Removing a cable with a jokari
We will learn how to check a section of electrical lead wire
Jerome will take the caliper and measure the diameter of the wire
Jerome asks if it is the naked conductor that should be measured?
The thickness of the insulator, and its nature, will determine the maximum tension that the electric wire can carry
Jérôme e measured 1.8 mm in diameter for the thread
To convert the diameter to section: pi * radius² or pi * D² / 4
With pi * D² / 4 we found: 2.54 mm², or 2.5 mm²!
Jeff will measure the second thread, apparently finer ...
1.4 mm diameter
1.4² * ft / 4 = 1.52 mm², so we are of course on 1.5 mm²!
Jeff asks how to choose a section? Guillaume answers that we will see that an abacus is restrictive, we will learn how to calculate section but also voltage drop!