Code Violation



No, installing keyed switches in a stairwell for lighting is not explicitly prohibited by the National Electrical Code (NEC).Reasons for Installing Keyed Switches



Security

Restricting access to the lighting controls can enhance security by preventing unauthorized individuals from turning off the lights in a stairwell.

Energy efficiency

Keyed switches can help reduce energy consumption by requiring keys to turn on the lights, thereby eliminating accidental or unnecessary lighting.

Maintenance

Controlled access to the switches can minimize tampering and reduce maintenance costs.

Considerations



Emergency egress

The keyed switches should not impede the ability of occupants to evacuate the stairwell in an emergency. The switches should be located in an accessible and easily identifiable location.

Key management

Adequate key control measures should be implemented to prevent unauthorized access to the keys.

Accessibility

Keyed switches may pose challenges for individuals with disabilities, such as those who use wheelchairs or have difficulty manipulating keys. Alternative access methods, such as motion sensors, should be considered.

Recommendations: While not a code violation, it is generally not recommended to install keyed switches in stairwells unless there are compelling security or energy efficiency benefits. If keyed switches are deemed necessary, proper key management and accessibility considerations should be prioritized.* Consider alternative access methods, such as occupancy sensors or photocells, to enhance convenience and accessibility. Flag for review