Term1PSSPSPR

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juliav
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217235
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Term1PSSPSPR
Updated:
2013-05-07 12:17:06
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PSSP
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Term 1 PSSP SPR
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  1. Define Isolated
    All sources of hazardous infeed have been disconnected by a opening a switch or making a bus or line cut and securing with a tag and lock
  2. Who is the Person In Charge? Define this term.
    The one person with operating authority and operating responsibility for an assigned portion of the power system.
  3. Why is it important to create an equipotential zone?
    Eliminate step and touch potential in case the conductor/equipment were to accidentally become energized.
  4. Define Operating Authority
    The right to exercise control over an assigned portion of the power system. To establish the conditions for and to issue LLP's, SPG's, and ANRP's.
  5. Define Operating Responsibility
    The right to exercise control over an assigned portion of the power system.
  6. What are ANRP's?
    An assurance from the PIC that the automatic reclose on the circuit has been set to OFF. This ensures that the line will not re-energize if it's tripped from its own protection.

    For work near energized conductors. Category 4 tree trimmers.
  7. What is PSSP?
    The constraints applied to the power system to provide worker protection from power system hazards during prescribed work.
  8. Define Unqualified
    Does not meet the requirements for the qualified category.
  9. Define Qualified - Specially Trained
    A non-electrical worker that have passed an approved LOA course

    Certified Utility Arborists
  10. Why apply Worker Protection Grounding/Bonding?
    Create an equipotential zone

    • Protect against energization by
    • Induction
    • Lightning
    • accidental energization
  11. What authorization do PSSP category 6 workers have?
    PIC duties

    To recieve operating authority

    issue SPG's, LLP's, and ANRP's.
  12. What authorization do PSSP Category 5 workers have?
    Issue Protection Extensions to Category 3 workers.

    Recieve LLP's and SPG's.


    Isolate level V equipment and take Self-Protection.
  13. What authorization do PSSP Category 4 workers have?
    Take ANRP's for tree trimming

    Certified Utility Arborists.
  14. What authorization do PSSP Category 3 workers have?
    Work on the power system that does not require an SPG except under a Protection Extension.
  15. What authorization do PSSP Category 2 workers have?
    Access the power system.
  16. How do devices need to be identified?
    Unique numeric or alphanumeric identifer
  17. Who can work in Column 4 LOA?
    Unqualified workers and their equipment
  18. Who can work in Column 3 LOA?
    qualified specially trained

    Qualified workers with uninsulated equipment

    Unqualified workers when continuously supervised by a qualified worker.
  19. What are the Limits of Approach?
    The distances that shall be maintained between workers (including their tools) and exposed energized electrical conductors and equipment by voltage level.
  20. Who can work in Column 1 LOA?
    Absolute limit of approach for qualified workers and their insulated equipment.

    More than 2 workers, short duration, with a detailed plan.
  21. Who can work in Column 2 LOA?
    Normal limit for qualified workers and their insulated equipment.
  22. Define Qualified
    Accepted as satisfactory in education and training and in rules and practices.
  23. Define Guarantee of No Reclose
    A stated and duly logged guarantee between PIC's in different operating authorities that a recloser is turned off and will remain off.
  24. Define Energized
    source or potential source of electrical engergy present
  25. Define Authorized
    Having been approved for access or work on the power system.
  26. Differentiate between level I-IV and level V equipment
    level I-IV: more than one source of hazardous infeed and appears on a one-line diagram

    level V: one source of hazardous infeed and doesn't appear on a one-line diagram
  27. With the numbering structure #L-#X, identify the group associated with #,L.
    • #
    • 1- Policy Orders
    • 2- Technical Orders
    • 3- Station Orders
    • 4- Energy Sources Orders
    • 5- Transmission and Distribution Circuit Orders
    • 6- Emergency Orders
    • 7- Composite Network Orders

    • #
    • T- Transmission
    • D- Distribution
    • G- Generation
    • J- Joint
  28. What is a Switching Order? When must a switching order be documented in a switching order form?
    An order describing switching steps in proper sequence given by the PIC.

    Documented when there is 3 or more switching steps.
  29. What is a tailboard and when must one be held?
    A discussion which covers the scope of the work as well as the hazards.

    Must be held before and after work and when the scope of the work changes.
  30. What is the effect of open circuiting a CT secondary?
    Dangerously high voltages accross the CT secondary.
  31. What is the typical range of secondary output from a PT?
    0-120V
  32. What is the typical range of secondary ouput from a CT?
    0-5A
  33. What are current and potential transformers used for in power systems?
    Metering and protection
  34. What type of drawings can be used for operating (switching, etc) the power system?
    • Primary maps
    • feeder cable drawings
    • UDD's
    • DOD's
    • operating one-line diagrams
    • electronic representation
  35. What is the SPR's?
    The rules that govern work done by and for BC Hydro
  36. Define GOI
    A written and duly logged guarantee between PIC's in different operating authorities that a specific conductor/equipment is isolated and will remain so until the GOI is returned.
  37. What are the 3 types of SPG's?
    • Clearance
    • Test and Work
    • Self Protection
  38. Define Safety Protection Guarantee
    A stated assurance that a piece of equipment/conductor is isolated and will remain so.
  39. What is an LLP?
    For work on energized conductors by category 5 workers.

    An assurance from the PIC that the automatic reclose on the circuit has been set to OFF. This ensures that the line will not re-energize if it's tripped from its own protection.

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