Wire gauge and the skin effect (3 - Electricity Distribution)

[@douglaschamley5341]

This is a really good series with high quality information. I would just like to add an important detail to wire selection which these days has become more important due to more material choices for insulation. Insulation choice has significant effects on not just the safe voltage capacity but also the current capacity, operating temperature and therefore Gauge choice. The charts referenced are for an assumed thickness and grade/material of insulation. This is due to two effects: 1: cooling of the wire. some insulators (plastics/rubbers) are able to conduct heat away from the conducting core faster and therefore for the same energy dissipation as heat in the wire the wire will raise in temperature less. 2: safe operating temperature without melting or degrading. some insulators are able to operate at 50-60C for long periods without degrading while others will break down, go brittle and crack prematurely. Also peak temperature resistance due to melting point but really you shouldn't be operating anywhere near that so degradation is the main design driver Which is all complicated thermodynamics to predict which are a pain to calculate hence the need for charts bottom line take away, in a pinch you can often squeeze more amps into the same gauge wire by picking a less standard insulator such as PTFE

[@TheSecrecyOfFrequency]

Are the properties of a DC Pulsing Circuit the same as an AC Circuit given the same frequencies? This is the first of your video's I have seen... and as an intermediate knowledge learner its the best technical quality video I have seen by topic. Love it, thankyou.

[@gAmingtriCks234]

Great series!

[@estebanrobertorochebernal7164]

Your videos are great. Thanks a lot.

[@SuperFredAZ]

I am finding that you can find copper plated steel wire masquerading as copper. At first glance you think you have copper, and the resistivity is much higher!

[@rizkykumara6672]

🫡

[@VEC7ORlt]

Gauge is such a stupid thing... Crossection, resistance, diameter - all of these make sense and relate to the physical parameters, gauge on the other hand, yeah no.