Communities

Writing
Writing
Codidact Meta
Codidact Meta
The Great Outdoors
The Great Outdoors
Photography & Video
Photography & Video
Scientific Speculation
Scientific Speculation
Cooking
Cooking
Electrical Engineering
Electrical Engineering
Judaism
Judaism
Languages & Linguistics
Languages & Linguistics
Software Development
Software Development
Mathematics
Mathematics
Christianity
Christianity
Code Golf
Code Golf
Music
Music
Physics
Physics
Linux Systems
Linux Systems
Power Users
Power Users
Tabletop RPGs
Tabletop RPGs
Notifications
Mark all as read
Q&A
Post

Would we need Alternating Current if superconducting wires existed?

+4
−2

The major advantage of Alternating Current is that it can be transmitted to large distances without significant losses, which is not possible in Direct Current.

Had economical superconducting wires existed, DC could be transmitted to any distance without any loss, and DC is much safer compared to AC.

So, I want to know, do we need AC if long distance transmission is no longer a problem because of superconducting wires?

Would DC be better in that case, or we would still need AC?

Why does this post require moderator attention?
You might want to add some details to your flag.
Why should this post be closed?

1 comment thread

General comments (3 comments)

Comments on Would we need Alternating Current if superconducting wires existed?

General comments
Lundin‭ wrote over 1 year ago:

"DC is much safer compared to AC" This probably comes from the idea that if you get 230VAC through your muscles, they would repeatedly cramp and make it impossible to move away from the point of contact. Not sure if it's true but I've heard it mentioned many times. At any rate, that such doesn't matter in the slightest in case of overhead power lines, since those have far higher voltages and currents.

Lundin‭ wrote over 1 year ago:

At any rate you only need some 10-20mA across your heart to risk a heart stop. DC or AC is irrelevant there. The average 230VAC connector in your home is fused to 15A and can deliver quite a current until the ground fault breaker goes.

Ezekiel‭ wrote over 1 year ago:

This article explains the physiological effects of AC and DC.

Skipping 1 deleted comment.

This community is part of the Codidact network. We have other communities too — take a look!

You can also join us in chat!

Want to advertise this community? Use our templates!

Like what we're doing? Support us! Donate