Question 1 of 10
What is the minimum required working space depth in front of a panelboard, as per NEC?
NEC requires a minimum of 36 inches (3 ft) working space depth in front of a panelboard.
Question 2 of 10
What is the minimum width of the working space required in front of a panelboard?
The minimum width for the working space in front of a panelboard is 30 inches.
Question 3 of 10
What is the maximum height above the floor that the mounting height of panelboards should not exceed?
The maximum mounting height of panelboards should not exceed 6 feet, 7 inches above the floor, as per NEC 404.8.
Question 4 of 10
What is the required height of the dedicated electrical space above the floor?
The dedicated electrical space for a panelboard must extend from the floor to a height of 6 feet.
Question 5 of 10
Where are electrical panels prohibited from being installed?
Electrical panels cannot be installed in bathrooms, closets, or inside cabinets, and other restricted locations, as per NEC 240.24.
Question 6 of 10
What should be separated at sub-panels but bonded at the main service panel?
The neutral and ground conductors must be separated at sub-panels but bonded at the main service panel.
Question 7 of 10
What is the purpose of grounding and bonding in an electrical panel?
Grounding and bonding are crucial for safety and preventing electrical shocks by providing a low-impedance path for fault currents.
Question 8 of 10
According to the provided text, a panelboard used as service equipment does NOT require overcurrent protection on the line side if it has:
A panelboard used as service equipment does not require over-current protection on the line side if it has multiple over-current devices.
Question 9 of 10
What is the maximum permitted distance that a wireway can extend beyond the front of a panelboard?
The maximum permitted distance for a wireway beyond the front of a panelboard is 6 inches.
Question 10 of 10
What is the minimum service size in Amperes mentioned in the article?
The minimum size of the main service is 100A, as mentioned in the article.
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