greenjourneyman
Member
- Location
- montana
I don't have access to nfpa 72 @ the time. Do smokes have to be on own crk? If it matters it is a remodel.thanks
I don't have access to nfpa 72 @ the time. Do smokes have to be on own crk? If it matters it is a remodel.thanks
You are inviting the HO to defeat the alarms by turning off the breaker and removing the batteries to "shut them up" if you run them on their own circuit!:happyyes:
2007 NFPA 72 Household Smoke Detectors
11.6.3 AC Primary Power Source. The ac power source shall
comply with the following conditions:
(4) AC primary (main) power shall be supplied either from a
dedicated branch circuit or the unswitched portion of a
branch circuit also used for power and lighting.
and if not a household
4.4.1.4.1 Dedicated Branch Circuit. A dedicated branch circuit
of one of the following shall supply primary power:
There has to be some sort of reasoning or rational for this change but I am just not seeing it.South Carolina amended the NEC such that smokes could NOT be supplied from AFCI breakers. Forces one to have a dedicated breaker.
RC
2007 NFPA 72 Household Smoke Detectors
11.6.3 AC Primary Power Source. The ac power source shall
comply with the following conditions:
(4) AC primary (main) power shall be supplied either from a
dedicated branch circuit or the unswitched portion of a
branch circuit also used for power and lighting.
and if not a household
4.4.1.4.1 Dedicated Branch Circuit. A dedicated branch circuit
of one of the following shall supply primary power:
When is a smoke alarm used outside a household?
Bob I think that you meant to ask about a smoke detector.
Single- and Multiple-station Smoke Alarms
(UTGT)
USE
This category covers single- and multiple-station smoke alarms intended
to be employed in indoor locations where sensitivity testing and maintenance
of alarms, per section 10.4.4 of ANSI/NFPA 72, ??National Fire Alarm
Code?? (2007), is required by code, Authorities Having Jurisdiction, or other
requirement.
This category also covers single- and multiple-station smoke alarms that
have been performance tested to a minimum 10-year extended battery life
under normal ambient conditions. Unless otherwise noted in the individual
Listings, the alarms are intended for flush-mounted installation only, and
are not intended for use on surface-mounted boxes.
This category also covers supplementary devices and accessories for use
with these units, such as a remote horn. These products are identified in the
individual Listings.
DETECTORS, AUTOMATIC FIRE
(UPLV)
These are either individual devices or prescribed combinations of
devices designed to detect flame, heat, smoke, or combustion gases resulting
from a fire and to automatically operate electrical signaling contacts.
The signaling contacts may be integral parts of an individual device or
parts of a separate device to which the detecting element is connected as
an extended component.
The signaling contacts of the detector are intended to be connected to
the circuit conductors of fire protective signaling systems recognized by
the National Fire Protection Association Standards, so that the fire alarm
signal initiated by the detector will be indicated by the system.