Технические характеристики кабеля КГТП

Для подключения передвижного оборудования к электросетям и передвижным источникам электроэнергии используется гибкий силовой кабель КГТП с медными жилами. Подсоединение машин к источнику питания при помощи данного проводника выполняется на номинальное переменное напряжение не более 660 В с частотой до 400 герц или на постоянное напряжение, достигающие 1000 Вт.

Провод изготавливается в соответствии с требованиями ГОСТ 24334-80. Расшифровка названия этого кабельного продукта: КГ – кабель гибкий, ТП – изоляция жил и наружная оболочка изготовлены из термоэластопластов.

Устройство провода

КГТП бывает одножильным и многожильным. Каждая жила состоит из большого количества тонких медных проволок. Покрытие для жил изготавливается из стирольных термоэластопластов, при этом изоляция каждой из них имеет отличительную расцветку, например, жила заземления покрыта желто-зеленой изоляцией.

Токопроводящие жилы двух-, трех- или четырехжильного провода скручиваются между собой. А у пятижильного кабеля они скручиваются вокруг шланговой резины или корделя, изготовленного из термоэластопласта. Чтобы изоляция легко отделялась от наружной оболочки, в многожильных проводниках используется тальк в качестве разделительного слоя. В одножильных проводах жила покрывается полиэтилентерефталатной плёнкой. Оболочка КГТП производится из стиральных термоэластопластов, цвет оболочки чёрный.

При изготовлении одножильного кабеля изоляция и наружное покрытие могут заменяться специальной изоляционно-защитной оболочкой, сделанной из термоэластопласта. Многожильные провода бывают одинакового сечения или разного. Во втором случае нулевой провод или заземление имеет меньший диаметр, чем остальные жилы.

Технические характеристики

Популярность кабеля КГТП объясняется его превосходными техническими характеристиками и возможностью эксплуатации в различных климатических поясах. К преимуществам этого проводника можно отнести:

  1. Высокие показатели устойчивости к ультрафиолетовым лучам. Это означает, что проводка может использоваться в течение длительного времени в тех местах, где она подвержена воздействию солнца.
  2. Компактность. КГТП отличается малогабаритностью и небольшим весом, что упрощает процесс его прокладки.
  3. Устойчивость к воздействию низких и высоких температур, а также к температурным перепадам. Провод может прокладываться и использоваться при температуре от -60 до +50 градусов по Цельсию, что дает возможность эксплуатировать его в условиях как очень холодного, так и очень жаркого климата.
  4. Устойчивость к повышенной влажности воздуха. КГТП может использоваться при относительной влажности воздуха до 98% при температуре внешней среды до +35.
  5. Термостойкость. Максимально допустимая температура токопроводящих жил при длительной эксплуатации – до +75 градусов.
  6. Высокая гибкость. При производстве кабеля данной марки используются жилы 5 класса гибкости. Минимальный радиус изгиба при монтаже составляет 8 наружных диаметров. Максимально допустимое растягивающее усилие на кабель составляет 19,6 Н (2,0 кгс) на 2 мм² общего сечения всех токопроводящих жил.

Срок службы КГТП составляет 4 года с момента изготовления, гарантийный срок эксплуатации – 6 месяцев, но не позже 12 месяцев с момента производства. Запрещена эксплуатация кабеля в смотанном виде, а также под воздействием направленных нагрузок.

Если провод подключается к подвижной машине, то его следует поместить в специальное устройство укладки кабеля. Оно обеспечивает минимально допустимый радиус изгиба и предотвращает абразивный износ проводника. Строительная длина КГТП с сечением основных жил до 35 мм² составляет 150 м и более, а с течением 50-120 мм² — не менее 125 м.

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