CEC Table 1 & 2 : 

Copper Conductor Ampacities &
Maximum Allowable Number of Conductors of One Size in Conduit

CEC Table 3 & 4 : 

Aluminum Conductor Ampacities &
Maximum Allowable Number of Conductors of One Size in Conduit

Transformer Feeder Sizing
600V-208V
Dry Type
CEC 26-254 & 26-256

Transformer Feeder Sizing
480V-208V
Dry Type
CEC 26-254 & 26-256

Motor Breaker Sizing : 208V/3Ph
CEC 28-010 & 28-704

Motor Breaker Sizing : 600V/3Ph
CEC 28-010 & 28-704

Duct Bank Ampacity – Aluminum
CEC Table D11

Duct Bank Ampacity – Copper
CEC Table D11A