QAs 2-13-24.docx

JPEC Services LLC

TECL 28193

1) Are there any concrete areas in the facility that cannot be core drilled to route new conduit

NO

2) Are there any concrete areas in the facility that cannot be drilled into to place concrete anchors less than ½” in size. NO

3) What are scanning requirements to core drill any concrete areas in facility to avoid structural steel. At this point NONE

4) PWS lists 300 Gallon Tank & 660 Gallon tank. The tank size is determined from the desired run time at 100% load. Approximately 524 Gallons of fuel will provide the 300KW generator with 24 hour run time at 100% load. Will a 524 Gallon tank be acceptable Yes

5) Will the contractor be responsible for initially filling the generator will fuel. Yes, for testing purposes

6) Are there any weight limitations of the platform in front of transformers and new generator location. NO restrictions, the platform can support a big crane.

7) Can the facility overhead crane or exterior platform trolley crane be utilized by contractor or government personnel to aide in setting generator in the event of weight limitations on platform preventing mobile crane usage. If the Contractor needed for any reason Powe Plant provide the Operator.

8) Is annunciator desired to monitor generator. If the Generators has an Annunciator will be enough nor modifications are required on current Annunciator system

9) If annunciator is desired would it be located in the control room. Not Required

10) Will generator remote (start/stop) wires terminate to PLC inside control room or Switchgear>Switchgear

11) What is the process to schedule any necessary power outages to land generator power feeders or accessory circuits. Power Plant personnel will be responsible to schedule any outages to install or test the Generator

12) PWS calls for arc flash study analysis. Generators are particularly difficult because they have very low fault current capability. With standard 10X Inst trip breakers, they almost never make it into the INST trip region, and thus you have high Cal values because of the long time component. Programmable breakers can over come this because you can adjust the INST range. If being on generator is just a 'once in while' event, like a power outage we typically recommend to arc flash label "Live Work Prohibited while supplied from generator". Would labeling the generator & switchgear with “Live Work Prohibited while supplied from generator” That works for this project and equipment.

13) Will the main power tie into the switchgear need to be performed with switchgear energized.

Power Plant personnel will be responsible to schedule any outages to install or test the Generator

14) Can restrooms in facility be used by contractor or will onsite portable restroom be required Portable Restroom will be required for this project.

15) Can the government provide any As Built / manufacturer documents detailing main switchgear installation. Yes, Falcon Power Plant provide the As built for the switchgear project