An electrical safety monitoring system is provided. The system includes an analog circuit having line inputs for hardwiring an L1, an L2, an L3, and a GND three-phase connections, the analog circuit configured to monitor if voltage exists between any two of the line inputs, a heartbeat circuit electrically connected to the analog circuit to provide a heartbeat signal indicative of voltage present on any of the line inputs, an isolated voltage source electrically connected to the heartbeat circuit to power the heartbeat circuit with a VDC+ and a VDC−, and a logic circuit in operative communication with the heartbeat circuit for monitoring input from the heartbeat circuit and decoding the input from the heart beat circuit. The isolated voltage source may be supplied by a programmable logic controller (PLC) and the logic circuit may be implemented within the same PLC as a function block.

An electrical safety monitoring system is provided. The system includes an analog circuit having line inputs for hardwiring an L1, an L2, an L3, and a GND three-phase connections, the analog circuit configured to monitor if voltage exists between any two of the line inputs, a heartbeat circuit electrically connected to the analog circuit to provide a heartbeat signal indicative of voltage present on any of the line inputs, an isolated voltage source electrically connected to the heartbeat circuit to power the heartbeat circuit with a VDC+ and a VDC−, and a logic circuit in operative communication with the heartbeat circuit for monitoring input from the heartbeat circuit and decoding the input from the heart beat circuit. The isolated voltage source may be supplied by a programmable logic controller (PLC) and the logic circuit may be implemented within the same PLC as a function block.

An apparatus, system, and method for managing an electrostatic charge of a workpiece are disclosed. The method comprises coupling an electrostatic voltmeter to a conductor, coupling a charge-adjustment system to the conductor, and coupling the conductor to the workpiece. A level of charge in the workpiece is adjusted, via the conductor, with the charge-adjustment circuit and a voltage of the workpiece is monitored, via the conductor, with the electrostatic voltmeter. A controller may be used to adjust the charge on the workpiece based upon the monitored voltage.

An apparatus, system, and method for managing an electrostatic charge of a workpiece are disclosed. The method comprises coupling an electrostatic voltmeter to a conductor, coupling a charge-adjustment system to the conductor, and coupling the conductor to the workpiece. A level of charge in the workpiece is adjusted, via the conductor, with the charge-adjustment circuit and a voltage of the workpiece is monitored, via the conductor, with the electrostatic voltmeter. A controller may be used to adjust the charge on the workpiece based upon the monitored voltage.

In accordance with the present disclosure, voltage sensing techniques using a voltage sensing device are employed to identify sources of electromagnetic radiation and provide warnings to a user about high levels of electromagnetic radiation. By way of example, the voltage sensing device may be a wearable device and may provide auditory, visual, and tactile alerts to a user.

In accordance with the present disclosure, voltage sensing techniques using a voltage sensing device are employed to identify sources of electromagnetic radiation and provide warnings to a user about high levels of electromagnetic radiation. By way of example, the voltage sensing device may be a wearable device and may provide auditory, visual, and tactile alerts to a user.

A staple gun and a method of using the same. A stapling mechanism in the housing is activated to deliver a staple through an aperture in a housing wall and drive the staple into a surface around a stack of one or more electric cables. The gun includes a reciprocating cable guide for centering the gun on the stack of cables and closing a safety switch to permit the gun's trigger to be activated. A spacer extending outwardly from the housing wall rests on the upper surface of the cable stack. The spacer and a bumper that engages a hammer of the stapling mechanism provide for automatic depth adjustment when driving the staple into the surface. A reciprocating cable guard extending outwardly from the housing wall is positioned between the stack of cables and the staple to aid in preventing the staple from piercing the cable.

A sensor device for detecting voltage in a conductor cable includes a sense electrode to be disposed over a surface of the conductor cable to cover a sense region having a sense axial width and a sense circumferential length and a reference electrode to be disposed over the surface of the conductor cable to cover a reference region. The reference region has an axial position adjacent the axial position of the sense region and has a reference circumferential length greater than the sense circumferential length. The sensor device further includes a charge measurement circuit connected in series between the sense electrode and the reference electrode to measure a charge measurement and circuitry to compare the charge measurement to a threshold to detect a presence of the voltage in the conductor cable.

A sensor device for detecting voltage in a conductor cable includes a sense electrode to be disposed over a surface of the conductor cable to cover a sense region having a sense axial width and a sense circumferential length and a reference electrode to be disposed over the surface of the conductor cable to cover a reference region. The reference region has an axial position adjacent the axial position of the sense region and has a reference circumferential length greater than the sense circumferential length. The sensor device further includes a charge measurement circuit connected in series between the sense electrode and the reference electrode to measure a charge measurement and circuitry to compare the charge measurement to a threshold to detect a presence of the voltage in the conductor cable.

A connector device is provided, including a vehicle connector and a charging connector which are detachably connected to each other. The vehicle connector has electric power line terminals substantially coplanar with a flat connection surface and a plurality of signal line terminals which are arranged on a radial outside of the electric power line terminals The charging connector has electric power line terminals and a plurality of signal line terminals which are arranged substantially coplanar with a flat connection surface and are respectively in surface contact with the electric power line terminals and the plurality of signal line terminals during the connection with the vehicle connector. The connector connection determination device determines whether a connection state between the two connectors according to a detection result of whether the signal line terminals are in contact with each other when the charging connector is attached to the vehicle connector.