Electrical & Controls Electrical theory
Conductors, insulators and circuit protection
Tell conductors, insulators and semiconductors apart and match fuses, breakers and overloads to the loads they protect.
Why wire size, breaker rating and overload class matter, how protectors are built and the common switch types found in HVAC equipment.
Before this skill
Required
HVAC Excellence competency codes
- ELEC-020
- ELEC-021
- ELEC-017
- ELEC-018
- ELEC-019
- ELEC-062
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