Field line test equipment.
Insulation resistance tester under high voltage (Megger), Wheatstone resistance bridge and Varley fault location bridge.
Used for measuring the field cable distance from the measurement point to the point of failure.
Used by the IDF during the Sinai Campaign (1956) and the Six Day War (1967).
Manufactured by Evershed & Vignoles, Britain. Designated Series 2 Bridge Megger.
