CO Electrician flashcards
CO Electrician · 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.
- State Electrical Board
- The Colorado board within DORA that licenses electricians, adopts rules, approves continuing education, and disciplines licensees for violations.
- Master electrician scope
- A master electrician may design, install, and supervise electrical work of any type covered by the license and may supervise apprentices and journeymen.
- Residential wireman limit
- A residential wireman license covers wiring in one-family and multifamily dwellings only, excluding commercial and industrial occupancies.
- Apprentice supervision rule
- Registered apprentices must work under the direct supervision of a licensed journeyman or master electrician and may not work independently.
- Grounds for discipline
- Unlicensed practice, code violations, fraud in licensing, and failure to supervise are grounds for Board sanctions from reprimand to revocation.
- License display requirement
- A licensee must carry the license or a copy and present it on request of the Board, its designee, or the authority having jurisdiction.
- Ohm's law
- The relationship E = I x R, where E is voltage in volts, I is current in amperes, and R is resistance in ohms.
- Single-phase power formula
- Real power in watts equals current in amperes multiplied by voltage in volts, adjusted by the power factor for AC loads.
- Three-phase power formula
- Power equals 1.732 times current times voltage times power factor for a balanced three-phase load.
- Voltage drop formula
- Single-phase voltage drop equals 2 x K x I x L divided by circular mils, where L is the one-way circuit length.
- Continuous load factor
- A load expected to operate three hours or more must be calculated at 125 percent of its rating for conductor and overcurrent sizing.
- Conductor ampacity adjustment
- Ampacity is reduced for high ambient temperature and when more than three current-carrying conductors share a raceway.
- GFCI protection locations
- Ground-fault circuit-interrupter protection is required in dwelling bathrooms, kitchens, garages, outdoors, and other listed wet or damp areas.
- AFCI protection
- Arc-fault circuit-interrupter protection is required for most branch circuits in dwelling units to detect dangerous arcing faults.
- Equipment grounding conductor sizing
- The equipment grounding conductor is sized from NEC Table 250.122 based on the rating of the circuit overcurrent protective device.
- Working space clearance
- At least 30 inches wide, 36 inches deep, and 6.5 feet high of clear space is required in front of electrical equipment.
- Standard branch-circuit ratings
- Common branch-circuit ampere ratings are 15, 20, 30, 40, 50, and 60 amperes, each with specific receptacle and conductor rules.
- Permit requirement
- An electrical permit must be obtained from the local authority having jurisdiction before any electrical work begins.
- Permit application contents
- The application identifies the owner, contractor, scope of work, and the license number of the electrician responsible for the job.
- Rough-in inspection
- The rough-in inspection occurs after wiring is installed but before walls or ceilings are covered, so concealed work can be examined.
- Final inspection
- The final inspection verifies devices, fixtures, grounding, and testing after the system is complete and energized.
- Re-inspection fees
- Fees are charged when work fails inspection or the contractor is not ready at the scheduled inspection time.
- Certificate of occupancy
- Final approval is issued after the final inspection passes and all fees are paid, allowing occupancy or energization.
- Temporary power permit
- Temporary service installations for construction sites require their own permit and inspection before being energized.
- Stop-work order
- An AHJ may halt work when unpermitted or unsafe work is found; the installation may have to be exposed or removed.
- Renewal cycle
- Colorado electrician licenses renew on a fixed cycle set by Board rule, commonly every three years with required continuing education.
- Code-update CE requirement
- A portion of continuing education hours must cover the currently adopted NEC edition and Colorado amendments.
- Approved CE providers
- Continuing education credit is granted only for courses from providers approved by the Board and related to electrical work or safety.
- CE record retention
- Licensees must keep certificates of completion for the audit period and produce them if the Board requests verification.
- Late renewal consequences
- Late renewal may incur a fee and, after the grace period, may require reinstatement or reexamination before practice resumes.
- Duplicate CE credit
- Repeating the same continuing education course within one renewal cycle generally does not earn additional credit hours.
- Address of record
- Renewal notices go to the address on file with the Board; an outdated address does not excuse a missed renewal deadline.