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Все вопросы
- In what electroinstallations apply dielectric galoshes? #171
- What is a protective helmet? #172
- When an inspection is carried out and inspection of lightning protection devices? #173
- Which of the following responsibilities responsible for the electrical equipment? #174
- What instruction must pass the seconded staff on arrival to the place of his business trips? #175
- How often should be carried out inspection and health check of emergency lighting? #176
- What is electrical pliers? #177
- As indicated by the zero working (neutral) conductors? #178
- What kind of background should have a warning sign "Caution! Voltage", which is fixed on the outer door of transformers? #179
- What installations are subject to the requirements of electrical installation Regulations? #180