What fuse to mount in the electrical switchboard? circuit breaker over current

See how to choose a circuit breaker above the current one, to be safe, what to pay attention to, which B C D characteristics should be used.
Green guide. :)
I hope that the way presented is fully understandable.
If you have comments, questions, good advice, I invite you to comment.
The formula given for calculating the power is not entirely true, but very understandable, even for a layman, i.e. Current x Voltage = Power, to be able to find out what the value is.
See what circuit breaker above the current one will be the best for a given electrical circuit. By the way, I discuss the characteristics of B C D. I invite you.
ATTENTION: ANY ELECTRICAL WORK SHOULD CONDUCT ELECTRICIANS WITH LEGAL AUTHORITY, FILM ONLY FOR SHOWING PURPOSES. CARRYING OUT WORK BY INDEPENDENTLY, WITHOUT EXPERIENCE, MAY RESULT IN SHOCK OR DEATH! Works You always do on your own RISK!
I invite you to subscribe to the ForumWiedzy.pl channel on RUclips and Facebook to stay up to date.
JOIN FORUMWIEDZY:
• RUclips: www.youtube.com...
• Facebook: / forumwiedzypl
• Twitter: / forumwiedzy
• Instagram: / forumwiedzy.pl
• Google+: plus.google.co...
• Website Blog: www.forumwiedzy.pl
Join ForumWiedzy.pl on social media and stay up to date!