Test of circuit breakers with a current of 1.45 of the nominal. Who is better?

All of us, when buying any product, are interested in how real parameters correspond to the declared characteristics.
This is especially important when we choose devices designed to protect our electrical networks.

How to connect wires. Unusual way

This method of connecting wires will be of interest to both amateurs and professionals. In terms of the quality of the connection, it is similar to the connection with a sleeve. I have been using it for over 15 years. During this time - no complaints from customers.

Heat-shrink tubing. Installation subtleties.

It would seem ... heat shrink tubing for insulating cable / wire connections is no longer something unusual.
Someone who, and electricians must definitely know how to use it. Nevertheless, the other day I watched the work of the RES brigade and realized: “The instructions are not for our brother.” They screwed up like this...