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Home Portable Generator Sub-Panel Installation in 2019 Copyright-JunctionBoxes-460x613-IMG_6567

Copyright-JunctionBoxes-460×613-IMG_6567

The arrow indicates the change from two single pole circuit breakers to one, two pole, 30 amp circuit breaker to feed the new generator sub-panel.

Two large junction boxeswere installed close to the main electrical panel and in the ceiling so that the circuit wires could be spliced and extended to the new generator sub-panel.

Because the junction boxes are metal, they are required to be grounded by using a green ground screw with one of the grounding conductors under it.
Another view of the large junction boxes located in the accessible ceiling.