Hazard/perimeter safety system

A system for preventing accidental intrusions into a hazardous area, the system comprising:

• a transmitter;
• a signal wire connectable to the transmitter to emit a wireless signal driven by the transmitter, the signal wire configured for placement between a non-hazardous area and a hazardous area at a worksite;
• a portable sensors configured to be carried on the body of a person at the worksite and to sense the wireless signal from the signal wire when the sensor is within a predetermined distance from the signal wire with the signal wire placed between a non-hazardous area and a hazardous area at a worksite;
• and
• an alerting device operably associated with the sensor to automatically generate an alert to a person carrying the sensor in response to the sensor sensing the wireless signal from the signal wire when the sensor is within a predetermined distance from the signal wire with the signal wire placed between a non-hazardous area and a hazardous area at a worksite, the alerting device configured to be positioned at the worksite independent from the sensor.