and environment, ET - New technologies and commercial evolution, ET - Safety and health and environment
The employment of this new gas presents a number of challenges to SPT. All persons who carry out installation, servicing, maintenance, repair or decommissioning of SF6 filled equipment in SPT are Certified Persons who are trained and competent on all activities associated with working on SF6 filled equipment in accordance with the European Commission Regulations. However, there is no current knowledge on the use of alternative gasses such as g3. The trial will allow the following skills in SPT to be developed:
i. Clarification of Certification requirements for personnel and how these will differ from training and Certification for handling SF6.
ii. An understanding of the physical, chemical and environmental characteristics of g3.
iii. Clarification on the relevant environmental issues associated with use of g3
iv. How the quality g3 will be checked during maintenance and other interventions.
v. The important properties that have to be measured. Use of analyser equipment.
vi. Types of impurities which may be present, and what impact will they have on the performance of the gas.
vii. Recovery of g3and purification of g3.
viii. Requirements for the re-use of g3
ix. Safety precautions for working on open compartments used for g3
x. What Personal Protective Equipment is required to handle new g3
xi. The stability of the g3 mixture over long term service
xii. Impact on design pressure of GIS enclosures
xiii. Compatibility issues with types of bursting disc, gaskets and filing valves
xiv. Impact on continuous gas monitoring systems
xv. How will gas leaks be detected and what instruments are compatible to allow this testing to be carried out
xvi. Types of gas analysers that can be used
xvii. Use and management of dedicated g3 filling equipment (“gas carts”)