QUESTIONS_AND_ANSWERS.pdf

QUESTIONS AND ANSWERS

FA5685-14-R-0014, Install Infrastructure for FOC TO ATCALS Facilities

Q1. Project and Specs do not give any information regarding the wavelength of fiber optic cable, being armored type, gel-free or not. Specification note says only single mode fiber optic cable. Could you please provide some more clarification and information for the Fiber Optic Cable?

A1. a. Wavelength of fiber optic cable: 8.3 Micron (assuming the size is asked instead of the wavelength as wavelength is dictated by equipment)

b. Armored type: No, but a tracer wire installation is required as indicated in the SOO in areas where fiber is installed in ducts alone (where no copper cable is already installed).

c. Gel-free or not: Gel filleted cable is required for moisture protection.

Q2. Please clarify that while installing new fiber optical cables through the existing PVC duct line, is there a spare 1" inner duct in the existing pvc duct? If there is not, is it required to install a new 1" inner duct?

A2. KTR shall install 1” inner duct in existing PVC for new fiber optic cables.

Q3. Instead of conduit spacer indicated on drawing E10, can we use E type stone?

A3. E type stone can be used.

Q4. Please refer to drawing E8. In the new communication manholes shall we install metal cable supports with branches or non-metal cable supports?

A4. Install metal supports for communication manholes.

Q5. Is it required to install metal supports and brunches in the existing comm. manholes?

A5. Not required.

Q6. Please determine the size and type of FODP and FOC box which to be installed on the back board at Control Tower B526 5th floor ETVS room.

A6. 12 strand SM wall mounted FODP. Ref. Sketch-3, Fiber Optic Cable Installation Layout in Attachment1 of Specs Section 01 11 00. 00 40 “Summary of Work”: The sketch shows a 12 strand FOC going from Comm Rm B128 to B526 5th floor.

Also, Para 3.4.9. in Attachment1 of Specs Section 01 11 00. 00 40 “Summary of Work”:

RAPCON-B526 Communication Room (Room B128): “… Install a new 12 port FODP right below the 12 port FODP and terminate the new 12 strand cable going to Control Tower, B526, 5th floor, ETVS room.”

Q7. Nowhere in the drawings at shows schedule 80 PE pipes but only indicated in AF FORM 1106, please state where this pipe will be used?

A7. PVC pipes to be used on duct lines shall be schedule 40. Schedule 80 HDPE pipes shall be used for horizontal boring locations.