Timeline for AFCI breakers/protection and refrigerators - a bad idea?
Current License: CC BY-SA 4.0
19 events
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| Jan 8, 2020 at 19:55 | history | edited | Harper - Reinstate Monica | CC BY-SA 4.0 |
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| Nov 14, 2018 at 22:09 | comment | added | Ed Beal | Cathode is correct orange is isolated ground, red is usually e-power. | |
| Apr 19, 2018 at 19:32 | comment | added | manassehkatz-Moving 2 Codidact | @cathode Interesting - I've never looked it up, but I thought the hospital orange receptacles were to indicate which outlets had automatic backup generator power. | |
| Apr 13, 2017 at 12:22 | history | edited | CommunityBot |
replaced http://diy.stackexchange.com/ with https://diy.stackexchange.com/
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| Mar 8, 2017 at 21:44 | comment | added | William S. | I remember reading that hospital grade wiring typically has redundant ground paths and/or isolated grounds (symbolized by orange receptacles). Typical residential codes are often irrelevant when an engineer is stamping drawings/designs that are custom solutions for a specialty situation. | |
| Jan 5, 2017 at 15:56 | comment | added | Tester101 | @Harper There are always exceptions to every rule, however, those are made on a case by case basis by the AHJ. If the circuit is specifically for medical equipment, I'm sure exceptions can be made. Unfortunately, there's no way for an electrician (or inspector) to know what's going to be plugged into the general purpose receptacle branch circuit. | |
| Jan 4, 2017 at 23:23 | comment | added | Harper - Reinstate Monica | I think I got that out of an curated article on I believe ECMweb that I took at face value. But it can't be as simple as "GFCI everything always". what about medical equipment (camper using CPAP) or any other situation where a nuisance trip is more hazardous than a ground fault? | |
| Jan 4, 2017 at 23:17 | comment | added | ThreePhaseEel | @Tester101 -- there is no such Code clause as far as I know, then | |
| Jan 4, 2017 at 13:43 | comment | added | Tester101 | @ThreePhaseEel In that case, I'm not talking about kitchens. I'm talking about unfinished basements and garages, where GFCI is required in all receptacles. | |
| Jan 4, 2017 at 12:39 | comment | added | ThreePhaseEel | @Tester101 -- I was responding to your comment above that refers to finding a Code section that "suspend(s) GFCI requirements in locations where everything else must be GFCI..." | |
| Jan 3, 2017 at 23:12 | comment | added | ThreePhaseEel | @Tester101 -- it's actually not the case (the reason fridges in kitchens don't require GFCI protection is because only kitchen receptacles that serve "kitchen countertop surfaces", as well as kitchen dishwasher outlets, require GFCI protection in a dwelling unit. (Outside dwelling units, all kitchen receptacle outlets, including a receptacle dedicated to the fridge, must be GFCI protected.) | |
| Jan 3, 2017 at 23:08 | comment | added | ThreePhaseEel | The guy from Eaton (who just so happens to be one of the coinventors of the original Branch/Feeder AFCI setup) makes his case in this conference paper BTW. | |
| Jan 3, 2017 at 18:59 | history | edited | Harper - Reinstate Monica | CC BY-SA 3.0 |
Strike wrong part
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| Jan 3, 2017 at 18:55 | comment | added | Harper - Reinstate Monica | I had it, Tester. I had it in my hand... Nope, both my Google-Fu and my browser history is letting me down. I cannot find the reference for my 210.12 claim. Further digging DID reveal my claim of specific exemption for fridges in garages/basements was removed in 2008. So it appears I need to check dates a lot more closely, and capture links. | |
| Jan 3, 2017 at 15:31 | comment | added | Tester101 | 210.12 Arc-Fault Circuit-Interrupter Protection. (A) Dwelling Units. All 120-volt, single-phase, 15- and 20-ampere branch circuits supplying outlets or devices installed in dwelling unit kitchens... shall be protected by any of the means described in 210.12(A)(1) through (6): AFCI protection is required for a refrigerator. | |
| Jan 3, 2017 at 15:22 | comment | added | Tester101 | Can you point to the code section that "suspend(s) GFCI requirements in locations where everything else must be GFCI, such as a garage or basement."? | |
| Jan 3, 2017 at 12:49 | comment | added | ThreePhaseEel | I can dig up some stuff from an Eaton engineer later that argues that the GFPE requirement is actually superior fire protection to the "series arc" tests UL came up with | |
| Jan 3, 2017 at 12:47 | comment | added | ThreePhaseEel | Your Code cite is a swing and a miss -- 210.12(A) is the correct section, and kitchens are a new addition to it in the 2014 NEC. Also, the only AFCIs I know of to have dropped the GFPE (30mA ground fault trip) function are the latest gen GE ones (the Eaton, Square-D, and Siemens designs still all do it) | |
| Jan 3, 2017 at 4:01 | history | answered | Harper - Reinstate Monica | CC BY-SA 3.0 |