Strip light issue

[EFLImpudence]

Except it is not a parallel; it is something completely different.

 

[davelx]

It's clearly different to a situation where an overpowered FCU or MCB can power a lower powered device e.g. lights on a 32Amp breaker.
That's the parallel I was trying to draw.

There is no comparison - totally different devices. FCUs and MCBs are passive devices i.e.they are not power supplies. They are just a combination of a switch and an overload and/or fault protection device. Under normal operation they are no different from a length of cable. Their current ratings refer to the maximum current they can handle under normal operation. The actual current that flows is a function of the supply voltage and the load being supplied.

 

[DetlefSchmitz]

Except it is not a parallel; it is something completely different.

https://learn.sparkfun.com/tutorials/voltage-current-resistance-and-ohms-law/all#:~:text=The three basic principles for,flow of charge (current).

This site seems more confusing than helpful. For example, the statement:
"Voltage is the difference in charge between two points."
They are not even in the same units, let alone whether they give a good picture.

 

[EFLImpudence]

It was only the first that came up. I will delete it.

Substitute a better one if you have it.

 

[DetlefSchmitz]

It was only the first that came up.

The idea to help people build a picture of electricity is a good one. Many of the issues that arise on forums such as this are caused by not having that all important image in their mind.