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Все вопросы
- In circuits with any voltage should measured current? #161
- In what electroinstallations when using the voltage tester it is necessary to put on dielectric gloves? #162
- What posters from the listed below refer to the warning? #163
- What is the frequency of inspection of earthing devices with selective opening of a ground? #164
- What consumers refer to the consumers of the second category? #165
- In which case, the certificate of testing the knowledge of norms and rules of work in electrical installations should be replaced? #166
- What voltage should be used to power the portable (manual) of fixtures used in premises with the increased danger? #167
- How is metering during the repair of means of measurement with the running of the process equipment? #168
- What is meant by a voltage step? #169
- What objects are ordinary objects according to the degree of danger of defeat by a lightning? #170