Power cables, which are the main means of providing facilities with electricity, are laid in a trench method. In this case, there is a high probability of accidental damage to the lines. To protect the cables from unwanted mechanical influences, today a special PZK plate is used.
Appointment
Plate closures of electrical conductors are ubiquitous relatively recently. Such tools have replaced another practical method of cable protection in the form of a building brick coating.
PZK plate is designed for insulation of electric power lines that operate under voltage from 0.4 to 35 kW. Among other things, such a convenient mobile tool is suitable for coating pipelines of small diameter, elements of gas networks, the operation of which requires protection from all kinds of damage.
Execution options
Modern PZK plates for cable protection are distinguished by a special variety of colors. However, the decisive difference between the individual versions is the width parameter, despite the fact that the length of all products is identical and amounts to 48 cm. The slam-shut plate can correspond to the sizes: 48 x 24, 48 x 36, 48 x 48.
Benefits
What are the benefits of a slam-shut cable plate when laying power cables in the ground? The following deserves attention:
- One slab replaces a range of bricks.
- Each unit has a small weight of not more than 1.5 kg.
- Slab PZK is offered to consumers in a compact mobile package, which simplifies the movement of a significant amount of material to the installation site.
- The use of the insulator significantly reduces the time required to shelter cable lines. During installation, there is no need to attract special equipment.
- Thanks to the simplicity of material movement, savings in transportation costs are felt.
- The presence of inscriptions warning of the danger of electric shock ensures the safety of work on the site and helps to recognize power cable lines.
- Due to the numerous colors, it is possible to conveniently indicate the conductors belonging to certain systems.
- Such insulators are suitable for repeated use and suggest the possibility of further disposal.
- Slabs of PZK are of absolutely no interest to attackers who are interested in stealing elements of underground cable lines.
- Insulation products are not exposed to aggressive environmental factors. The service life is from 4 to 5 decades.
Separately, it is worth paying attention to the high strength indicators of cable closure plates, extreme resistance to mechanical stresses of various properties. The indicated qualities favorably distinguish such insulation against the background of the same ceramic brick, which in the past was universally used to protect the power lines laid in the ground.