questions and answers.docx

1. Can we get copy of one-line for each substation?

--Not available for release.

2. When will the transformer outages be available - any during the week day?

-- Sub D transformers (one at a time) will be available during the week.

-- Sub B transformer B14 will require a power outage.

3. Who will do the transformer cable and/or bus disconnect/reconnect for the power factor tests? What are the transformer connections?

-- Contractor to perform disconnections. They can be made at flex fittings from the bus to the transformer bushings. Sub B transformer B14 has cable connections to the transformer secondary bushing.

4. Is it correct to assume all CB's will require a min of 2 hours after test before the next breaker can be taken out of service?

-- This is generally correct. Upon review, for the Sub D 15kV breakers, it may be assumed that average switching time is 1 hour, due to some efficiencies in switching.

5. Can transformers be taken out of service without a "power outage"?

-- Sub D transformers can be taken out of service without a "power outage." Sub B transformer B14 will require a power outage.

6. Will infrareds be done before or after the maintenance work?

-- Infrared inspections may be done either before or after maintenance work.

7. Assume work will start 90 days after award. Are there any restrictions in the time to complete the work?

-- Performance period is 90 days. Work must be completed within 90 days of award.