So effectively 14-104(2) drives the user to the 60 deg C column of table 2 for thin wires, AWG 10 and smaller, unless an amendment applies (like a fixed resistance heating load, which overrides 14-104 in 62-114).
May I ask: Why not do we first check the breaker In(A)-Rating Current, 1) Choosing the In=20A breaker based on the conclusion 16.25A, then 2) Checking Table 2 based on the breaker In[20A] We got the same conclusion, also under the Codes 8-104(6) and 14-104(2) required.
Still in school for electrical so excuse the potentially stupid question, but why is your load measured in amps and not ohms, I thought a load was your resistance, I feel like I’m missing something here
It can kind of be either. A load will have a current vale, because there is a path for current to flow. The path will have an ohmic value. I prefer to think of Load as current.
in the middle of the video you mentioned how the overcurrent rating was less than the allowable amperage allowance for the given conductor size so you would need to upsize the breaker rating. Doesn't it make more sense to have your breaker rating to be less so that it will trip before the load current goes beyond the conductor allowance????????
The code for this is showing you the most "unsafe safe way" a smaller o/c device will be safer but we are finding the min amps of wire and MAX o/c device.
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So helpful! Thank you!
Nice work. Straight to the point, this is the exact same as the NEC except we switched to 125% of continuous loads vs the .8
I could continuously watch this
Thanks sir 🙏
So effectively 14-104(2) drives the user to the 60 deg C column of table 2 for thin wires, AWG 10 and smaller, unless an amendment applies (like a fixed resistance heating load, which overrides 14-104 in 62-114).
Only if the equipment is not marked with a temperature. Lots of equipment is marked.
May I ask:
Why not do we first check the breaker In(A)-Rating Current,
1) Choosing the In=20A breaker based on the conclusion 16.25A, then
2) Checking Table 2 based on the breaker In[20A]
We got the same conclusion, also under the Codes 8-104(6) and 14-104(2) required.
How can you write on a clear board like that, backwards? That feels like it would be difficult.
Still in school for electrical so excuse the potentially stupid question, but why is your load measured in amps and not ohms, I thought a load was your resistance, I feel like I’m missing something here
It can kind of be either. A load will have a current vale, because there is a path for current to flow. The path will have an ohmic value.
I prefer to think of Load as current.
Awesome Video Zack!
in the middle of the video you mentioned how the overcurrent rating was less than the allowable amperage allowance for the given conductor size so you would need to upsize the breaker rating. Doesn't it make more sense to have your breaker rating to be less so that it will trip before the load current goes beyond the conductor allowance????????
The code for this is showing you the most "unsafe safe way" a smaller o/c device will be safer but we are finding the min amps of wire and MAX o/c device.