I'm wondering how combos of AFCI & GFCI protection on breakers and outlets affect overall circuit safety & performance. What I mean is, how do different combinations of GFCI and/or AFCI protection relate when applied on a circuit breaker and/or an outlet?
Some combinations I've heard/thought of already are as follows, but I'm not sure how the different protection methods and redundancy between the same kinds of protection can help or hurt one another. The items in bold are the ones in particular I'd like to learn more about. How does the combination of safety devices interact with one another? Assume the circuit is grounded (e.g. connected via NM 14/2 with ground wire hooked up properly throughout.
- regular breaker with overcurrent protection + regular outlet
- reg breaker + GFCI outlet
- GFCI breaker + GFCI outlet
- AFCI breaker + GFCI outlet
- AFCI & GFCI combo breaker + GFCI outlet
- AFCI & GFCI combo breaker + regular outlet