It can occur due to overloaded circuits, short circuits, or ground faults. Solution: Identify the Cause: Check if the breaker is tripping due to overloading. This often happens when too many devices are plugged into one circuit. Each DISTRIBUTION BOX and controller must be grounded. 26 mm 2 (10 AWG) ground wire must be used, and in all other markets a 6 mm 2 must be used. Grounding of the units: Attach a ground wire from one of. Unsound wiring The wiring in the distribution box should be firm and reliable to avoid loosening or falling off. Preparation: First, you need to prepare some necessary tools, including grounding wire, grounding rod, voltmeter, insulating gloves and. Electrical ground becomes disconnected, corroded, weak, intermittent, or lost: what happens? This document describes the loss of both neutral (utility company) and local building ground connections at a building leading to loss of electrical power and dangerous risk of electrocution.