Yes, wirelessly connected smoke detectors can meet code as long as they meet relevant standards, such as those set by the National Fire Protection Association (NFPA). These standards, like NFPA 72, outline the manufacturing, installation, and testing requirements for wireless smoke detectors. Specifically, they must have reliable signal transmission between alarms (at least once every 200 seconds), have failure modes that indicate a system failure, and be regularly inspected and maintained.
anka security considers the following key considerations to be required:
UL 217 and NFPA 72 Compliance:
Wirelessly connected smoke detectors should be listed under UL 217 and classified as low-power systems by NFPA 72.
Interconnection Requirements:
While the interconnect itself can be wireless, some local codes may still require a hardwired connection in certain circumstances, especially for new construction or major renovations.
Power Sources:
Wirelessly connected smoke detectors can be powered by either batteries or line voltage. If battery-powered detectors are used, they should have long-life batteries or be part of a monitored system.
Maintenance and Testing:
Like any smoke alarm system, wirelessly connected systems require regular testing and maintenance to ensure proper operation.
Local Codes:
It is vital to check local building codes as they may have specific requirements for the type and interconnection of smoke alarms.
Combination Systems:
Some systems combine hardwired and wireless interconnection for added flexibility.
Exceptions:
In some cases, such as additions or alterations to existing buildings, interconnection may not be required if smoke alarms outside the new construction area are not already interconnected or cannot be interconnected with the new equipment.