BC Class C Electrical FSR flashcards
BC Class C Electrical FSR · Build recall with a focused review session.
32 cards. Read the term and the definition here. The deck at the top of this page is optional.
- What is an FSR?
- A Field Safety Representative is the licensed person who holds legal responsibility for electrical work done under a permit and certifies it complies with the adopted code.
- Class C FSR voltage limit
- In British Columbia, Class C scope covers electrical equipment and conductors operating at not more than 750 volts, excluding work reserved for other FSR classes.
- Permit before work rule
- No electrical work may start until a permit is issued by the authority having jurisdiction, and the permit must remain available at the site.
- Declaration of completion
- The FSR signs a declaration that the installation complies with the code; making a false declaration is an offence under the provincial safety statute.
- Authority having jurisdiction
- The AHJ is the organization or official empowered to enforce the electrical code, issue permits, conduct inspections, and grant approvals in the jurisdiction.
- Contractor licence versus FSR
- An electrical contractor licence belongs to the business, while the FSR licence belongs to an individual; both are required to take out and hold permits.
- Supervision of apprentices
- The FSR must ensure apprentices work under the level of supervision set by regulation and that only qualified persons perform work requiring a certificate.
- Ohm's law
- Voltage equals current multiplied by resistance, expressed as V = I × R; rearranged, current equals voltage divided by resistance.
- Three-phase power formula
- For a balanced three-phase load, power equals the square root of three times line voltage times line current times power factor.
- Voltage drop limits
- A common code guideline keeps branch circuit voltage drop within three percent and combined feeder plus branch drop within five percent of nominal voltage.
- Conductor ampacity correction
- Table ampacity is multiplied by an ambient temperature correction factor and by a conductor-count adjustment factor when several current-carrying conductors share a raceway.
- Bonding versus grounding
- Bonding connects metal parts to keep them at equal potential; grounding connects the electrical system to earth. Both are needed for fault current return.
- Overcurrent device sizing
- The overcurrent device protects the conductor; its rating may not exceed the corrected conductor ampacity except where the code permits the next standard size.
- Working clearance requirement
- A clear space of specified depth must be maintained in front of electrical equipment, measured from live parts or the enclosure face, and kept free of storage.
- Lockout tagout sequence
- Isolate the source, apply a lock and tag, verify absence of voltage with a tested meter, and confirm the tester on a known live source.
- Rough-in inspection
- The rough-in inspection occurs after wiring is installed but before it is concealed or covered, allowing the AHJ to verify boxes, raceways, and bonding.
- Deficiency notice response
- Deficiencies must be corrected and re-inspected; the circuit may not be energized or concealed until cleared or written approval is granted.
- Insulation resistance test
- A DC test voltage is applied to de-energized conductors and the resistance recorded after stabilization; low values indicate moisture or damaged insulation.
- Bonding continuity test
- A low-resistance reading must be confirmed between every bonded metal part and the grounding electrode; a high reading indicates a loose connection.
- Phase rotation check
- Before energizing three-phase motors, verify phase sequence so rotation is correct and reverse-rotation damage or process hazards are avoided.
- Amended permit trigger
- Changes from the permitted drawings, including added loads or relocated panels, require an amended permit and updated load calculations before the work proceeds.
- Arc flash incident reporting
- Electrical contact and arc flash events must be reported to the AHJ, investigated, and followed by corrective action documented by the FSR.
- GFCI protection purpose
- Ground fault circuit interruption detects small current imbalances to ground and quickly opens the circuit, reducing shock risk in wet and damp locations.
- AFCI protection purpose
- Arc fault circuit interruption detects characteristic arcing signatures in branch wiring and opens the circuit to reduce fire risk in specified dwelling circuits.
- Load calculation purpose
- A load calculation sums demand loads to size service and feeders so the installation carries expected demand without exceeding conductor or device ratings.
- Standard overcurrent sizes
- Standard device ratings include 15, 20, 30, 40, 50, 60, 70, 100, and 125 amperes; the next size up rule applies only under code conditions.
- Concealment rule
- Conductors and boxes may not be permanently concealed until the required inspection is completed or the AHJ has granted written approval to proceed.
- Qualified person definition
- A qualified person holds a certificate of qualification or is a registered apprentice permitted to perform the work under the required level of supervision.
- Record retention duty
- The FSR keeps drawings, load calculations, and inspection records for the period set by the AHJ and produces them on request during an inspection.
- Energization approval
- New services and equipment may be energized only after the AHJ approves the installation or the code permits temporary connection for testing purposes.
- Licence renewal condition
- FSR status depends on renewing the licence and completing required continuing education; a lapsed licence invalidates permits taken out under it.
- Working alone restriction
- Where regulations restrict working alone on energized equipment, a second qualified person must be present to isolate and provide rescue assistance.