Glossary

Aluminum Electrical Conduit A conduit made of aluminum for electrical applications and is used primarily in commercial and industrial applications.
Below Ground Installation An installation of conduit below ground level usually in an open trench or in a continuous trenching application.
Blow-in Installation An air assisted installation of cable, where the air is used to blow the cable through a conduit.
Cable Jetting A method of installing cable in a conduit where a cable is blown through a conduit while being pushed through the conduit simultaneously.
Cable-In-Conduit Typically an HDPE conduit with cable pre-installed in the conduit, allowing for one step installation of the conduit and desired cable.
Coaxial Cable A type of layered electrical cable containing an inner conductor, an insulating layer, a tubular conducting shield, and an outer insulating sheath. Coaxial cable is generally used in telecommunications and cable TV applications.
Conductor A wire or cable between two transmission towers or distribution poles through which electric current flows.
Conduit A pipe or tube used to protect cables and electrical wiring.
Conduit Fittings Accessories or attachments which serve a specific function that are connected to a conduit. There are many types of conduit fittings such as couplings, adapters, sweeps and LB boxes.
Conduit ID The inside diameter measurement of a conduit.
Conduit OD The outside diameter measurement of a conduit.
Conduit Repair Kit A packaged kit containing split conduit and other necessary parts to repair a broken conduit.
Copper Cable A type of wiring where copper is used as the electrical conductor.
cPVC Chlorinated polyvinyl chloride is PVC infused with chloride resin which allows for greater flexibility and a higher temperature tolerance.
Direct Buried Cable Cable or wiring that is directly buried in the ground without being encased in conduit or some other form of protective sleeve.
Directional Boring Commonly called horizontal directional drilling, directional boring is the process of using a drilling rig to bore an underground path for the purpose of installing underground conduit or cables with minimal impact to the surrounding area.
Electric Cooperative (co-op) A non-profit electric utility that is owned by its members and self-governed by an elected board of directors.
Electrical Conduit Conduit designed for the purpose of protecting cable or wires with an electric current.
Electrical PVC Conduit A polyvinyl chloride based conduit designed for protecting electrical cables or wiring.
EMC The acronym for Electrical Metallic Conduit.
EMT The acronym for Electrical Metallic Tubing. It is generally made of steel.
Excavation Any man-made cut, trench, depression, or cavity in the earth surface formed by moving dirt or other earth material.
Fiber Optic Cable A type of cable containing thin glass or plastic filaments that transmit digital data at high speeds using rapid pulses of light beams.
Flexible PE Conduit A polyethylene conduit that is flexible in nature and can be wound onto reels and provides flexibility in working around obstructions during installation.
FMC The acronym for Flexible Metal Conduit.
HDPE High Density Polyethylene is a durable thermoplastic used in the production of conduit and other consumer products.
Headend A control center in a cable television system that receives, monitors, and distributes the TV signal to the cable television network.
Horizontal Directional Drilling (HDD) A phrase commonly used to describe directional boring.
Inner duct A small diameter conduit designed for placement into larger diameter conduits.
Investor-Owned Utility (IOU) A privately-owned electric utility organized under a State’s laws with the purpose of providing electricity service and earning a return for shareholders.
LB Box A threaded conduit fitting that is commonly attached to a conduit at the entrance point of electrical wires into a building or structure. The LB Box allows for easier bending of the wires for service entrance.
Municipal Utility A utility system owned and operated by a city or municipal government.
Overhead Wires Wires that are above ground and usually strung between two poles.
Photovoltaic Conversion The process of converting energy from sunlight into electric energy and is usually accomplished using photovoltaic panels or solar panels.
Plenum Rating A rating regulated by standards agencies that defines the standard for cable and plastics that can be installed in plenum spaces of buildings.
Primary Cables Electrical cables connecting a power substation to a transformer.
Pulling Installation A method of installing cable in a conduit where the cable is pulled through a conduit using a pull line or rope.
PVC PVC, or polyvinyl chloride, is a synthetic plastic polymer commonly used in the production of conduit and pipe.
PVC Cement A type of glue or chemical solvent used to bond pieces of  polyvinyl chloride together.
PVC Conduit A conduit made of polyvinyl chloride.
RG-6 Cable A common type of coaxial cable with an 18 AWG center conductor and 75 ohm characteristic impedance.
RMC The acronym for Rigid Metallic Conduit. It is also referred to as galvanized rigid conduit.
RSC The acronym for Rigid Steel Conduit.
Schedule 40 Conduit A conduit meeting the wall thickness standards of schedule 40 conduit as prescribed by the National Electrical Manufacturers Association. Schedule 40 conduit has thinner walls than schedule 80 conduit.
Schedule 80 Conduit A conduit meeting the wall thickness standards of schedule 80 conduit as prescribed by the National Electrical Manufacturers Association. Schedule 80 conduit has thicker walls than schedule 40 conduit.
SDR An acronym for standard dimension ratio. SDR is the ratio of the average conduit diameter divided by the minimum wall thickness of a conduit. SDR values typically range between SDR 9 and SDR 17.
Secondary Cables Electrical cables connecting a transformer to an end user.
SIDR An acronym for standard inside dimension ratio.
Snap Duct A phrase commonly used to describe a self-locking split conduit.
Split Conduit A two-piece conduit that can be joined together to make a complete conduit. It is commonly installed around existing cables when a conduit has been damaged or protection needs to be put around a cable system.
Split Coupling A two-piece conduit fitting that is used to join sections of split conduit together in a continuous run.
Split Duct Another phrase for split conduit.
Split Sweep A two-piece sweep or bend that can be installed around cables and joined together to make a turn in conduit system or to bring a conduit system from underground to above ground.
Split Wye A Y-shaped,  two-piece conduit fitting with three openings that is installed around existing cables to create or join a branch line in a conduit run.
Tongue & Groove Conduit A two-piece conduit that has routed edges creating an interlocking design that allows the two half pieces to rest together. Tongue and groove conduit is not a self-locking two-piece conduit and requires the use of cable ties, hose clamps or duct tape to hold it together.
Underground Cables Wires or cables that are installed underground and are usually enclosed in conduit or direct buried in the ground.
uPVC Unplasticized polyvinyl chloride is a plastic compound with no added plasticizers and is used in manufacturing conduits and construction materials.