How to convert a valid Bitrix site from 1251 to utf-8?

Question

1C-Bitrix

and I have multisite
I want to convert the site to utf -8, I don’t know if it’s a good idea yet, but some modules under 1251 don’t do

Answer 1

Hello.
Converting a site from cp1251 to UTF8
Be sure to do this operation on a copy and only after it works on a copy do it on the main one.
When you do it on the main, close access to the site for technical work.