Stakeless earth ground clamp
14 February 2017
With the new Fluke 1630-2 FC Stakeless Earth Ground Clamp, electricians and maintenance technicians can measure earth ground loop resistances indoors/outdoors for multi-grounded systems using only the heavy-duty, dual-clamp jaw, so measurements can be taken quickly and safely without the need to disconnect then reconnect the earth electrode from the system.
The device also enables the user to access and share data remotely with a team via the Fluke Connect app.
The clamp automatically records data at pre-set intervals and saves up to 32,760 measurements in memory at the set logging intervals. Its heavy-duty clamp jaw is designed to stay in alignment and calibration even in the harshest industrial environments.
The clamp measures earth ground loop resistances for multi-grounded systems using the dual-clamp jaw. Fluke says this test technique eliminates the dangerous and time-consuming activity of disconnecting parallel grounds, as well as the process of finding suitable locations for auxiliary test stakes. Ground tests can be performed in places that were previously difficult: inside buildings, on power pylons or anywhere without access to soil to place auxiliary test stakes.
With this test method, a two-process measurement is made around the earth ground wire or bus bar using the specially-designed jaw of the 1630-2 FC clamp. Auxiliary test stakes are not used at all. A known voltage is induced by the source in the clamp, and the current is measured by the sensor in the clamp. The tester automatically determines the earth loop resistance for this section of the earthing system.
The Fluke 1630-2 FC is part of Fluke Connect - a system of more than 40 wireless test tools that communicate via the Fluke Connect app, or Fluke Connect Assets software, a cloud-based solution that gathers measurements to provide a comprehensive view of critical equipment status - allowing technicians to view, record, and share measurements from the clamp in real time via their smartphones or tablets and automatically upload them to Fluke Cloud storage along with tags and the GPS location of assets.
The clamp is also available as a non-Fluke Connect model.