TRANSITION - From Conventual Wiring to Digital Wiring

[mtnelect]

With the advent of GFCI/AFCO beakers and surge protectors, it seems to be that we are entering into the "Digital Age".
Appliances are now controlled by circuit boards, and other digital devices.
Everything is digital that is coming to market, which is having a confrontation with old school wiring.
The old methods sometimes don't work, like harmonics creating increased load on the neutrals.

 

[ActionDave]

The old breakers work fine, and GFCI protection worked fine. AFCIs have been a menace since they came into the code. GFCI protection got expanded to equipment that wasn't compatible with it based on a faulty installation of an A/C unit that should have never needed it if old school wiring methods would have been followed. Harmonics on neutrals haven't been a problem since like 2005.

 

[mtnelect]

The first digital code requirement would be feeding digital equipment with a dedicated circuit in a dedicated conduit. This would be similar to Cash Registes in retail stores.

 

[don_resqcapt19]

Digital power and wiring is what new Article 726, Class 4 Fault-Managed Power Systems, in the 2023 code is about.
Digital Electricity

​

 

[mtnelect]

Digital power and wiring is what new Article 726, Class 4 Fault-Managed Power Systems, in the 2023 code is about.
Digital Electricity

​

Thank you for the resource !
We are all entering a new age of "Digital Power" and now experiencing the ramifications of old school wiring.

 

[mayanees]

Digital power and wiring is what new Article 726, Class 4 Fault-Managed Power Systems, in the 2023 code is about.
Digital Electricity

​

I have the 2023 edition through NFPA Link and it's not there. Is it planned for the 2026 edition?

 

[zbang]

This would be similar to Cash Registes in retail stores.

And those aren't needed either, and haven't been for decades. The only reason would be to provide UPS power.

 

[wwhitney]

I have the 2023 edition through NFPA Link and it's not there. Is it planned for the 2026 edition?

That's surprising, as it's available in the free browser. What happens if you go to 725 and scroll to the end of the article, is the next article 726?

Cheers, Wayne

 

[mayanees]

That's surprising, as it's available in the free browser. What happens if you go to 725 and scroll to the end of the article, is the next article 726?

Cheers, Wayne

....nope

 

[wwhitney]

....nope

Sounds like a bug you should report. In the meantime, I confirmed that if you go to the free access it's still there.

Cheers, Wayne

 

[ActionDave]

Thank you for the resource !
We are all entering a new age of "Digital Power" and now experiencing the ramifications of old school wiring.

What ramifications?
What old school wiring?1950's BX, knob and tube, two wire Romex, TW insulation?

 

[mtnelect]

What ramifications?
What old school wiring?1950's BX, knob and tube, two wire Romex, TW insulation?

My comment was an extension of my proposal for a change to the 2023 NEC in regard to haphazard wiring of neutrals.

 

[don_resqcapt19]

I have the 2023 edition through NFPA Link and it's not there. Is it planned for the 2026 edition?
View attachment 2563973

No idea, it shows up in Link for me in the 2023.

 

[mayanees]

Sounds like a bug you should report. In the meantime, I confirmed that if you go to the free access it's still there.

Cheers, Wayne

Weird for sure! I pay the annual $99, but you've got it in the free version! They were perplexed, and said they'd email me when it was resolved.
Thanks for the heads up.

 

[mayanees]

Weird for sure! I pay the annual $99, but you've got it in the free version! They were perplexed, and said they'd email me when it was resolved.
Thanks for the heads up.

....fixed. I now have access to Article 726.

 

[petersonra]

With the advent of GFCI/AFCO beakers and surge protectors, it seems to be that we are entering into the "Digital Age".
Appliances are now controlled by circuit boards, and other digital devices.
Everything is digital that is coming to market, which is having a confrontation with old school wiring.
The old methods sometimes don't work, like harmonics creating increased load on the neutrals.

I think the chances of so called digital wiring becoming common are limited. For lighting it makes some sense, but for any kind of normal load like an over or a hair dryer, it just is not practical.

 

[hbiss]

With the advent of GFCI/AFCO beakers and surge protectors, it seems to be that we are entering into the "Digital Age".
Appliances are now controlled by circuit boards, and other digital devices.
Everything is digital that is coming to market, which is having a confrontation with old school wiring.
The old methods sometimes don't work, like harmonics creating increased load on the neutrals.

Back to the original post. Note that this is a completely different topic than "digital wiring" covered by Art 726.

We've had electronic equipment powered off our wiring for decades. I see no reason to believe that there needs to be any changes now just because electronics are becoming more prevalent in many consumer devices. Harmonics are no longer an issue as today's switching power supplies are designed to minimize them if necessary.

The "Digital Age" began 50 years ago. You are a bit late.

-Hal

 

[mtnelect]

Back to the original post. Note that this is a completely different topic than "digital wiring" covered by Art 726.

We've had electronic equipment powered off our wiring for decades. I see no reason to believe that there needs to be any changes now just because electronics are becoming more prevalent in many consumer devices. Harmonics are no longer an issue as today's switching power supplies are designed to minimize them if necessary.

The "Digital Age" began 50 years ago. You are a bit late.

-Hal

I am just following the directions of "Daikin" Installation Manual".

 

[HEYDOG]

I am just following the directions of "Daikin" Installation Manual".

I would like to know what Ground Fault Circuit Interrupter is designed for higher harmonics? Are you installing this piece of equipment? If so what G.F.C.I. will you be using?

 

[mtnelect]

I would like to know what Ground Fault Circuit Interrupter is designed for higher harmonics? Are you installing this piece of equipment? If so what G.F.C.I. will you be using?

See attachment.