Absence Of Voltage Tester Technology

Mounting a voltage test station vts at this wastewater treatment plant reduced a 45 minute 2 man lockout tagout loto task down to a 5 minute 1 man loto task.

Absence of voltage tester technology.

The verisafe absence of voltage tester minimizes risk by verifying the absence of voltage before equipment is accessed making it easier for qualified electrical workers to determine an electrically safe environment in a fraction of the time compared to hand held portable test instruments. Verisafe absence of voltage tester. Verisafe is the first of its kind voltage tester that determines the absence of voltage with just a push of a button. It is further constructed to resist factors that could affect its accuracy and functionality such as.

The verisafe absence of voltage tester minimizes risk by verifying the absence of voltage before equipment is accessed. The avt absence of voltage tester is a simple fail safe and intuitive product that combines the process of voltage verification and ground fault indication. Although the test portals reduce exposure when verifying the absence of voltage this process working with hand tools via a portal does not meet the requirements of the new exception 1 in 120 5 7 because. When nfpa 70e released its 2018 update a new exception was included that allows avts listed to ul 1436 to be used to verify the absence of voltage instead of a handheld voltmeter.

The new exception describes an absence of voltage tester avt. The new language in nfpa 70e 2018 article 120 5 7 states. The procedure for verifying the absence of voltage gets an upgrade. The safe way to verify the absence of voltage the verisafe absence of voltage tester minimizes risk by verifying the absence of voltage before equipment is.

Nfpa 70e requires that the operation of the test instrument be verified on any known voltage source before and after an absence of voltage test is performed in other words connect your meter to an outlet or a proving unit whose voltage you already know and make sure your meter reads the correct voltage. More importantly when using a vts the risk of energy exposure was mitigated. The permanently mounted test device is different from the test portal interface that is sometimes used with a handheld voltage tester. The process used by avts today is based on the steps described in nfpa 70e.

An adequately rated permanently mounted test device shall be permitted to be used to verify the absence of voltage of the conductors or circuit parts at the work location provided it meets all the.