Meteorological Monitoring Supporting Maintenance Activities

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Meteorological Monitoring Supporting Maintenance
Activities

• Robert F. Yewdall
• PSEG Nuclear LLC
• NUMUG Oct 2003
• Chattanooga, TN

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Background

• Maintenance of meteorological instrument and
  data acquisition/ display systems generally
  receive adequate attentions. This portion of the
  monitoring systems is implemented by approved/
  controlled processes and procedures. In
  addition, inspections and audits performed by
  regulatory oversight organizations and internal
  audits (QA and self-assessment) assure
  satisfactory instrument performance. However,
  supporting maintenance activities with respect to
  structures (towers, instrument building and site
  areas) may not receive the same level of
  attention as the meteorological instruments

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Safety Issues

• Lack of adequate maintenance may lead not only
  to degraded meteorological system performance but
  also to unsafe conditions. Increasingly, may
  meteorological towers have become dual function
  structures supporting radios, microwave, cellular
  telephone equipment. This leads to additional
  burden on maintenance support organizations.

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Other Programs Systems

• Organizational Responsibilities
• Intra-department cooperation
• Planning Scheduling
• Budgeting For PM CM

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Ownership

• Maintaining items such as HVAC, cathodic
  protection, lightning protection, UPS systems,
  security fencing, guy wire and anchors
  inspections, power and instrument wiring and
  conduit inspections, vegetation control, FAA
  warning lights and structural reviews of the
  tower are extremely important. In many cases
  there are no owners of these activities or they
  have become orphaned due to organizational
  changes or program cutbacks. Necessary resources
  attention and budgeting may be lacking in
  organizations and directly contribute to
  inadequate maintenance.
•  

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Checking What ?

• Surveillance Checks
• Operability Checks
• Functional Checks
• Safety Hazard Checks

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PM CM Corrective Action

• Preventative Maintenance Activities
• Corrective Maintenance
• Corrective Action
• Problem Identification
• Cause (Apparent Cause, Root Cause, etc.)
• Resolution
• Documentation

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Questionnaire

• Meteorological Monitoring System Maintenance
  Questionnaire Non-Instrument
•  
• I. How often are the following non-instrument
  maintenance activities performed?
• Guy wire tension checks (if not free standing)
  _____________________________________
• Inspections of guy wire anchors hardware
  ______________________________________
• Tower structural reviews including climbing
  apparatus ____________________________
• Instrument and electrical conduit/ wiring
  _________________________________________
• Tower junction boxes (including heaters, seals
  etc.)_________________________________
• Tower warning lighting (beacon, strobe etc.)
  ______________________________________
• Tower painting ___________________________________
  __________________________
• Grounding system (including cathode protection)
  __________________________________
• Lightning protection______________________________
  ____________________________
• Instrument building PMs (i.e., painting,
  penetration seals, etc.,) _______________________
• Backup power (batteries, generators)
  ____________________________________________
• Security fencing _________________________________
  ___________________________
• HVAC _____________________________________________
  _______________________

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Questionnaire cont.

• II. Is the same organization that is responsible
  for instruments (calibrations, maintenance
  repair, surveillance data collection) the
  department responsible for these maintenance
  activities?
•  
• If no, what organizational department is
  responsible? (i.e., maintenance, yard
  departments, contractors)?
• If yes, which activities?
• Are material resources (paint, new guy wires,
  tower/shelter hardware etc.) budgeted as IC
  expenses
•  
• III. What process or protocols do you have in
  place (or utilize) to ensure that physical
  problems associated with meteorological related
  structures, and/or grounds are corrected
  expeditiously?

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Recent Problem

• NUMUG Listserver Question Sept. 2, 2003
• We are bringing in a tower vendor tomorrow to
  inspect our guy wire anchors and our tower.If the
  guy wires are showing any sign of degradation,
  the vendor will not climb the tower.  
• I was wondering if anyone has had experience
  with finding degraded conditions?
• What affect did it have on the operability of
  the tower?
• Were plant personnel allowed to perform
  surveillances or instrument calibrations prior to
  repairing the condition?