MIXED ANTIKNOCK ADMIXTURE

摘要

A non-fragmenting surge arrester with a staged pressure relief mechanism includes a liner with outlets formed in its walls. A gas expansion chamber is within the liner. A housing has weakened-wall regions adjacent to the outlets in the liner. Ionised gas formed by an internal failure is vented from the expansion chamber through the outlets and upon generation of sufficient pressure, fractures the housing at the weakened-wall regions. - In this manner, the generated gas foms a lower impedance path fot the current which is thereby shunted around the failed internal components, preventing the generation of further internal pressure which could cause a catastrophic failure of the arrester. @33pp Dwg.No.1/8)@