Transformer Questions and Answers Updated 13July2020.docx

Questions and Answers for FA2517-20-Q-0098

What is the current condition of the transformer? Unit is operational.

Wondering if there are more detailed specs on the transformer? See picture of data plate supplied.

Are there any access issues to get to it? No access issues. Transformer located on side of facility with piping above.

From the description it sounds like we will be removing the transformer and disposing. Are there any stipulations that go with that? Follow established guidelines, no stipulations.

Are the existing elbows and cables in serviceable condition and if not is there excess cable to terminate new elbows? They are serviceable, excess cable unknown.

Are there arrester elbows? Yes, feed through transformer.

What size cable? 5KB.

What size bushings? 200A.

Is there a certain manufacturer of transformer that is required? (We like to use Eirmco and Maddox) Nothing specific, prefer copper windings.

Is there an underground basement below the transformer and what dimensions? Yes, 8’X8’.

Are we expected to sectionalize to perform the outage or will that be done by others Contractor expected to isolate in vault located below transformer. (confined space entry)

Does the existing unit contain PCB's and if so, what is the contamination level? No.

Is the existing unit operational? Yes.

Why is it being replaced? Would like it changed on our terms as a potential failure unexpectedly. (39 years old) Aluminum windings.

Please provide a picture of the data plate, located within the low voltage section. See attached photo of plate.

What brand/type of transformer is currently in place? Please see attached photos.

Do you have any drawings depicting the location of the transformer to be replaced? There are no drawings for this, but there are no access issues to the transformer.

· Do you know how far the electrical room is from the transformer in case we need to pull new wire? The 4160 cable from transformer elbow runs approximately 20’ to elbows located in pit. Potentially only thing needed is 60’ cable and elbows for primary and 60’ cable for secondary.

· Does this need to meet “buy American standards”? Yes, in accordance with the Buy American Act.

· Do you have a picture of the primary side of the transformer? See photo #4 attachment

· Upon review of the images posted on the 7th it was brought to our attention that due to the constraints of the pad and the surrounding areas this project will require a custom transformer. We know the question deadline has passed, but we would are hopping you can confirm the sizing of the pad and the transformer? Pad size is 62”X63”. The transformer is 48”(65 ½””including fins)X56”X75 ½”.