When performing disentanglement, how should rescuers disconnect battery cables to ensure safety?

When performing disentanglement in a vehicle extrication scenario, starting with the negative terminal is crucial for ensuring safety when disconnecting battery cables. By disconnecting the negative terminal first, rescuers effectively minimize the risk of electrical shock or short-circuiting, which can occur if tools accidentally contact conductive materials on the vehicle while the positive terminal remains connected.

The negative terminal is typically grounded to the vehicle's chassis, so removing it first isolates the electrical circuit. This procedure helps prevent the potential for accidental sparking or activation of electrical components while handling the vehicle.

Following this protocol is vital, as it ensures that any remaining stored electrical energy in components and systems, like airbags, is less likely to be discharged unexpectedly while rescuers operate. By adhering to this widely accepted procedure, rescuers can work more safely around potential hazards inherent in vehicle extrication.