Risky Business
Electricity is harmless when controlled and safely contained by insulated wires. During electrical surges, however, electricity can surge through damaged wire insulation in contact with metallic building materials such as heating and air conditioning ducts, pipes, etc. and fuse together creating many unstable electrical current paths which travel invisibly on building surfaces.
Over time, when electrified surfaces are not discovered, four scenarios increase the risk of fire, electrocution, and health concerns:
- Corrosion or loss of utility neutral wire
- Even mild power surge activity
- Lightning event
- Unbalanced electrical wiring
A Ground Fault / Arc Fault condition causes high resistance heating. When electrical faults are near a wood surface, a heating process transforms into a burning process by carbonizing the wood and lowering its ignition temperature.
ONE LESS DANGER
This romex wire above was INSIDE a wall. The black burned area is the carbonized remains of the plastic insulation. The carbon is a resistive (heating) load to that branch. The wire was in "live" operation serving living room wall outlets when discovered