Log in
Register
Home
Forums
New posts
Search forums
What's new
New posts
New profile posts
Latest activity
News
Members
Current visitors
New profile posts
Search profile posts
Features
Log in
Register
Search
Search titles only
By:
Search titles only
By:
New posts
Search forums
Menu
Install the app
Install
Reply to thread
Home
Forums
Low Earth Orbit
Lighting & Electrical
Correct feeder cable for distro
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Message
<blockquote data-quote="Paul Johnson" data-source="post: 217848" data-attributes="member: 2643"><p>The two cores tend to cancel the magnetic properties, but the heating effect should not be underestimated. The cable resistance is a key factor, but so of course is current. Coiling cables adds inductance components. Cables have resistance. They need cooling. If the temperature rises, this changes the electrical properties and it starts to run away. A domestic extension reel highly loaded near to its capacity can turn it into a solid lump of plastic, unable to be unwound. Very common. I’d not want to do this with high capacity cable. Figure 8 and loose laying with space between turns reduces the inductive component so the air can enable cooling. The thermal results just need managing.</p></blockquote><p></p>
[QUOTE="Paul Johnson, post: 217848, member: 2643"] The two cores tend to cancel the magnetic properties, but the heating effect should not be underestimated. The cable resistance is a key factor, but so of course is current. Coiling cables adds inductance components. Cables have resistance. They need cooling. If the temperature rises, this changes the electrical properties and it starts to run away. A domestic extension reel highly loaded near to its capacity can turn it into a solid lump of plastic, unable to be unwound. Very common. I’d not want to do this with high capacity cable. Figure 8 and loose laying with space between turns reduces the inductive component so the air can enable cooling. The thermal results just need managing. [/QUOTE]
Insert quotes…
Verification
Post reply
Home
Forums
Low Earth Orbit
Lighting & Electrical
Correct feeder cable for distro
Top
Bottom
Sign-up
or
log in
to join the discussion today!