Hazards from explosions exist in the industrial field where hazardous materials storage, pressure vessels or accidental pressurisation of structures can wreak havoc. Switches and transformers on the Supergrid carry a risk from the release of energy during a short circuit.
The two papers linked here examine the threat from porcelain insulator fragments thrown from equipment during simulated failure. Luckily the inherent danger of high voltage equipment means they are positioned in isolated locations, but explosions can still cause damage and also present a hazard to maintenance personnel.
High velocity fragments pose a particular risk to cable suspended structures where the structural load may be concentrated across relatively small cross sections. Suspension cables are structurally complex and their response to fragments is poorly understood. The linked paper below is probably the first published study of their behavior during impact.