The flashcards below were created by user
on FreezingBlue Flashcards.
What is the SPR?
The rules and instructions that govern all work done by or for BC Hydro and all access to it’s Power System.
What is the process for notifying employees of changes to the SPRs?
Safety Practice Committee shall use Bulletins and FYIs
What is a Tailboard? Explain the rules surrounding Tailboards?
When work on a job involves two or more workers at a site
- Documented discussion
- Held immediately before work begins each day or;
- During the course of work when there is a change in the job to ensure that all workers understand the hazards, barriers in place, risks and procedures associated with the job (OSH 122)
- Documented discussion after work has completed
Explain fully the rules in Limits of Approach (Rule 401), including what the limits of approach are.
- LOA are the distances that shall be maintained between workers (including their extension of reach cause by conductive tools, materials, equipment or unplanned movement) and exposed energized electrical conductors or equipment.
- Created to prevent the incident of an electrical shock by arching, step or touch potential
- Any worker intending to perform work on or in proximity to exposed electrical conductors and/or equipment must be trained and authorized by their manager to a specific column in the LOA table.
Explain the difference between qualified workers and unqualified workers.
- Qualified Worker
- Only experienced electrical utility trades or technical workers who have achieved and maintained their qualifications may be designated as a Qualified Electrical Workers.
- Unqualified Worker
- Workers that do not meet the qualified worker requirements are considered unqualified. These workers may still be authorized, but only to Column 4 LOA and if they hold PSSP Category 2 or WPP Category A authorization.
At all times when working alone on, or in proximity to, exposed
energized electrical conductors or equipment the Worker shall?
- Be appropriately trained in the work to be performed
- Be authorized to the appropriate category of PSSP or WPP
- Establish regular communications according to the Worker Check Procedure (OSH 801)
- Maintain appropriate LOA according to SPR table 401. Under no circumstances shall work be done alone at closer than the Normal Limits of Approach specified in column 2
Live Line permits are not mandatory for:
- Application or removal of hot taps
- Installation or removal of approved bolt-on stirrups to conductor #2 or larger, provided rule 414.3 is allowed
- Application or removal of stick mounted ammeters.
What are phasing tests and when should they be done?
When conductors or equipment are being connected where incorrect phasing could occur from replacing potheads jumpers or risers or UD switching, Phasing tests shall be used.
During work involving a Live Line Permit, the workers protections
Proper work practices and approved, test and well maintained live line tools.
Explain the 6 rules associated with Live Line permits.
- 1.Before electrical journeypersons begin live line work or hazardous tree trimming near energized line, they shall obtain a Live Line Permit from the PIC
- 2.Only qualified electrical workers shall be authorized to receive a Live Line Permit
- 3.Before issuing a Live Line Permit, the PIC shall make arrangement to prevent immediate re-energizing of the circuit or equipment (including any required Guarantees of No Reclose from other operating authorities), and shall retain Operating Authority over all reclosing devices (refer to 614.7 for reclose off an tagging requirements).
- 4.The PIC shall have a means of direct communications with the permit holder.
- 5.In the case of de-energization, the PIC shall contact the permit holder before the circuit or equipment is re-energized, unless the cirut or equipment has been de-energized by other than its own protection or the cause is verified by a qualified person.
- 6.When a Live Line Permit is in effect, the circuit involved shall not be paralleled without notifying the permit holder.
What are the duties of the Person In Charge per the SPRs?
- Shall become familiar with all operating condition and shall understand all detail necessary to competently operate the assigned portion of the Power System
- Prior to taking charge, the relieving PIC shall not take part in the operation of the assigned portion of the Power System except under instruction from the PIC still on duty.
When can an isolating device identified on an operating one-line
diagram be operated without the permission of the person with
In the case of an emergency to protect life or prevent injury
Whose responsibility is it to ensure the worker doing the switching is
qualified and authorized and understands the switching sequence.
The person with Operating Authority shall ensure the worker doing the switching is qualified and authorized and understands the switching sequence.
A disconnect switch shall not be used to
___________________________________ unless it is known that
the disconnect switch is adequate for the intended purpose.
Break load, magnetize or parallel current or pick up load
Explain the approved operation for opening a manual disconnect
switch that can be inched open.
- Gradually open the switch until the blades just part to determine whether arching is present
- If arching is unacceptable, quickly close the switch and advise the person who ordered the switching.
- If arching is acceptable, open the switch with a continuous swift motion if practicable. Visually confirm that all blades are fully opened
Explain the approved operation for opening a manual disconnect
switch that cannot be inched open.
Operate the switch using a continuous swift motion. Visually confirm that all blades are fully opened.
What is the purpose of applying Worker Protection
To protect persons working on isolated conductors or electrical equipment from the hazard of accidental energizing from any source
All high-voltage conductors and electrical equipment shall be treated
as energized unless one of the following conditions is in place,
- A Safety Protection Guarantee (SPG) is held, the worker has verified there is no system voltage, and Worker Protection Grounding/ Bonding has been applied
- The conductor or equipment has been isolated, a worker has verified the isolation, including checking for no system voltage, Worker Protection Grounding/ Bonding has been applied, and lockout has been established.
What are the three types of positive Safety Protection Guarantees?
To ensure that high-voltage conductors or electrical or mechanical equipment are isolated and will remain isolated:
- Clearance (Including Protection Extension)
- Test and Work Permit
- Self Protection
How are Safety Protection Guarantees enforced
By ‘’Do Not Operate” tags
What are the workers responsibilities after receiving a Safety
Workers shall verify isolation (Rule 511) and apply Worker Protection Grounding/Bonding and/or blocking before they commence work on high voltage conductors
What is a Clearance? Who can receive a Clearance?
Is a stated assurance that one or both of the following is true:
- A specified conductor or electrical equipment is isolated, and it is safe to apply Worker Protection Grounding/ Bonding and got to work
- A specified piece of mechanical equipment is isolated, and it is safe to apply blocking and go to work
The protection provided by a clearance may be extended to another authorized worker through a Protection Extension
What are the responsibilities for a worker receiving a Clearance?
- After being notified that the required conductor or equipment is isolated and have been given the Clearance number, complete the Safety Protection Record form, marking it as a clearance and recording the number.
- Warn all workers under the Clearance to maintain limits of approach until appropriate Worker Protection Grounding/Bonding or blocking is in place.
What are the responsibilities for a Clearance holder issuing a
- Protection Extension from an existing Clearance may be issued only to a worker authorized to PSSP category 3 or higher.
- Ensure the existing Clearance is appropriate for the work to be done.
- On the Safety Protection Record form for the Clearance, under the heading “Protection extended to,” record the name of the worker receiving the Protection Extension, the time, and the date.
- Inform the worker receiving the Protection Extension of the hazards involved. If necessary, install barriers or take other means to ensure that the work to be undertaken does not create a hazard to life, property, or service. For a worker authorized to PSSP category 3 or 4, direct and personally observe the worker applying any Grounding/Blocking Protection tags they may require (refer to 611 and 612).
- Inform the worker who requested the Protection Extension that work may proceed.
- When work under a Protection Extension has been completed, ensure that the worker holding the Protection Extension has advised their crew to stay clear of the lines or equipment. For a worker authorized to PSSP category 3 or 4, direct the worker to remove any Grounding/Blocking Protection tags they have applied.
- On the Safety Protection Record form for the Clearance, have the worker returning the Protection Extension, sign and record the time and date of return.
Fully explain a Self Protection permit? How is a Self Protection
different than a Clearance?
- Self Protection is a Safety Protection Guarantee that a worker authorized to PSSP category 5 or 6 can apply on conductors or equipment for which a Clearance or Test and Work Permit is not required
- May be applied on high-voltage distribution lines where looped or multiple feeds do not exist from a single isolation point.
Explain Customer Isolation.
Customer Isolation is the procedure to be followed when electrical isolation is required from the power system. This procedure will ensure that workers authorized by BC Hydro have isolated the electrical supply to the customer, and will not reconnect the supply until requested to do so by the customer.
What is the SPR definition of Authorized?
Having been approved for specific access to or work on the power system or associated equipment by an authorized manager, identified in a local operating order, in accordance with PSSP or WPP.
What is the SPR definition of Energized?
‘Hazardous Energy’ Any electrical, mechanical, hydraulic, pneumatic, chemical, or thermal energy, or force such as gravity that could potentially harm workers.
What is the SPR definition of Guarantee of No Reclose?
A stated and duly logged guarantee between the PICs of different Operating Authorities that a specified conductor or equipment shall not be reclosed manually or automatically until the PIC who has received the guarantee authorizes reclosing.
What is the SPR definition of Isolated?
For electrical equipment, the normal sources of hazardous energy have been disconnected by opening and securing all associated switches or by making a line or bus cut.
What is the SPR definition of Operating Authority?
The right to control, as delegated by the hierarchical control arrangement, an assigned portion of the power system to: establish the conditions required for Safety Protection Guarantees, Live Line Permits and Assurance of No Reclose Permits; to issue such Guarantees and Permits; and to establish work protection.
What is the SPR definition of Operating Responsibility?
The responsibility for the operation and reliability of an assigned portion of the power system, as delegated by the hierarchical control arrangement
What is the SPR definition of a PIC?
The worker who has been assigned both Operating Responsibility and Operating Authority for portion of the power system.
What is the SPR definition of PSSP?
The constraints that must be applied to the power system (excluding the integrated generation stations) to provide worker protection from power system hazards during prescribed work. See also Work Protection Practices.
What is the SPR definition of Qualified?
Accepted as satisfactory in reference to experience, training, education, personal competency, physical ability, and familiarity with rules, procedures, equipment, and dangers involved in the work and/or operation
What is the SPR definition of a Safety Protection Guarantee?
An assurance that conductors, electrical equipment, or mechanical equipment on the Distribution and Transmission power system are isolated and will remain isolated.
General Safety Rules
Incidents & First Aid
PPE and Tools
Work Near, or On, Energized Conductors and Equipment
Isolation, Grounding, and Blocking General
- Isolation and Tag Out:
- Distribution & Transmission
- Isolation and Lock-Out:
- Generation Stations