Contractor_Questions_-_CEFOP_Caucasia.pdf

Contractor Questions – Solicitation No. WHARC-15-R-0015 – CEFOP Caucasia

Contractor Questions For

Solicitation No. SWHARC-15-R-0015 Fusion and Operations Center (CEFOP) Upgrade – Caucasia, Colombia

Following is a list of the questions that were submitted by prospective offerors for the above solicitation. Each question is followed by the Government’s response.

ARCHITECTURAL:

Question #A1: Please, clarify which are the areas and the types of floor finishes to be installed.

Drawing A-101 calls for vinyl tiles, at the time that Official Bidding Chart calls for Ceramic Tie (Item 09 30 00).

Answer: Vinyl tiles should be used as shown in drawings and specifications.

Question #A2: Drawing A-102 shows doors and Windows to be installed in the new gypsum walls to be constructed. There are details of the windows, neither of the doors. Specification section 08 71 00, paragraph 3.5 shows the hardware sets (a thru 4), but there is not a door/window schedule that indicates where these sets are to be installed. Please, provide details of doors and Windows.

Answer: Please refer to drawing A-104 for windows and doors details and specification sections 08 11 13, 08 51 13, 08 71 00, 08 81 00 and 08 91 00. Note that Hardware Set#4 should be used for the doors but electric strikes should be installed as per Technical Security requirements.

Question #A3: Item 09 51 00 of Official Bidding Schedule calls for Acoustical Ceiling. Please, clarify the area where this ceiling is to be installed.

Answer: This is section is provided so that acoustical ceiling tile that is damaged during the works are replaced following the specification requirements.

Question #A4: Drawing A-102: Room 108 do not show detail for drywall/partitions. Could you describe how this area is required?

Answer: Provide a 2.26m drywall partition followed by a 0.95m window and a 0.90 laminated glass Door separated by a 0.05m frame that complies with the details in drawing A-102, A-103.

Question #A5: Drawing A102/A103: Glass partitions with metal frames are 2.20 meters height.

Drywall is 3 meters height. Then, drywall will be used over the partitions?

Answer: Correct Drywall shall be installed to continue the wall over doors and windows.

CIVIL:

Question #C1: Please provide name of the supplier and installer of the existing PTAR to be enlarged.

Answer: This is the contact information for the contractor that worked on the existing

PTAR:

William Martin 320-842-8746.

MECHANICAL:

Question #M1: Drawing M101: Any activity related with bathrooms should be included in the proposal? Exhaust fans should be included in the proposal?

Answer: This contract does not include exhaust fans for the bathrooms.

Question #M2: Drawing M101: IAW drainage isometric view, is required to include it in the proposal?

Answer: This contract does not include HVAC drainage.

ELECTRICAL:

Question #E1: Drawing E-501 shows that a New Overhead Primary shall be constructed up to the Light Pole shown in drawing E-101. Please, provide the length of this New Overhead Primary Line and clarify in which of the items of the Official Bidding Chart its cost shall be included.

Answer: There is an existing overhead line that comes up to the building, For the New overhead Primary an approx. length of 5m and 1 additional pole, provide pricing of this portion of works under section 33 70 02.00 10. (Measurements are approximate and it is up to the contractor to field verify them)

Question #E2: Please, clarify the scope of work in the following features: Electrical, Communications, A/V and Electronic Security. Specifically, we would like to know the length of the new overhead primary, the quantity and the type of poles to be installed, shall exterior lamps be installed in the poles to install, the characteristics of the pad mount transformer to provide/install, the characteristics of the electric meter, of the generator, of the electric panel boards, of the UPS, of the interior lamps, of the electric devices (inlets, switches, etc.), of the CCTV, of the A/V system, of the fire detection and alarm system, of the cables trays, of the electrical piping, etc. As this project is an upgrade, it would be very helpful for quoting purposes to clearly establish which of the above mentioned items exist on the project site, and which are the ones to be provided/installed.

Answer: For information on new overhead line refer to question #E1.

No additional exterior lighting on poles is required.

Pad mounted transformer, electric meter as per local electric company (EPM) specifications and requirements new to be provided.

Generator, UPS, CCTV and A/V system are shown in the drawings and specifications these are new to be provided by the contractor under this solicitation.

Fire Detection and Alarm System is existing and only is shown for information purposes as the technical security system should interface with it.

Cable Trays are existing as shown in the drawings.

Conduit and wiring is required for the receptacles for regulated power and normal power as well as data faceplates located on the workstations, new to be provided.

Lighting Fixtures, lighting Control devices and Panel Boards are existing.

Question #E3: Does the grounding net already exist at the project site or it is to be included in this upgrade quotation? In case, it is to be supplied/installed in the upgrade works we are to quote, it would be necessary to demolish part of the concrete slab for installing the grounding cable section that shall run inside the building. Please, clarify.

Answer: The grounding grid is existing.

Question #E4: Please, clarify which are the items to be included in each one of the following Official Bidding Schedule items:

• 26 11 16 Secondary Unit Substations

• 26 20 00 Interior Distribution System

• 27 10 00 Building Telecommunication cabling system

• 27 41 16 Integrated Audio – Video Systems and Equipment

• 28 20 01.00 10 Closed circuit television systems

• 33 71 02 Underground Electrical and Telecommunication Distribution.

Answer: Please refer to each specification section for details, included as per the following:

• 26 11 16 Secondary Unit Substations (All items new to be provided by contractor)

• 26 20 00 Interior Distribution System (All additional items new to be provided by contractor)

• 27 10 00 Building Telecommunication cabling system (All items to be provided by contractor) •27 41 16 Integrated Audio – Video Systems and Equipment (All items to be provided by contractor) •28 20 01.00 10 Closed circuit television systems (All items to be provided by contractor) •33 71 02 Underground Electrical and Telecommunication Distribution. (Refer to E1)

Question #E5: Please confirm paperwork and cost for installation of electric switches (seccionadores). It must be MT (médium tensión) or LT (low tension).

Answer: Transformer protection in primary and secondary shall be a 6,3Amp 15KV Dual Fused Cutout for Primary and a 500A 3P Circuit Breaker for Secondary as per drawing E-501, it is up to the contractor to determine the local power company requirements, payment for permits for main electrical connection shall be by the CNP.

Question #E6: Please indicate in drawings the sections to be cut in floor and walls for pipe installation for electrical outlets, V&D outlets, etc.

Answer: Please refer to drawing E-203, T-102 conduit runs marked with Keynote 1.

Question #E7: For the UPS 40 KVA what´s the additional time of backup provided for the battery bank.

Answer: Please Refer to Section 23 32 33.00 10 paragraph 2.4.3 (15 minutes at 125% load at 77 degrees F).

Question #E8: To avoid CMU demolitions, is possible to use exterior square conduit (channel type) horizontal and vertical?

Answer: Horizontal raceway is acceptable, vertical drops are to be embedded.

Question #E9: To avoid CMU demolitions, is possible to use exterior square conduit (channel type)

Question #E10: Can the test of the power plant be done at the warehouse of manufacturer or power plant representative?

Answer: Factory Testing can be carried out at the manufacturer’s or vendors facilities

Question #E11: Should the test of the power plant be done with a load bank? Must the load bank be certified? Or the voltage, current, etc. be measured independently as the load bank?

Answer: Factory testing must include the load bank testing; the load bank and any additional measuring apparatus shall have calibration certificates dated no more than 1 year from the date of the test.

Question #E12: The final test of the power plant, ítem 3,7,b, section 26.23.14.00, asks for a 100% load test. This test is made with the 100% of the load of the site? Or 100% of the load of the power plant?

Answer: The site testing is performed with the site load.

Question #E13: Is the ATS already installed?

Answer: The ATS is to be provided by the contractor as part of the scope of this contract. It is up to the contractor to verify existing site conditions.

Question #E14: Which electric panel boards are installed?

Answer: All panel boards are existing, however new circuits shall be installed and/or relocated as per the drawings. It is up to the contractor to verify existing site conditions.

Question #E15: Of the Fire Alarm System what is installed?

Answer: The fire alarm system is existing however the contractor shall interface the new CCTV/Technical security system with it. It is up to the contractor to verify existing site conditions.

Question #E16: The cables from the electric meter board to the ATS are already installed?

Answer: Wiring from measure to ATS is existing. It is up to the contractor to verify existing site conditions.

Question #E17: The cables from the power plant to the ATS are installed?

Answer: Wiring from Genset to ATS is existing. It is up to the contractor to verify existing site conditions.

Question #E18: Are the cables from the main panel board to the ATS already installed?

Answer: Wiring from ATS to MDP is existing. It is up to the contractor to verify existing site conditions.

Question #E19: Are the cable tray installed?

Answer: Cable Tray is Existing it is up to the contractor to determine if additional cable tray is necessary and shall be included at no extra cost to the government. It is up to the contractor to verify existing site conditions.

Question #E20: The voice Data and electric trays shall be installed wall mounted and under the existing floor slab?

Answer: The contractor shall interface with the furniture contractor and shall include materials and installation of data, voice, normal and regulated power receptacles on the furniture provided by a separate furniture contractor.

Question #E21: What has to be done with the water treatment plant?

Answer: Contractor shall increase the capacity of the existing water treatment plant to accommodate 500 people. It is up to the contractor to verify existing site conditions.

Question #E22: Are the lamps, outlets, breakers installed?

Answer: Lighting is existing; contractor shall include additional wiring, conduit and receptacles for normal and regulated power. It is up to the contractor to verify existing site conditions.

Question #E23: Is the ground bus installed?

Answer: Grounding bar is existing in Rack room but not in A/V room. It is up to the

Question #E24: Is it possible to have the specifications of the floor outlets?

Answer: The contract does not include floor mounted receptacles. It is up to the

COMMUNICATIONS:

Question #T1: Specification 2.2.19 there will be a UPS for central station. UPS capacity is 15 KVA?

Battery backup must be 6 hours full charge? Please confirm.

Answer: Assuming that the cited paragraph relates to section 28 20 01.00 10 please note that the 6 hours full charge is for the operation of the equipment in the CCTV rack.

Question #T2: Please confirm number of screens of the wall screen system

Answer: Please refer to drawing T-201and T-203, the main video wall has 6 (3X2) screens and there are 2 additional monitor screens.

Question #T3: To avoid CMU demolitions, is possible to use exterior square conduit (channel type)