Q: In what cases would a fire department connection be omitted from a fire sprinkler system installation?
When the building is inaccessible to the fire department
When the sprinkler system exceeds the pumping capacity of the fire department
In single-story buildings that do not exceed 2000 ft2 (186 m2) in size
All of the above
Answer: D) All of the above
Reference: FIRE PROTECTION HANDBOOK 20th
15-66 SECTION 15 ■ Water Supplies for Fixed Fire Protection
Fire Department Connections
Under fire conditions that cause a considerable number of sprinklers to operate, public water or tank supplies may not provide water at sufficient pressure for effective sprinkler discharge and distribution. In addition, the pressure in many public water supplies to sprinkler systems may be reduced materially by hose streams from hydrants. In such cases, a connection through which the fire department can pump water into the sprinkler system provides an important secondary supply. A fire department connection is a standard part of a fire sprinkler system installation and would be omitted only if the building were inaccessible to the fire department or the sprinkler system exceeded the pumping capacity of the fire department, such as a deluge system. A fire department connection may also be omitted from a single-story building that does not exceed 2000 ft2 (186 m2) in size.
Explanation
A fire department connection is considered a standard component of fire sprinkler system installations. and it serves as secondary water supply It’s typically included unless specific conditions apply. There are certain situations where omitting the fire department connection might be acceptable:
If the building is inaccessible to the fire department.
If the sprinkler system exceeds the pumping capacity of the fire department, such as with a deluge system where all sprinklers activate simultaneously.
In small single-story buildings under a ( 2000 ft²).