// CODE SNIPPET
12.3.2 Class B
JUMP TO FULL CODE CHAPTER
A pathway shall be designated as Class B when it performs as follows:
- It does not include a redundant path.
- Operational capability stops at a single open.
- Conditions that affect the intended operation of the path are annunciated as a trouble signal.
- Operational capability on metallic conductors is maintained during the application of a single ground fault.
- A single ground condition on metallic conductors results in the annunciation of a trouble signal.
Related Code Sections
12.3.2 Circuits and Pathways, Class B
A pathway shall be designated as Class B when it performs as follows: It does not include a redundant path. Operational capability stops ...
National Fire Alarm and Signaling Code 2019 of Maine > 12 Circuits and Pathways > 12.3* Pathway Class Designations > 12.3.2 Class B
126.96.36.199.1 Fire Protection Systems, Class B Fires
Large-capacity dry chemical extinguishers of 10 lb (4.54 kg) or greater and a discharge rate of 1 lb/sec (0.45 kg/sec) or more shall be used ...
Fire Code 2018 of Maine > 13 Fire Protection Systems > 13.6 Portable Fire Extinguishers > 13.6.2 Selection of Portable Fire Extinguishers > 188.8.131.52 Selection for Specific Hazards > 184.108.40.206.1 Class B Fires
220.127.116.11 Definitions, Class B Fires.
Class B fires are fires in flammable liquids, combustible liquids, petroleum greases, tars, oils, oil-based paints, solvents, lacquers, alcohols ...
Fire Code 2018 of Maine > 3 Definitions > 3.3 General Definitions > 3.3.117 Fires, Classification Of > 18.104.22.168 Class B Fires.
1505.3 Roof Assemblies and Rooftop Structures, Class B Roof Assemblies
Class B roof assemblies are those that are effective against moderate fire-test exposure. Class B roof assemblies and roof coverings shall be listed ...
Commercial Building Code of the MUBEC and MUBC > 15 Roof Assemblies and Rooftop Structures > 1505 Fire Classification > 1505.3 Class B Roof Assemblies
906.3.2 Fire Protection Systems, Class B Fire Hazards
Portable fire extinguishers for occupancies involving flammable or combustible liquids with depths less than or equal to 0.25-inch (6.4 mm) shall ...
Commercial Building Code of the MUBEC and MUBC > 9 Fire Protection Systems > 906 Portable Fire Extinguishers > 906.3 Size and Distribution > 906.3.2 Class B Fire Hazards