Каждый электроприемник, требующий по условиям электробезопасности постоянного контроля изоляции, запитывается от своей группы распределительного шкафа.
Все металлические части, нормально не находящиеся под напряжением, которые могут попасть под напряжение вследствие нарушения изоляции, должны быть надежно заземлены в соответствии с требованиями ПУЭ.
Заземляющее устройство должно быть проверено на сопротивление растекания тока, величина которого не должна превышать 4,0 Ом при удельном сопротивлении грунта менее 100 Ом.
Для временного заземляющего устройства резервуара следует в первую очередь использовать естественные заземлители, для чего необходимо минимум в двух местах оголить арматуру ж/б фундамента и подсоединить к ней корпус резервуара стальной полосой 4х40 мм или круглую сталь диаметром не менее 10мм. Если в результате измерения сопротивление естественных заземлителей окажется выше 4,0 Ом, то необходимо на расстоянии 1 м от наружной стенки фундамента на глубине 0,5 м проложить стальную полосу 4х40 мм или круглую сталь диаметром не менее 10мм
Each èlektropriemnik, which requires ongoing monitoring under the terms of the electrical insulation, powered by its switchgear group. All metal parts are not normally energized, which may be under strain due to the insulation must be firmly grounded in accordance to requirements of PUE. Earthing device must be tested for resistance spreading current, the value of which does not exceed 4.0 ohm at nominal resistance of soil less than 100 ohms. For temporary earthing device tank should primarily use natural grounding conductors, which requires at least two places bare rebar reinforced concrete basement and attached to her shell steel strip 4х40 mm or round steel diameter not less than 10 mm. If as a result of natural resistance measurement earthing to be above 4.0 Ohms, it must be at a distance of 1 m from the outer wall foundations at a depth of 0.5 m pave steel strip 4х40 mm or round steel diameter not less than 10 mm
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Each power-consuming equipment, required under the terms of electrical permanent insulation monitoring, powered from its group distribution cabinet.
All metal parts are normally not under voltage, which can get under stress due to insulation faults, must be firmly grounded in accordance with the requirements of the SAE.
Grounding device must be tested for resistance to current spreading, the value of which must not exceed 4.0 ohms at soil resistivity less than 100 ohms.
for the temporary grounding device of the tank should first use natural grounding, which requires at least two places, bare rebar w / w of the foundation and connect it to the steel strip tank housing 4x40 mm or round steel with a diameter of at least 10mm. If the result of the measurement of earth resistance is higher than the natural 4.0 ohms, it is necessary at a distance of 1 m from the outer wall of the basement at a depth of 0.5 m lay the steel strip 4x40 mm or round steel with a diameter of at least 10mm
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every электроприемник requiring under permanent control of the electrical safety isolation, запитывается from its group distribution cabinet.all the metal parts are normally not energized, which may be under pressure because of exclusion, should be firmly grounded in accordance with the requirements of пуэ.заземляющее device must be tested for resistance растекания current, the magnitude of which should not exceed 4.0 ohm in the specific resistance is less than 100 ohms.device for the temporary заземляющего reservoir should be the first to use the natural заземлители, which requires at least two places оголить rebar / b foundation and connect to the reservoir 4х40 mm steel strip or a round steel with diameter of not less than 10mm. if, as a result of measuring the resistance of заземлителей is above 4.0 ohm, to be at a distance of 1 m from the outer wall of the foundation at a depth of 0.5 m pave steel strip 4х40 mm or a round steel with diameter of not less than 10mm
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