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We thought it would be helpful to provide a list of common terms used when discussing your homes electrical appliances and your homes power sources.

Amperage: The amount of current flow.


Amp: a unit of electric current used to measure the rate of flow.


Capacitor: an electric circuit element used to store charge temporarily.


Circuit: A path of conductors that an electric current follows.


Conductor: A material through which electric current flows easily.


Current electricity: Electricity that flows through a circuit, or a continuous unbroken path.


Direct current (DC): Electric current that flows in one direction only.


Electricity: a form of energy produced by the flow or accumulation of electrons.


Electromagnet: A temporary magnet formed when electric current flows through a wire or other conductor


Electron: a subatomic particle with a negative electrical change.


Flourescence: A process by which substances give off light or another form of electromagnetic radiation when they absorb energy.


GFI: Ground fault interruptor: A special electrical receptacle or outlet that is installed near water sources (ie: bathrooms, kitchen and outdoor applications) as a safety precaution that can stop electrical power within milliseconds.


Incandescence: The effect by which an object begins to glow when heated.


Insulator: A material that opposes the flow of electric current.


Ion: An atom or group of atoms that has either gained or lost electrons and has an electric current.


Low voltage: Lamps that operate at a lower voltage than line voltage are termed low voltage lamps. These lamps require a transformer to reduce line voltage to usually 12 or 24 volts.


Ohm: Unit of electrical resistance used to measure a material’s resistance to the flow of electric current.


Parallel circuit: a circuit that splits into branches. A break in one branch will not stop current in the other branches.


Receptacle: A device installed on a wall or floor to connect power supply to appliances that are equipped with plugs.


Resistance: The degree to which a substance resists electric current.


Resistor: A device used to control current by providing resistance.


Series circuit: A circuit that connects a source, load, and conductors in a single loop. Any break in the circuit will stop the flow of current.


Switch: A device installed on a wall that controls power sources such as receptacles.


Superconductors: Materials that lose all resistance to the flow of current at low temperatures. They operate extremely fast and produce almost no heat.


Transfer switch: A switch designed to transfer electricity being supplied to loads from one source of power to another (commonly used on generators).


Transformation: The change in energy from one type to another as in a battery, which changes chemical energy to electricity.


Volt: Unit of potential difference similar to pressure.


Voltage: A type of pressure that drives electrical charges through a circuit.


Watt: Unit of power equal to volts times amps.


Kellam Mechanical technician wearing PPE Tell ‘em Kellam has compassion for all those trying to navigate lifestyle changes during the COVID-19 pandemic, and YES we will remain available to meet your heating, air conditioning, plumbing and electrical household needs. 

Kellam Mechanical technicians will practice social distancing, clean, safe and healthy practices prior to arrival and while in your home. 

Technicians have been supplied with masks, shoe booties, a red carpet, gloves and cleaning supplies in their vans. 

We are happy to reschedule appointments for those who have ill people in the home. 

For your safety, we prohibit any ill employee to report to work.

Please stay safe and if you have questions or concerns about any Kellam Mechanical service, do not hesitate to contact us here, via chat, email, or give us a call at (757) 430-0358.


The Kellam Mechanical Team

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