The REMLIVE RL-4 contains electronic circuits which connect via terminals and user wiring to a point as close as possible to the point of the electrical supply to be monitored – usually immediately after the disconnect switch.
The concept of operation is that when the power is present, then the LED display in the REMLIVE RL-4 would illuminate with some intense, flashing LED's that attract attention.
These LED's remain operational until all voltage has decayed to less than 24 volts on all connections. The person performing the work in the isolator or control panel cannot fail to see the flashes immediately upon opening the enclosure door and therefore receives the warning that the equipment still has a potentially lethal condition.
The legend on REMLIVE RL-4 advises this person to employ other safety procedures and test before touching.
Another function of REMLIVE RL-4 is to give a continuous reminder to personnel when working on or near live equipment, for test and maintenance purposes, that the situation is one that needs additional care due to the presence of potentially lethal voltage.
