Raceways
1" conduit is required to be supported at which intervals of length?
What is 2m for 27 and 35 trade size conduit. (12-1010)
This is permitted to be between a seal and the device being sealed in a Zone 2 area.
The table used to determine the ampacity of flexible cord
What is Table 12. (4-102)
Motor data needed to size a motor overload includes...
Full load amps and service factor. (28-306)
The highest point at which a panel board in a dwelling unit can be installed.
What is as high as possible, with no overcurrent device operating handle positioned more than 1.7m above the finished floor level.
These must not be present within raceways, except in the case of busways, wireways, cable trays and surface raceways with removable covers.
What are Joints or Splices. (12-912)
The maximum distance a seal can be from the device being sealed in a Zone 2 area.
What is 450mm from the enclosure. (18-154 sub rule 1a)
The smallest AWG the service neutral conductor can be.
What is No. 10 AWG copper or No. 8 AWG aluminum. (4-018 sub rule 3a)
Two types of protection a motor needs.
Over current and Overload. (28-200 and 28-300)
The disconnect must be located here in a transformer circuit.
What is in the primary circuit of each power and distribution transformer. (26-248)
To meet code, the wall thickness of boxes to be drilled and tapped in the field shall be sufficient to ensure thread engagement of how many threads?
What is at least three complete threads to ensure sufficient thread engagement. (12-1008)
The type of flex that must be used in Zone 2 areas.
What is liquid-tight flexible metal conduit and connectors, marked for heavy duty. (18-152 sub rule 1h)
You are allowed to phase the neutral with white tape when...
What is when you identify insulated neutral conductors larger than No. 2 AWG copper or aluminum. (4-026)
At what HP could a motor not need overload protection?
What is...
a) a manually started motor rated at 1 HP or less that is continuously attended while in operation and is on a branch circuit having overcurrent protection rated or set at not more than 15 A or an individual branch circuit having overcurrent protection as required by Table 29 if it can be readily determined from the starting location that the motor is running.
b) an automatically started motor having a rating of 1 HP or less forming part of an assembly equipped with other safety controls that protect the motor from damage due to stalled rotor current and on which a nameplate, located so that it is visible after installation, indicates that such protection features are provided, or
c) a motor that conforms with CSA C22.2 No. 77.
(28-308)
The ampacity rating required by a conductor when feeding a transformer in a normal installation.
a) not less than 125% of the rated primary current of the transformer for a single transformer; or
b) not less than the sum of the rated primary currents of all transformers plus 25% of the rated primary current of the largest transformer for a group of transformers operated in parallel or on a common feeder.
(26-256)