Plant Modifications and Tag Audits

Question 1

What are Vital to Operations(VTO) Drawings/Documents?

Answer 1

Vital to Operations(VTO) drawings/documents are those deemed critical to support plant operations, maintenance, and testing.

Question 2

What are the VTO Drawings/Documents listed in OMP 2-10?

Answer 2

1. Mechanical Flow Diagrams
2. Electrical One-Line/Three-Line Drawings
3. Electrical One-Line list for 600V Breakers
4. Electrical Low Voltage Breaker List

Question 3

Where are the pending engineering change documents and drawings located in the Control Room?

Answer 3

Located at column CC-56 in the Control Room file cabinet

Question 4

What is the purpose of a Safety Tag Audit?

Answer 4

A safety tag audit is a physical verification that the tags for clearances in effect greater than 30 days are in place and undamaged, and that components are in the position listed on the Tag List.

Question 5

What is the frequency of Safety Tag Audits?

Answer 5

1. Monthly
2. Quarterly
3. Yearly

Question 6

What is required if there are discrepancies found during a Safety Tag Audit?

Answer 6

1. If a large number of discrepancies are found, the extent of the audit will be increased to provide assurance that remaining clearances are correct.
2. Damaged, illegible, or missing tags shall be reprinted and replaced, then documented on the details tab.

Question 7

What is the Test Method for verifying compliance with Plant Status Control?

Answer 7

The Test Method for verifying compliance with plant status control is to perform an audit of the Plant Status Control and Test Tags.

Question 8

What is the frequency of Plant Status Control Audits?

Answer 8

1. Monthly - checks any tags in effect greater than 30 days
2. Quarterly - checks any tags in effect greater than 30 days and directs completion of a Quarterly Audit that is reviewed by the Shift Manager.
3. Annually(4th Quarter) - Adds checks for components out of normal position greater than 1 year and determines if previous evaluation is valid.

Question 9

What is required if there are discrepancies found during the Plant Status Control Audits?

Answer 9

1. Replace any Plant Status Control Tags that are found missing or damaged.
2. If a component is found incorrectly positioned the Shift Manager shall be notified and proper paperwork completed prior to any repositioning.

Question 10

When are Electrical Circuit Isolation Tags used?

Answer 10

1. Electrical Isolation Tags are NOT utilized for personnel safety.
2. Electrical Isolation Tags are used for isolations left unattended by the implementer.

Question 11

What are some examples of components that would have an Electrical Isolation Tag?

Answer 11

1. Lifted Leads
2. Open Sliding Links
3. Removed Fuses or Plugs
4. Installed Temporary Jumpers
5. Open Knife Switches

Question 12

What color Electrical Isolation Tag is used by Operations and Maintenance?

Answer 12

1. Operations - White Tags

2. Maintenance - Blue Tags

Question 13

Where are Electrical Isolation Tags used, and where are they not allowed?

Answer 13

1. Electrical Isolation Tags are not used in the Containment.
2. Electrical Isolation Tags are used in all other locations, including the Annulus.

Question 14

What is the definition of Operational Control?

Answer 14

Having the authority and responsibility to position/reposition and tag site equipment or devices.

Question 15

Where is Operational Responsibility designated for specific components?

Answer 15

1. The Equipment Data Base

2. Attachment 1 of SD 3.1.36

Question 16

Who determines the boundaries for the Operational Control of systems?

Answer 16

Boundaries are established and agreed to by OPS Group and the Owner Control Group(OCG).