test equipment

I recently purchased a fluke insulation tester. (1507 is the model number, I think.) I tested some wiring today and I was getting about 550 megohms between the conductors using 500V test voltage. When I used 1000V test voltage I got 11.5 gigaohms. - I have very little experience using an...

Hi I would like to get input/suggestions from electricians as I am diversifying my business to have more test equipment specifically for electrical contractors. Presently I offer for rent and purchase electrical power analyzers such as power quality analyzers and power/energy demand analyzers...