# What is the minimum working space required around electrical equipment?

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## What is the minimum clearance requirement to maintain sufficient access working space around equipment?

Where energized parts are exposed, the minimum clear work space shall be not less than 2.0 m (6 ½ ft) high (measured vertically from the floor or platform) and the width of the equipment or 914 mm (3 ft) wide (measured parallel to the equipment), whichever is greater.

## What is the minimum required height of the working space?

Like the dimension for width of working space, there is a minimum dimension for working space height. If the height of the electrical equipment is 61/2 feet or less, the minimum height shall be 61/2 feet. For example, the height of a panelboard installed on a concrete block wall is 5 feet, 10 inches.

## What is minimum electrical clearance?

110-26 of the National Electrical Code (NEC): 1) at least a 3-ft clearance in front of all electrical equipment; 2) a 30 in. -wide working space in front of equipment operating at 600V or less; and 3) minimum headroom clearance of 6 ft or the height of the equipment, whichever is greater.

## What is the minimum required height of the clear working space in front of a motor control center that is 7 ft tall?

“Headroom” is another way we refer to the height of a working space. For service equipment, switchboards, panelboards, and motor control equipment, the headroom in front of equipment must be at least 6½ ft, measured from the grade, floor, or platform [110.26(E)].

## What is the minimum height of an electrical panel?

Height. The minimum height for an electrical box is 4 feet, although the ideal height is between 5 feet and 6 feet. The maximum switch height is 6 feet.

## What is the minimum recommended space in an office per person?

A Rule of Thumb

The company suggests the following as a starting point for determining adequate square footage: Offices: 100 to 300 square feet depending on the employee. Open-area workstations: 36 to 100 square feet per person. Reception area: 100 to 400 square feet.

## What is the NEC code for panel clearance?

The Occupational Safety and Health Administration (OSHA) and the National Electrical Code (NEC), require that electrical panels have a minimum of 3 feet (36 inches) of clearance and a minimum headroom of 6.5 feet or the height of the equipment whichever is greater.

## What is an electrical clearance?

The electrical clearance is the electrical isolation between two conductive components, whereas the creepage indicates the conduction of electricity across the surface of a nonconductive component. The clearance and creepage distance are two important parameters while designing an electrical assembly.

## What is the clearance above an electrical panel?

The height of the working space must be at 6-1/2 feet. Other electrical equipment located above or below the panel cannot protrude more than 6-inches beyond the front of the panel.

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