Insulation Tester Schematics

Electronics Infoline Web

Understanding insulation resistance testing

http://www.ecmweb.com/ar/electric_understanding_insulation_resistance/

consists of a hand-driven DC generator and a direct reading ohm meter

http://www.tpub.com/doeelecscience/electricalscience2172.htm

http://www.dundeecoll.ac.uk/Sections/CS/Staff/al_radio/bigvolt.htm

http://www.ulb.ac.be/polytech/laborulb/pdmgen/theorymegger.pdf

http://www.aemc.com/techinfo/techworkbooks/megohmmeters/tech_megohm.pdf

http://www.informationstore.net/fluke/efulfillment.asp?publication=10307-eng

Measurements can be made between pairs of lines and the shield connected to the ground, or between the metal shield and ground

http://www.aemc.com/techinfo/appnotes/megohmmeters/APP-Megohm-TelephoneCables.pdf

http://agingaircraft2001.com/papers/IndexPDFs/PS22.pdf