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Все вопросы
- Are classified as premises in respect of danger of defeat of people by an electric current? #81
- How neutral should work in electric network with voltage of 10 kV? #82
- What the staff refers to administrative and technical? #83
- What are the age limits for assignment of III group of electrical safety? #84
- Who is eligible to serve electrical installations up to 1000 V? #85
- Which must conform to the date of verification of a current transformer built into the power equipment? #86
- In some circuits is the voltage measurement? #87
- When are the extraordinary resistance measurements of lightning-protection devices? #88
- What color should be painted openly laid the ground conductors? #89
- What kind of background should have a warning sign "Caution! Voltage" which is applied through a stencil on the concrete line support? #90