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Electrical Symbols For Building Plans For A House - Part 2

Part 1

It should be noted that the notes on architectural plans are as important as the symbols.

It is key, to the complete understanding of the plans and drawings that the notes are read in conjunction with reviewing them.

Table 1 presents the most common electrical symbols used in house construction. Continued.

Table 1
Electrical Devices & Their Symbols

Device
Name

Device
Symbol

Device
Picture

Comment

Light Fixture - Wall Mounted - Sconce

wall mounted light fixture electrical symbol
wall mount light fixture

The symbol does not indicate the type of fixture. The symbol only tells the electrician that he must install a wall electrical box for a light fixture in that location.

Light Fixture - Ceiling Mounted

ceiling mounted light fixture electrical symbol
ceiling mount light fixture

The symbol does not indicate the type of fixture. The symbol only tells the electrician that he must install a ceiling, light fixture, electrical box in that location.

Light Fixture - Pull Chain

pull chain light fixture electrical symbol
pull chain lamp socket

The exact style of pull chain lamp socket is usually left to the discretion of the electrical contractor.

Light Fixture - Recessed

recessed light fixture electrical symbol
recessed light fixture

The notes will specify the style and type of recessed light fixture including the trim.

Ceiling Fan

ceiling fan electrical symbol
ceiling fan mount electrical box

This symbol specifies that a ceiling fan electrical box must be installed in this location. A ceiling fan electrical box can support more weight than a light fixture electrical box.

Exhaust Fan

exhaust fan electrical symbol
exhaust fan

The notes will generally specify make and model of the exhaust fan. Exhaust fans are usually supplied by the electrical contractor who hooks up the electrics and the HVAC contractor installs the duct work.

Additional information on exhaust fans.

Exhaust Fan & Light Combo

exhaust fan light combo electrical symbol
exhaust fan and light combo

As above with the addition that the exhaust fan has a light associated with it. In many cases the unit will require two wall switches; one for the fan and one for the light.

Smoke Detector

smoke detector electrical symbol
smoke detector

Today, most smoke detectors are combination smoke/carbon monoxide detectors.

Telephone

telephone electrical symbol
telephone outlet

The notes will specify any special features with respect to the telephone outlets.

Door Bell - Button

door push button electrical symbol
door bell push button

The notes should specify the make and model of the door chimes and the push buttons.

Electrical Panel

electrical panel electrical symbol
electrical panel

The notes may or may not specify an electrical panel (load center) manufacture and/or the number of circuits. In many cases it is left to the discretion of the electrical contractor. It is expected that the electrical contractor will provide the correct amount of circuits to meet the local building codes.

Fluorescent Light Fixture

fluorescent light fixture electrical symbol
single tube fluorescent light fixture

The number of horizontal lines between the vertical end lines, indicate the number of lamps. The notes will state the style of fixture.

Cable TV

cable tv electrical symbol
tv outlet

The electrical contractor may or may not do the termination of the cable to the outlet.