Glossary of Firefighting - L

L

• Ladder company: A group of fire fighters, officers and engineers that staff a ladder truck.
• Level I, II, III Incident: A HAZMAT term denoting the severity of the incident and the type of response that may be necessary, where Level III is the largest or most dangerous.
• Life safety code: NFPA publication. Originally known as the "Building Exits Code."
• Life line: A trademark for a wireless emergency call unit that triggers a telephone call to an emergency dispatcher when a button is pressed.
• Line or Hose Line a line of hose, referred to by its size i.e. 1"3/4, 1 inch, 2 Inch, 5 inch
• Line loss: See friction loss.
• LODD (Line of Duty Death) The death of a fire fighter while on-duty.
• Live line: A fire hose under pressure from a pump. Also, an energized electrical line that may cause a hazard to firefighters.
• Loaded stream: An obsolete fire extinguisher stream that has had a chemical fire suppression agent added and is discharged by compressed gas or by inverting the tank to mix chemicals to produce gas pressure. Now outlawed by OSHA regulation 1910.157(c)(5).