W50S7T20Q0016_Questions and Answers dated 14Jul20.pdf

Questions & Answers received prior to 11 July 2020 Project: 182AW Pressure Washer Solicitation # W50S7T20Q0016

1. QUESTION: During the site visit it was established that the electrical requirements may be up to 150 amps at 480 volt three phase for each unit. If this is true, where will this power come from? If it comes from the 480 volt MCC will there be enough space for these two units?

ANSWER: The existing breaker is a Cutler Hammer HFD3070. See the cut sheet that has been uploaded onto beta.sam.gov. New 125A circuit breaker should fit in existing tub space. Contractor to verify tub requirements prior to installation.

2. QUESTION: Does the Base wish to have these units plug into a receptacle or to be hard wired to a disconnect mounted on the wall?

ANSWER: Hard wired to a disconnect switch.

3. QUESTION: I thought of some questions once I was able witness the questions from others, especially your electrical engineer and the other interested party from CEIS. 1st, When we looked at this project from start 2 years ago, there didn’t appear to be an issue with having enough power from your panels to run (2) 125 amp 480V 3 PH circuits during the preliminary stage of development. Therefore, our electrician understand he was going to replace the (2) 60 Amps buckets up to 125 Amp and run new wiring/conduit power to the proposed intrinsically safe pressure washers. He was going to have a new bucket made which will take 5-6 weeks to get in. Listening to those two talk today, it made it sound that there is not enough power in those panels to feed (2) 125 amp 480V 3 PH circuits. Is this correct? Can your engineer do an actual load test to verify and let us know? If there is not enough power a plan needs to be developed.

Here is the question how my electrician posed the statement to me if mine is not clear. ”I have a concern that was brought up about the MCC at the IANG. I have heard that the service may not be sized big enough to handle the two new loads. This was mentioned to me from CIES that Austin, the engineer onsite, is concerned about it. I want to make sure that by removing one of the existing MCC buckets and replacing with a new bucket that is a split setup with (2) 125 amp breakers is still going to be fine to feed the new units.”

(ANJ, 2020)?

ANSWER: Power capacity is not a concern. The concern during the site visits was the size of the new breaker vs. the size of the old. The existing breaker is a Cutler Hammer

HFD3070.

4. QUESTION: Is there an issue with 60-65 days if everything above works out?

ANSWER: No.

5. QUESTION: Does the General Contractor (Me) need to be onsite everyday while my subs are there working? I am assuming not but posting the question as it will change my pricing if needed.

ANSWER: No. Since this is a product that includes an installation, the resulting contract will not require a site superintendent to be onsite.

6. QUESTION: Are we able to utilize your forklift and a scissor lift for a couple days for the pressure washer setup? We would need to move the washers into place and help mount reels up if no floor space appears to be available at the time of install. Our Electrician will bring their own from there their end of the install.

ANSWER: No. The Government will not be providing any equipment to include forklifts or scissor lifts. The contractor is required to provide all necessary equipment to install the product.

7. Our proposed pressure washers can come as just a skid to be permanent or casters to move around for cleaning. What is the preference?

ANSWER: Casters.