Oregon Low Voltage Practice key terms

A license issued by the Oregon Building Codes Division authorizing a business to perform electrical work within a specific specialty, such as low voltage, under the supervision of a licensed electrician.

An individual licensed by the state of Oregon to perform electrical work limited to a specific scope, such as low voltage systems, after meeting experience and examination requirements.

The state agency responsible for administering and enforcing Oregon's building codes, including electrical licensing, permits, and inspections, and for adopting electrical rules under OAR chapter 918.

Oregon Administrative Rules chapter 918, division 281, which sets forth the scope of electrical work, licensing requirements, and permit procedures for electrical contractors and electricians in Oregon.

A formal authorization issued by the building codes division or local jurisdiction allowing specific electrical work to proceed, subject to inspection and compliance with adopted codes.

An inspection conducted after electrical wiring and raceways are installed but before concealment by drywall or other finish materials, ensuring code compliance before the work is hidden.

The last inspection of an electrical installation, performed after all devices, fixtures, and equipment are installed and operational, to verify compliance before the system is approved for use.

The model code for electrical installations in the United States, published by the National Fire Protection Association and adopted with amendments as the Oregon Electrical Specialty Code.

The Oregon-specific adoption of NFPA 70 with state amendments, governing the installation of electrical conductors, equipment, and systems within Oregon, including low voltage work.

The definitions article in NFPA 70 that establishes the meaning of technical terms used throughout the Code, including terms like 'low voltage' and 'limited energy circuit'.

A term generally referring to circuits operating at 50 volts or less, though specific definitions vary by code article; often used for signaling, control, and limited energy systems.

A circuit that is power-limited and operates at voltages and currents below thresholds set by the NEC, allowing reduced wiring methods and materials compared to general-purpose circuits.

A circuit classified by the NEC as having limited power and voltage, typically not a shock hazard, and permitted to use less stringent wiring methods under Article 725.

A circuit classified by the NEC as having higher energy than Class 2 but still limited, often used for signaling and control, with specific wiring and separation requirements under Article 725.

The NEC article covering Class 1, Class 2, and Class 3 remote-control, signaling, and power-limited circuits, including wiring methods, power sources, and separation requirements.

The NEC article governing communications circuits, such as telephone and data, including cable types, installation requirements, and protection against electrical hazards.

The NEC article covering fire alarm systems, including power-limited and non-power-limited fire alarm circuits, wiring methods, and equipment requirements.

A circuit that is part of a fire alarm system and is classified as either power-limited or non-power-limited, with specific installation and performance requirements under Article 760.

A cable used for transmitting communication signals, such as twisted-pair or coaxial, and listed for the purpose, with specific markings and fire-resistance ratings.

A cable with a jacket and insulation that has low smoke and flame spread characteristics, approved for installation in air-handling spaces without additional conduit.

A cable designed for vertical installation in shafts between floors, with fire-resistant characteristics suitable for riser applications, as specified in NEC articles.

An enclosed channel designed for holding wires, cables, or busbars, such as conduit, tubing, or wireways, used to protect and route conductors.

A tubular raceway used to protect and route electrical conductors, available in metal or nonmetallic types, with specific installation and fill requirements.

A rigid structural system used to support and route cables, typically in industrial or commercial settings, with requirements for fill, support, and grounding.

The process of connecting electrical equipment and systems to the earth to limit voltage during faults or lightning, providing a reference and safety path.

The permanent joining of metallic parts to form an electrically conductive path that ensures electrical continuity and the capacity to conduct safely any current likely to be imposed.

The conductive path installed to connect normally non-current-carrying metal parts of equipment together and to the system grounded conductor or grounding electrode conductor.

A device or system that protects conductors and equipment from excessive current by automatically opening the circuit when current exceeds a predetermined value.

An overcurrent protective device with a fusible element that melts and opens the circuit when current exceeds its rating, providing one-time protection.

A reusable overcurrent protective device that automatically opens a circuit when current exceeds a set value and can be manually reset to restore power.

An unintentional electrical connection between a current-carrying conductor and ground, which can cause shock hazards and requires protection by grounding and ground-fault devices.

A device that detects a difference between current in the hot and neutral conductors and opens the circuit to prevent electric shock from ground faults.

A safety procedure that involves locking and tagging energy-isolating devices to ensure equipment is de-energized before work, preventing accidental energization.

Equipment such as gloves, eye protection, and insulated clothing worn by workers to protect against electrical, physical, and environmental hazards on the job site.

A device used to verify the presence or absence of voltage in a circuit, essential for safety before working on electrical equipment.

An electrical test instrument that measures voltage, current, and resistance, commonly used by low voltage technicians for troubleshooting and verification.

The outer protective covering of a cable, providing mechanical and environmental protection and often bearing markings that indicate the cable's type and rating.