Switches
A switch control is needed from more than 2 locations.
What are four-way switches?
This gauge size conductor is inside the yellow romex.
What is twelve gauge conductor?
What are overcurrent protection devices?
When a load is to be controlled from 2 locations.
What are the three-way switches?
To handle the higher current demands of appliances like electric clothes dryers, these switches—capable of disconnecting both ungrounded conductors simultaneously—are sometimes used.
What are double-pole switches?
Popular colors for the "hot" conductor.
What is black?
The rapid formation of this oxide layer on aluminum can prevent good conductivity unless pierced by the connector.
What is aluminum oxide?
This condition can be detected when electric motors operate more slowly and generate excess heat.
What is voltage drop?
This type of screw hole of a metal box are usually effective when grounding switches and other devices.
What is #6-32?
Illuminated toggle switches, rocker switches, and illuminated faceplates all share this electrical requirement?
What is the grounded circuit conductor?
The maximum overcurrent protection for 14 AWG copper conductors.
What is 15 amperes?
Due to its lower current-carrying capacity at 30*C for the same size and insulation, this conductor requires upsizing compared to copper.
What is aluminum?
These switches have 2 terminals for travelers.
What are three-way switches?
In this type of switch, the indicator is never completely off.
What is a switch with a pilot light?
These devices may control both resistive and inductive loads.
What are AC toggle snap switches?
True or False: Cooper conductor of the same size as aluminum conductor of the same size have a higher resistance.
What is False?
According to NEC Table 210.24, this is minimum branch-circuit conductor size allowed.
What is 14 gauge?
When control is desired from three locations, this type of switch is connected to the travelers between two three-way switches, with one three-way fed by the source and the other connected to the load.
What is a four-way switch?
These switches, if marked with a "T" rating, can be used for tungsten filament loads within their ratings.
What are AC/DC general-use toggle switches?
This term describes how aluminum wire expands and contracts more than copper under equal load, often leads to poor connections.
What is creep or cold flow?
The NEC requires this conductor to have a continuous white or gray outer finish?
What is grounded conductor?
A grounded conductor is not required where these devices with integral enclosures comply with NEC Article 300.15(E).
What are snap switches?