With unlimited financial resources, we select a set of tools for an electrician. We do not regret money, we take what we want! It turned out 250,000 rubles. List of electrician's tools
Category: Tests, tests
Experiment Wire dropped to ground Step voltage
A visual experiment with a wire that fell to the ground. Let's measure the step voltage. Let's find out which step is the safest.
Which carving is best? Test. Soviet or modern?
Let's compare the thread of a Soviet bolt and a modern stud. This small test will show who is closer to the GOST standards.
Test for electricians. Find violations.
The inspector identified about a dozen violations. What exactly did he find? It will be interesting for electricians to play the role of an inspector and find safety violations. And at the same time check whether your opinion agrees with the opinion of the inspector.
How to find out the real capacity of the battery?
The capacity that battery manufacturers write is impressive: 6000mAh, 10000mAh, 20000mAh ... In fact, the real capacity of such batteries does not exceed 3500mAh. And this is the best!!! Cheap copies rarely have a capacity of more than 1000 mAh.
Test. What will happen to the circuit breaker after the short-circuit current
Each k.z. creates carbon deposits and scales on the contact area. The contact resistance of such a contact increases markedly and the machine will not be able to work even at rated currents - the contact will heat up and at best the thermal release will work, and at worst ... it can melt the case and even ignite it.