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Electric Wiring

NEC, Wiring Cables, Switches and Receptacles

QuestionAnswer
What is the common name for UNGROUNDED CONDUCTOR? What COLOR are the wires and screws? HOT CONDUCTOR BLACK WIRES BRASS COLOR SCREWS
Whats the maximum amperage for: 14 AWG 12 AWG 10 AWG 15 AMPERES 20 AMPERES 30 AMPERES
In the NEC, mandatory rule 90.5, shall means? MUST
SLOTS ON A RECEPTACLE LONG SHORT GROUNDED--- NEUTRAL UNGROUNDED--- HOT
What does the Nationally Recognized Testing Laboratories do? Name some laboratories? Their Third party testing of products in effort to reduce safety risk, they test, evaluate and then labeled. UL,CSA, ITS,NEMA
How should you run wires to avoid heat induction? Contain within same cable tray. Wires should be kept together. If not a magnetic field can occur.
In residential wiring what voltage runs through the transformer? 120/240 60AC
What are the two primary measuring systems used? SI(metric system) and Trade Size (inch-lb)
What are Single-Pole switches and what is their function? Control lights from 1 location, Disconnects power in Off-positions.
On a Duplex Receptacle what size AWG conductor is used? What type of receptacles must be installed? MUST USE SIZE 12AWG. TAMPER-RESISTANT RECEPTACLES
What is the National Electrical Code(NEC)? THE STANDARD ELECTRICAL CODE FOR SAFETY.
The two most commonly used Metric pre-fixes, and what are their values? MILLI- .001 KILO- 1000
WATTS ARE MEASURED = P POWER = P
AMPERES ARE MEASURED = I CURRENT = I
OHMS ARE MEASURED = R RESISTANCE = R
VOLTS ARE MEASURED = E ELECTROMOTIVE FORCE = E
What are Arc Flashes? A Major Short circuit or ground fault at the main service panel, than can deliver alot of heat up to 35,000 F and tremendous air pressure wave.
T-RATED switches are used with what type of lighting and whats the common name? Incandesent lights, which are designed to handle a momentary high inrush. Tungsten filament lamp
WHAT IS THE ELECTRON FLOW THEORY? CURRENT FLOW FROM NEGATIVE TO POSITIVE
WHAT IS THE CONVENTIONAL CURRENT FLOW THEORY? STATES ELECTRICAL CURRENT FLOWS FROM POSITIVE TO NEGATIVE
WHAT ARE INSULATORS? examples RESIST THE FLOW OF ELECTRICITY.. Rubber, Plastic, glass, wood
WHAT ARE CONDUCTORS? examples MATERIALS WHICH ELECTRICITY FLOWS EASILY... Steel, Aluminum, copper, silver, gold
Whose responsible for enforces the requirements of a code or standard, equipment, materials, an installation or a procedure. they "approve" Authority Having Jurisdiction(AHJ)... Electrical Inspecter
What does the nucleus of an atom contain? PROTONS AND NEUTRON.
The NEC permits you can re-identify.... Nonmetallic-sheath cable(NM), Travelers, Switch-Loop. Feed to switch
What are notations? Are found on plans, descriptive, graphically measurements.
What are symbols? Represent words, phrases, numbers, quantities...
What is electricity? The Flow of electrons.
What is the common name for the GROUNDED CONDUCTOR? What color is the wire and color screws? NEUTRAL CONDUCTOR WHITE OR GRAY SILVER COLOR SCREWS
What size wire are you NOT able to change? 6AWG OR SMALLER
What are specifications? Specialized, detailed information given for each trade. Includes sizes, types, and desired quality.
What are the Conductors between the switch and switch outlet? SWITCH-LOOP
WHAT IS OHMS LAW? THAT IN A DC CIRCUIT, THE CURRENT IS DIRECTLY PROPORTIONAL TO THE VOLTAGE AND INVERSELY PROPORTIONAL TO THE RESISTANCE. (E=IxR) Volts=Amps x Ohms
What is a dwelling unit? Permanent Residence provisions including Cooking, Bathroom(sanitation), Sleeping, and Living.
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