CEC 2024

Question 1

What’s does section 2 cover?

Answer 1

General Rules

Question 2

Which tables give you info on wire stranding?

Answer 2

Table D5 and B12-2

Question 3

Table for the coefficient of expansion joints?

Answer 3

B12-4

Question 4

Rule # for conduit sizing?

Answer 4

12-910

Question 5

Rule talking about equipment ventilation?

Answer 5

Rule 2-324 and rule 2-324 apdx B

Question 6

Table for cable tie ratings?

Answer 6

Table B12-3

Question 7

What is table 9 used for?

Answer 7

Maximum conductor cross sectional area.

Question 8

Rule # for junction box sizes?

Answer 8

12-3036

Question 9

What does Section 0 cover?

Answer 9

scope and definitions

Question 10

What does section 12 cover?

Answer 10

Wiring methods.

Question 12

Table for maximum percent conduit and tubing fill?

Answer 12

Table 8

Question 13

Table for internal diameter/cross sectional area tubing and conduit?

Answer 13

Table 9

Question 14

Table for conductor dimension regarding conduit and tubing fill?

Answer 14

Table 6

Question 15

Table for enclosure types (non hazardous)

Answer 15

Table 65

Question 16

Table 12E is?

Answer 16

DLO cable ampacities in permanent installation cable tray.

Question 17

What is the minimum trade size raceway required for a pull box or junction box?

Answer 17

The minimum trade size raceway shall be the equivalent cable to trade size of raceway for the number and size of conductors in the cable.

This is applicable for Subrule 2).

Question 18

What is the required distance from the back wall to the cover of a pull box when used with No. 4 AWG or larger conductors?

Answer 18

Not less than the trade diameter of the largest raceway or equivalent cable plus 6 times the diameter of the largest insulated conductor.

This applies when the raceway or cable enters the wall of a box opposite to a removable cover.

Question 19

What is the minimum length requirement for a pull box used with straight pulls or runs of cable?

Answer 19

At least eight times the trade diameter of the largest raceway or equivalent cable.

This is necessary for straight pulls or runs of cable.

Question 20

What is the scope of Section 8?

Answer 20

Applies to maximum circuit loading, calculated loads for consumer’s services, feeders, and branch circuits, use of demand factors, branch circuit positions for dwelling units, and heater receptacles for vehicles.

Question 21

Define ‘Basic load’.

Answer 21

The load of lighting and receptacle circuits, based on the outside dimensions of a specific area of building occupancy, as listed in Table 14.

Question 22

What is ‘Calculated load’?

Answer 22

The load calculated in accordance with the applicable requirements of this Section.

Question 23

What does ‘Demonstrated load’ refer to?

Answer 23

Historical maximum demand watt information recorded over at least a 24-month period for the same type of facility, equated to watts per m².

Question 24

What is an ‘Electric vehicle energy management system’?

Answer 24

A means used to control electric vehicle supply equipment loads through processes like connecting, disconnecting, increasing, or reducing electric power.

Question 25

List the voltage divisors to be used for current calculations.

Answer 25

* 120 * 208 * 240 * 277 * 347 * 416 * 480

Question 26

What is the maximum allowable voltage drop in a feeder or branch circuit?

Answer 26

3% in a feeder or branch circuit and 5% from the supply side of the consumer's service to the point of utilization.

Question 27

True or False: The calculated load in a circuit may exceed the ampere rating of the circuit.

Answer 27

False.

Question 28

Define 'Continuous load'.

Answer 28

A load that persists for more than 1 hour in any 2-hour period or more than 3 hours in any 6-hour period, depending on the load rating.

Question 29

What must the continuous load not exceed when using a fused switch marked for continuous operation at 100%?

Answer 29

Shall not exceed 100% of the ampacities of conductors selected in accordance with Section 4.

Question 30

What are the demand factors based on when two or more loads are installed?

Answer 30

The one providing the greatest demand shall be used in determining the calculated demand.

Question 31

Fill in the blank: The ampacity of conductors of feeders or branch circuits shall be in accordance with the Section(s) dealing with the respective _______.

Answer 31

[equipment being supplied]

Question 32

What is required for calculations based on demonstrated loads?

Answer 32

Calculations must be performed by a qualified person as determined by the regulatory authority having jurisdiction.

Question 33

What happens when electric vehicle supply equipment loads are controlled by an electric vehicle energy management system?

Answer 33

The demand load for the electric vehicle supply equipment shall be equal to the maximum load allowed by the electric vehicle energy management system.

Question 34

What is the maximum continuous load for a fused switch marked for continuous operation at 80%?

Answer 34

Shall not exceed 80% of the ampacities of conductors selected in accordance with Section 4.

Question 35

List the conditions under which a load of a cyclic or intermittent nature shall be classified as continuous.

Answer 35

* If it meets the requirements of Subrule 3)

Question 36

What section covers grounding and bonding?

Answer 36

Section 10

Question 37

What section includes requirements for class 1 and class 2 circuits?

Answer 37

Section 16

Question 38

Section 54 covers?

Answer 38

Community antenna, distribution and radio and television installations

Question 39

Section 56 covers?

Answer 39

Optical fibre cables

Question 40

Section 60 covers?

Answer 40

Electrical communication systems