SAQMMA17R0041_QAs.pdf

CNP Utilities and Site Work Questions and Answers SAQMMA-17-R-0041

Q&A #

Drawing/Spec.

Reference Subject Description Responses

1 General General The drawings/plans show two stages of construction, is this project quoting both stages or just the first stage? As explained during the Pre-Proposal Conference and Site Visit, the contractor shall refer to drawing Attachment 3A U-10 which includes and shows all required first stateged work. In addition, the Attachment 1 Specifications Utilities Caucasia inlcudes only the scope of the first phase

2 Is the 150 KVA transformer shown in single diagram (drawing E-2) and in drawing E-

1 for feeding the CEFOP building to be supplied and installed or is it existing onsite?.

We clarify that we are not speaking about the 150KVA pad mount transformer to be supplied and installed for the new substation.

There is one existing and one new 150 KVA transformer as shown in drawing E2. The location for both units is shown in

E1.

3 Single diagram shown on drawing E-2 shows a feeding line to the CEFOP. Is it existing or shall we include the costs for its construction?.

The CEFOP building has an existing feeder from the transformer to its main panel board.

4 Is the containers area general panel board shown in E-1 drawing existing or we shall include the costs for supplying and installing it?

The offeror shall refer to Attachment 1 Specifications Utilities Caucasia Division 26, section 26 24 16.00 40 Panelboards

(page 126) and Attachment 3D Electrical drawings for detail panel board information.

5 The duct banks from the containers area main panel to every and each of the containers are shown as existing in the drawing E-1. Shall we include the cost for installing cables between the containers area main distribution panel to every and each container or these cables exist on site?

The contractor shall include wiring from General Panel to containers using new cable wired through existing ducts as well as new wiring and new duct banks and junction boxes for the existing bathrooms.

6 Please clarify, What are the technical specifications of the geotextile found in plan 7 of urbanism

In accordance to the information in the Soil Studies in the Attachment 1 Specifications Utilities Caucasia Division 31 -

Earthwork, the reference for the Geotextile shall be NT 1800.

7 According to the plans of urbanism exist existing works. Within the scope of the works to be executed in the application SAQMMA17R0041 should these installations be dismantled?

The Contractor shall not dismantle or remove any existing facility unless it interferes with the utilities or facilities that are part of the scope of this project, in which case the contractor shall relocate in the most feasible manner possible.

8 In the plans indicate works among others such as the cafeteria, please clarify which are the works to execute within this request?

The Cafeteria is a projected building for which the contractor shall not perform any type of work related action. The

Contractor shall include as part of their proposal the Water supply and sewage connectivity of the Bathroom facilities, CEFOP Building and DIRAN Facilities to the projected utilities. And regarding the Electrical connectivity the contractor shall connect the Bathroom facilities and Manual Eradication containers to the projected utilities.

9 There are two parking areas in the plans. Are these works to be quoted within this request?

As shown on Attachment 3A Urban drawings U-10, the contractor shall only perform the backfilling in selected material for these parking areas.

10 On the subject of track, the structure provides for a geotextile. That specification is that geotextile?

whether it is tissue or no tissue and that reference, usually these geotextiles are used for separation of layers and that it does not mix the ground of the subrasante with layers granular. The most common is the NT 1600 but there is to confirm.

Refer to answer to Question 6.

11 Which is going to be the final provision of the material that came out from the excavations?...... if the project involves an area for waste, dumps or on the contrary the contractor seeks its botadero. This in order to establish the cost of the transport of the material of excavation.

The contractor shall refer to Attachment 1 Specifications Utilities Caucasia Division 31 – Earthwork. This is part of each company's proposal and the contractor shall guarantee that the borrow areas are approved areas.

12 In the sector of the multiple courts, specifies a fill but these courts shall be synthetic or its final finish is in particular?

The Multifunctional court is not part of the scope of this project. The Contractor shall verify the backfilling levels required in this project for this specific requirement.

13 In the Theme architectural heritage, the scope of the contractor is to place the furniture?

Furniture is not part of the Scope of the actual project.

CNP Utilities and Site Work Questions and Answers SAQMMA-17-R-0041

Q&A #

Drawing/Spec.

Reference Subject Description Responses

14 In the white work and/ or finishes, that type of tile will be used in flooring and wall for bathrooms, paintings, etc...

In the cost structure of the basic material and subbase, the contractor includes the cost of transport in the cost of materials or specified in an item by a part of hauling (km-m3)

Bathrooms are not part of the Scope of the actual project. but only water supply, sewage and electrical connectivity of the bathroom facilities shall are required.

This shall be a firm fix price contract, all the items included in the scope of the project shall include all the activities required to perform the work completely.

Could you gave the specifications of the septic wells.

No septic well is part of the scope of this project. The sewage system shall connect to an existing Sewage Treatment Plant of the CNP Base Area as shown in the Sewage drawings in the Attachment 3C – Sanitary drawings.

16 Medium voltage existing aerial network must be removed??? La red de media tensión que esta hacia el Cefop hay que quitarla y conectarla al nuevo seccionador de tres vías?

The Medium voltage line shall be intervened to disconnect the existing 150 KVA transformer and install a new 3 way disconnect switch as per drawing E2 and connect from there two 150 KVA transformers one existing and one new.

Is there a generator 15 KVA to be quoted in this project???

The scope of this project includes a new generator for the pumps 15KWA shown but must be sized as per final dimensions of pumps see notes on E2.

Fort the existing containers electrical raceway, are there electrical existing conduit pipes??? Only cable to be supplied and installed ??

Refer to answer to Question 5.

42 circuits panel board for the existing containers must be Weather proof???

All exterior mounted panel boards shall be weather proof. Offerors shall refer to the Attachment 1 Specifications Utilities

Caucasia Sub Division 26 24 16.00 40 (Page 127) NEMA 250. The standard covers Non-hazardous (unclassified) locations: enclosures for indoor locations, Types 1, 2, 5, 12 12K and 13l and enclosures for indoor and outdoor locations, Type 3, 3X, 3R, 3RX, 4S, 3SX, 4, 4X, 6, and 6P.

Pumps panel board must be weather proof??? Pipe must be installed from the panel board to the pumps?? Please provide length.

All exterior mounted panel boards shall be weather proof and refer to answer to Question #19, appropriate raceway shall be used to route wiring to panels, drawings are to scale