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Carbon Tetrachloride liquid fuses
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Carbon Tetrachloride liquid fuses
Electra has become aware of ground mount distribution transformers on its network protected with HV liquid fuses, assumed to be filled with Carbon Tetrachloride (or ‘Carbon tet’) to extinguish a fault arc.
With Carbon Tetrachloride being classed as a probable carcinogen and recorded as acutely toxic, Electra is looking to introduce controls over the handling of these fuses (intact or activated) including disposal processes.
We would greatly appreciate any advice from other EDBs that have encountered these fuses on their network on what controls or processes were put in place (if any) for their handling, and what failure methods have been identified for these fuses (ie low fluid levels potentially leading to explosion when clearing a fault?).
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