Cast saw protective system

A protective system for a cast saw having a saw blade for cutting a cast, said protective system comprising:

• a voltage source;
• a conductive layer designed to have an inherent measurable voltage across a surface of the conductive layer;
• a first lead attached to a first end of the conductive layer that is at least partially embedded in the cast, and a second lead attached to a second end of the conductive layer;
• and
• a processor coupled to the voltage source, wherein the processor is configured to:
• apply a voltage to the saw blade of the cast saw;
• receive a voltage reading taken across the conductive layer, wherein the received voltage reading comprises a measurement taken across the first lead and the second lead;
• determine whether the received voltage reading exceeds a threshold voltage, wherein the threshold voltage is based at least in part on the inherent measurable voltage across the surface of the conductive layer, wherein the inherent measurable voltage helps to determine whether the first and second leads are properly attached to the conductive layer;
• and responsive to a determination that the received voltage
• exceeds the threshold voltage, activate an alarm to warn a user of the cast saw that the saw blade is in contact with the conductive layer.