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auc > AUC 150 IROQUOIS PIPE LINE > Flashcards

AUC 150 IROQUOIS PIPE LINE Flashcards

1
Q

The Iroquois pipeline consists primarily of

A

A single 24 inch (OD) high strength steel pipeline, various valves and a meter/regulating station interconnection with Con Edison.

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2
Q

The pipeline carries

A

Natural gas that is under pressure in a gaseous state.

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3
Q

Natural gas is

A

Non toxic. lighter than air, can be an asphyxiant as it displaces oxygen, combustible in concentrations from approximately 5% to 15% and will naturally disperse into the atmosphere. It is odorless and colorless in its natural state, however mercaptan is added to give the gas an odor for detection purposes

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4
Q

Within NYC the Iroquois pipeline can be subdivided into

A

3 sections.

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5
Q

Each section can be

A

Isolated remotely by the Iroquois Gas Control Center or manually in the event of an emergency

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6
Q

Automatic valves require

A

No action on the part of the FDNY. These valves are continuously monitored and can be remotely controlled by the Iroquois Gas Control Center in Shelton Connecticut, which is staffed 24 hours a day. These valves have manual shutdown capabilities.

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7
Q

In the event these automatic valves require manual shutdown, this will be performed by

A

Con Edison.Iroquois qualified personnel when ordered by the FDNY IC. FDNY personnel will be familiarized with these manual shutdown procedures during drills

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8
Q

Location and number of automatic valves

A

There are 2 automatic valves. The 1st valve is located where the pipe makes landfall in Hunts Point. The 2nd valve is located within the Hunts Point Facility.

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9
Q

Valve operations

A

Inside the valve buildings are controls to operate the valves. The smaller cabinets contain 2 sets of controls to manually open or close the valves by utilizing the gas pressure in the pipe line or by hand pumping the valves. The cabinets also contain directions and diagrams on how to operate the valves.

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10
Q

Back Flow Prevention Valve

A

There is a buried check valve located at the meter/regulating station that will prevent any backflow from the Con Edison system

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11
Q

There is a buried manual valve located

A

Outside the meter/regulating station at Food Center Drive. The valve stem is covered by a flush mounted valve box similar to a Con Ed manhole cover.

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12
Q

How do we manually turn off the valve

A

213 FULL turns to close. There is a special manual wrench for this valve just inside the entrance gate with a sign attached identifying it. Rescue 3 carries a special hydraulic wrench for this valve and a backup hydraulic wrench is stored at the FDNY Command Post building at 500 Food Center Drive

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13
Q

The ICP is located at

A

500 Food Center Drive. A sign is posted designating “FDNY ICP” as well as a Con Ed “White Hat” sign at this location

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14
Q

The ICP structure will contain

A 
Hardwire Telephone
Emergency phone numbers
Special Wrench
Windsock
Maps of the pipeline run and facility
This structure will provide the IC with a sheltered environment and will be the focal point to conduct initial operations
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15
Q

Designated Con Ed personnel on scene prior to Iroquois staff may act as a

A

representative of Iroquois until such time as Iroquois staff arrives at the scene

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16
Q

All valve operations shall be

A

Coordinated with Con Ed/Iroquois and emergency responders through the FDNY

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17
Q

No valves should be opened or closed without the approval of the FDNY IC in consultation with Con Ed/Iroquois personnel EXCEPT

A

In the event of immediate threat to life or property

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18
Q

Total number of valves is

A

3
2 automatic
1 manual

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19
Q

What is the primary method to close a valve

A

Use the reserve gas to close the valve

Push in the RED handle

20
Q

To use the manual pump handle

A

Turn the lever under the RED handle to the 9 O clock position, insert the pump handle and begin pumping

21
Q

What should be checked prior to attempting to close a valve

A

The valve flow indicator

22
Q

The UAC cards shall contain BOX #

A

8600 and the number of units for the 1st alarm response assignment. Instructions on the card will indicate if the unit is to respond to the ICP or the Staging Area

23
Q

Each 1st thru 3rd alarm unit has been issued

A

2 Unit Alarm Assignment Cards. One card shall be carried on the apparatus, the other card shall be placed in a prominent clearly marked and protected place at the house watch, for use by relocated units

24
Q

Duties of the units may involve

A

Manually shutting down valves and/or patrolling the pipeline to locate the reported leak or fire. The dispatcher shall provide a full 1st alarm assignment as designated on the Unit Alarm Assignment/Instruction Card.

25
Q

How is leak detection accomplished

A

A dynamic leak detection system is incorporated intro the design of the pipeline. Leak detection is accomplished by monitoring a pressure in the pipeline.

26
Q

When the system is automatically shut down due to an inconsistency of PSI in the gas pipeline for a specific period of time, Iroquois will

A

Make an immediate telephone notification to the Bronx Communications Office and Con Edison

27
Q

Isolation of the pipeline is vital in controlling the gas leak. Isolation duties are typically carried out by

A

Remotely shutting down valves from the Iroquois Gas Control Center

28
Q

The initial actions of units responding to the pipeline boxes are to set up a

A

Perimeter and eliminate sources of ignition. Natural gas is lighter than air and will naturally disperse into the atmosphere. If natural gas has ignited consider shutting down the gas supply

29
Q

Due to the extremely high pressure found in the pipeline system, consideration shall be given to allow escaping gas to

A

Naturally disperse into the atmosphere WITHOUT the use of fog lines to assist in the dispersal. The use of fog lines may actually hinder the dissipation of the gas. The IC must evaluate existing conditions such as weather, exposure problems, etc. in determining e most effective method in dispersing the gas.

30
Q

What is the primary consideration at a leak in the pipeline

A

Evacuation of the area involved. Avenues of escape must remain open for civilians and FD personnel.

31
Q

In the event the IC decides to have the manually operated valve closed, designated personnel will perform this function. This valve must only be reopened by

A

Personnel of Con Edison or the Iroquois Pipeline Company in consultation with and when authorized by the FDNY IC

32
Q

Who does the IC designate to patrol the pipeline to locate the leak

A

It’s will be performed by a Squad Company or SOC Support Ladder Company as designated by the IC. Theses designated units shall use their metering capabilities during their patrol duties.

33
Q

If Rescue, Squad or SOC Support Ladder Companies are not available to patrol the pipeline for the leak then the IC shall

A

Order available units to perform these duties.

34
Q

In the event of a Sub Sea Leak a

A

Marine company will be assigned to patrol the sub sea pipeline

35
Q

When the leak is located the IC will establish an

A

Operations Post at a location consistent with existing conditions

36
Q

The following actions shall be ordered by the FDNY IC

A
  • Upon confirmation of a leak transmit a 2nd alarm for the street box NEAREST the leak location
  • Verify BOX 8600 for the Iroquois Pipeline has been transmitted
  • Utilize employees of Con Ed/Iroquois with their specialized knowledge, skills and equipment to advise and assist in controlling the situation
  • Evacuate buildings and areas involved
  • Eliminate and extinguish sources of ignition
  • Divert pedestrian and vehicular traffic
  • Coordinate department activities with other city agencies and public utilities
37
Q

Operations adjacent to railroad tracks

A
  • Tracks owned by NYC
  • CSX Corporation operates the trains
  • Trains are diesel powered
  • Train speed limit is 10 MPH
  • IC must immediately contact dispatcher
  • Flag persons AT LEAST 1000 feet on each side of incident
  • Flag persons must have HT & Flashlights
38
Q

Pipeline venting

A
  • Certain valves have venting capabilities
  • We can vent certain valves in order to reduce the volume of gas being released at a leak site
  • The FDNY IC will coordinate this venting with the Iroquois Gas Control Center
  • All venting will normally occur at valve E-11-1 in Northport LI
  • Venting at other valves will only be done after careful consideration of existing conditions & with approval of the FDNY IC
39
Q

There will be 2 types of drills conducted during the year

A

Familiarization Drills
October/November

Borough Drills
April/May
MUD may be utilized for FAM and Borough Drills

40
Q

During drills on the Iroquois Pipeline can we operate the valves

A

Under No Circumstances shall valves be operated without prior consultation with Iroquois/Con Ed personnel during drills. Partial closure of the valves may be permitted after consultation with pipeline personnel. Under NO circumstances will FULL closure of these valves be permitted during drills

41
Q

Familiarization drills

A
  • Annually in October/November
  • 1st thru 3rd alarm units visit the valve sites to become familiar with pipeline and valve locations, examine the valves and test fit the wrenches
42
Q

Borough Drills

A
  • Annually in May/April
  • The FDNY pipeline coordinator, an assigned Division 6 Deputy Chief, shall conduct this drill.
  • It’s drill is conducted to closely simulate a fire and/or emergency
  • FDNY Pipeline coordinator shall notify the Bureau of OPS
  • All transmission during drill preceded by “This is a drill transmission”
  • 10-20 response during the drill
43
Q

The Iroquois pipeline carries natural gas that is non toxic, light than air, which can be an asphyxiant, and is combustible from

A

5%-15%

44
Q

True of False

Except in the event of an IMMEDIATE threat to life or property, no valves of the Iroquois pipeline should be opened or closed without the approval of the FDNY IC in consultation with Con ED Iroquois personnel

A

True

45
Q

Upon confirmation of a leak in the Iroquois pipe line

A

Transmit a 2nd alarm for the street box nearest the location

auc (54 decks)

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