STEAM

Question 1

Whats a good indication of a steam vault in the street ?

Answer 1

Concrete slabs typically cover steam vaults
with access manholes placed in pairs.
Sec 1.1

Question 2

Steam pressures in generating plants can be as high as ________ psi with temperatures
reaching _____ ??

Answer 2

2,000 psi, 900ºF

Sec 2.2

Question 3

Steam pressures in the buried supply piping and in supplied buildings can be as high as ______ psi and temperatures as high as _____ ??

Answer 3

170 psi, 350ºF.

Sec 2.2

Question 4

Water slugs can be pushed through the piping by the steam at speeds as high as ??

Answer 4

200 mph

Sec 3.1

Question 5

Never enter a Con Edison generating plant without Con Ed personnel. Instead,
respond to the designated mustering site outside the plant.
Who will mitigate the emergency ?
What do we enter the plant for ?

Answer 5

 Plant personnel will mitigate the emergency. FDNY should only enter the plant to
perform search and rescue for missing plant personnel.
Sec 4.1

Question 6

Why Is a steam break considered a has-mat incident ?

Answer 6

Underground steam pipes are most commonly wrapped in asbestos insulation and a
HELB will likely result in an asbestos release that spreads over a large area
Sec 4.2

Question 7

Con Edison may
place vent stacks over minor steam leaks, to direct the steam up over the roadway. If a vent
pipe has a _______ on the top of it, this indicates that the steam is the result of a water
leak, not a leaking steam main.

Answer 7

Blue stripe

Sec 4.3

Question 8

High pressure steam risers can be found in the walls on all floors of supplied buildings. They are typically insulated with what ?

Answer 8

Asbestos
A HELB in a building will likely release asbestos inside the building
Sec 4.4

Question 9

Buildings supplied with steam will have a steam control room filled with pipes.
There will be a number of valves to control the supply of steam. In a situation like this it is wise to shut as many valves as possible
Agree or Disagree

Answer 9

DISAGREE!!
Do not randomly
shut steam valves inside of a supplied building.
Sec 4.4

Question 10

If a steam valve is shut who is notified ?

Answer 10

Notify Con Edison if a valve is shut

Sec 4.4

Question 11

What valve can members shut in an emergency ?

Can it be reopened ?

Answer 11

In an emergency, members may shut the Inside Service Valve. It will be labeled
and sealed.
If possible, wait for Con Ed steam personnel to shut the necessary valves.
NO!! Do Not reopen any shut valve!
Sec 4.4

Question 12

In an emergency can FD members shut the building steam shut off located outside ?

Answer 12

NO!!
There is a building steam shutoff located outside the building. FD members
should not attempt to shut this valve. This valve should only be shut by Con Edison steam personnel.
Sec 4.4

Question 13

What do we monitor for at a steam main break ?

Answer 13

A ruptured steam main could be the result of a terrorist attack. Monitor for the
presence of Radiological contaminants. Responding units shall monitor radiation
detection devices upon receipt of an alarm for a ruptured steam main
Sec 5