Overcurrent Protection

The most fundamental requirement in any electrical system is proper overcurrent protection, for conductors as well as equipment. According to NEC definitions, overcurrent protection is provided "to open the circuit if the current reaches a value that will cause and excessive or dangerous temperature in conductors or conductor insulation." This section addresses various topics related to protecting conductors and equipment. Select the topic from the menu at the left.

Links to Related Topics

Grounding
Transformers
System Voltage Variations
Electrical Service And Distribution
Wiring Methods and Cost Estimating