Deck 102 Flashcards
What is the priority of the FDNY at a Con Ed Generating Station with a fire in a large energized electrical transformer.
To apply water via master stream devices to exposed, unaffected equipment to save it. Handlines shall NEVER be used on energized electrical components at Con Edisonfacilities. 338, 2.1Salt water shall never be used. 7.3No additives including any type of foam shall be used. 7.6
The decision to apply water streams to electrical components at Con Edison facilities will not be undertaken by first responding units. Who will authorize the use of water at Con Ed Generating System?
This decision can only be made by aChief Officer above the rank of Deputy Chief (or a Deputy Chief operating as Car 421 orCar 422) in consultation with the Con Edison White Hat at the scene. 338, 4.2
What is the primary means of applying water to energized electrical components?
The primary means of applying water to energized electrical components is through the use of a Tower Ladder. 338, 5.4
All Tower Ladder Companies are equipped with stacked tips to supply a solid stream and the Akron Turbomaster Nozzle which has an adjustable stream pattern from straight to fog position. 338 5.4.2
The Aquastream Master Stream Nozzle carried by all Aerial Ladder and Engine Companies is factory pre-set to a fog stream pattern of 130 degrees. This nozzle shall not be used because it does not provide enough stream penetration to allow for maintaining safe operating distances. 338 5.5 Note.
The following are the minimum safe operating distances for applying water on energizedor de-energized electrical components:• 15 feet on live 138 kV electrical components for 30° or greater fog streams.• 75 feet on live 138 kV electrical components for all straight or solid streams andstreams less than 30° fog. This distance is equal to approximately one and onehalf(1½) lengths of hose.• 25 feet on live 345 kV electrical components for 30° or greater fog streams.This distance is equal to approximately one-half (½) length of hose.• 125 feet on live 345 kV electrical components for all straight or solid streamsand streams less than 30° fog. This distance is equal to approximately two andone-half (2 ½) lengths of hose. 338, 5.3
345,000V safe distance = 18 feet15,000V to 38,000V safe distance =10 feet338 add2, 2.2When raising aerial ladders and tower ladder buckets, maintain an 18-foot safe clearancehorizontally from the substation’s exterior fence line and do not place portable ladders,aerial ladders or tower ladder booms or buckets against or over the wall or fence.338 add2, 6
Who determines the safe operating positioning of the apparatus?
The safe operating position for the apparatus will be determined in conjunction with Con Edison personnel. 338, 5.4.5
Once the safe operating position of TL is determined, what is the order of operations for applying water on energized electrical equipment?
all members are removed from the basketthe basket is then raised to operating positionAll members are then removed from the apparatus.Confirm all FDNY equipment inside the Con Edison property line is connected to the facility’s station ground grid prior to applying water.The stream will then be applied to the target area.338, 5.4.5, 5.4.6, 5.6.1
Where would you expect to find Edisol XT?
Edisol XT is viscous insulating oil currently used in capacitor banks. PCB containingcapacitor banks have been removed from the system but as a precaution, treat allcapacitor fires as PCB incidents. 338 add2, 3.2
If you had a leak of Dielectric Fluid at a Sub Station, you could use a section valve to control it? Dielectric Fluid – This non-PCB insulating oil, resembling cooking oil, is used to coolunderground transmission lines. The oil is pumped under pressure through feeder lineswhich are buried in some places as shallow as 2½ feet below the surface.
No, Because there are no section valves on the feeder lines, leaking oil can result in alarge oil spill. An underground leak may result in oil seeping up from the ground.These electrical feeder lines carry 345kV.338 add2, 3.3.a
Where would you expect to find Sulfuric Acid?
Sulfuric Acid – The led/acid batteries found in the substation’s battery room contain 5 to10 gallons of 30% to 40% acid. 338 add2 3.4
What are the characteristics of Sulfur Hexafluoride Gas (SF6) ?
ColorlessOdorless5x HEAVIER than air.an asphyxiation hazard in confined areas and below grade spaces.
Thermal decomposition of SF6 gas produces what two chemicals?
Hydrogen Fluoride (HF) – This gas has a strong irritating odor similar to rotteneggs. Prolonged exposure to HF gas will desensitize your sense of smell makingit undetectable. Inhaling HF gas can result in immediate or delayed onset pulmonary edema.Metal Fluoride powder – This white powder is a byproduct of thermaldecomposition of SF6 gas and is extremely corrosive to bare skin. The initialsign of exposure would be reddening of the skin. Skin contact and inhalationmust be avoided.338 add2 3.5
T?F As the first Chief Officer on scene, it is your responsibility to retrieve information from the Lockbox located inside the substation.
False. Respond to the designated muster site. Meet and consult with the Con Edison White Hat at the muster site.Have White Hat retrieve information from the Lockbox located inside the substation.338 add2, 4.1,2
What is in the Lockbox at a Con Ed substation?
The Lockbox contains … PCB information, overhead photo, a site diagram and list of the hazards present at the substation.338 add2, 4.2
T?F Foam can be used at a Transformer Fire?
True. Transformer fire – A transformer fire is an oil fire. The burning oil will be difficult toextinguish because the transformer shell will act as a barrier and shield the fire from wateror foam application.338 add2, 5.3
