low votage
Low Voltage Wiring
Low voltage wiring is the wiring for audio, video, telephones, alarm systems, HVAC, and generally any wiring for things using less than 24 volts. Low voltage is often used only with small electrical systems as it is not suitable for large-scale electrical projects. There are very real safety risks associated with low-voltage systems. Low-voltage can…
Read MoreBasic Units of Electricity
The three basic units of electricity are voltage, current and resistance. Voltage is measured in volts, current is measured in amps and resistance is measured in ohms. There is a basic equation in electrical engineering that states how the three terms relate. It says that the current is equal to the voltage divided by the…
Read MorePhase Out of Incandescent Light Bulbs
In 2007, the U.S. federal government enacted legislation to make incandescent light bulbs more efficient by setting maximum wattage requirements. Governments around the world have passed measures to phase out incandescent light bulbs for general lighting in favor of more energy-efficient lighting alternatives. A compact fluorescent lamp (CFL) uses a fluorescent lamp tube which is…
Read MoreNational Electrical Codes
The National Electrical Code protects the public by establishing requirements for electrical wiring and equipment. An electrical code is a set of regulations for electrical wiring. An electrical code provides standards to ensure electrical wiring systems are safe and unlikely to produce either electric shocks or fires. Electrical contractors and workers use the NEC for…
Read MoreSolar Power Systems
Solar panels are made up of photovoltaic (PV) cells. A solar cell is a crystal, and the bonds are made of electrons that are shared between all of the atoms of the crystal. When light gets absorbed by the cell, electrons can move around the crystal freely, creating a current and converting sunlight into direct…
Read MoreLow Voltage Electrical Systems
Low voltage refers to electrical power supplies that produce relatively low power levels. These systems use special transformers to reduce the main power supply down to a lower voltage. Low voltage wiring is the wiring for audio, video, telephone, intercom, data, alarm systems, HVAC, and generally any wiring for things using less than 24 volts.…
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