Is the amp value on 310.16 based on RMS or peak values?

[Genepires]

Rather embarrassed to not know the answer but I saw something on a reel that made we question something I thought I knew.
The value given on our clamp meter is RMS much like voltage is RMS. I think I assumed it was peak amps.
But is the values on table 310.16 RMS or peak amps? Couldn’t find language regarding that on the table but I hope it is based on rms amps.

87K views · 1.4K reactions | If the maximum current on a circuit is 70 amps, the ammeter will read _____ 𝐈❤️𝐄𝐥𝐞𝐜𝐭𝐫𝐢𝐜𝐢𝐭𝐲 #electricalengineering #electrician #education #review | Philippine Electrical Code

If the maximum current on a circuit is 70 amps, the ammeter will read _____ 𝐈❤️𝐄𝐥𝐞𝐜𝐭𝐫𝐢𝐜𝐢𝐭𝐲 #electricalengineering #electrician #education #review

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[Jraef]

Everything in the NEC regarding AC is RMS.

 

[winnie]

Rather embarrassed to not know the answer but I saw something on a reel that made we question something I thought I knew.
The value given on our clamp meter is RMS much like voltage is RMS. I think I assumed it was peak amps.
But is the values on table 310.16 RMS or peak amps? Couldn’t find language regarding that on the table but I hope it is based on rms amps.

87K views · 1.4K reactions | If the maximum current on a circuit is 70 amps, the ammeter will read _____ 𝐈❤️𝐄𝐥𝐞𝐜𝐭𝐫𝐢𝐜𝐢𝐭𝐲 #electricalengineering #electrician #education #review | Philippine Electrical Code

If the maximum current on a circuit is 70 amps, the ammeter will read _____ 𝐈❤️𝐄𝐥𝐞𝐜𝐭𝐫𝐢𝐜𝐢𝐭𝐲 #electricalengineering #electrician #education #review

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They are based on RMS amps.

The rational is that the current limits are set by resistive heating of the conductors, and RMS current is the number that gives the same resistive heating for different waveforms.

-Jonathan

 

[ptonsparky]

What's an ammeter....

eta: why did I always assume ...p...
Cheesh

 

[Genepires]

They are based on RMS amps.

The rational is that the current limits are set by resistive heating of the conductors, and RMS current is the number that gives the same resistive heating for different waveforms.

-Jonathan

Thanks. That makes a ton of sense.

 

[Genepires]

What's an ammeter?

I assume your question is from the video in the link?

 

[busman]

Yes, all AC voltages and amperages are RMS in the NEC. However, for voltage effects such as shock, it is important to think about both peak and RMS voltage (one man's opinion).

Mark