In what location is it not allowed to have a service disconnecting means?

In the context of the National Electrical Code (NEC), the presence and accessibility of service disconnecting means are critical for safety and convenience. Bathrooms are classified as one of the specific locations where the installation of service disconnecting means is prohibited due to safety concerns related to electrical hazards in wet areas. The NEC recognizes that bathrooms typically have higher moisture levels, which can increase the risk of electrical shock.

Given this understanding, placing a service disconnect in a bathroom can pose danger not only to individuals using the bathroom but also complicates emergency response situations since these locations can be cramped and potentially hazardous. In contrast, areas such as storage rooms, sprinkler rooms, and garages are not explicitly restricted for the placement of service disconnects under the NEC, as they generally provide more controlled environments and better accessibility for maintenance and operation.

Thus, the limitation on having a service disconnecting means in a bathroom is rooted in the NEC's commitment to minimizing risk in potentially hazardous locations.