San Francisco has deleted language from the 2010 California Electrical Code from this paragraph.(E) Headroom. The minimum headroom of working spaces about service equipment, switchboards, panelboards or motor control centers shall be 2.0 m (6-1/2 ft). Where the electrical equipment exceeds 2.0 m (6-1/2 ft) in height, the minimum headroom shall not be less than the height of the equipment.
Chapter 2. Wiring and Protection