General
Nominal voltage	0,6/1 kV
Test voltage	4 kV
Operation temperature	+70 °C
Installation temperature range	-5 to +50 °C
Temperature range after installation	-30 to +70 °C
Bending radius	12 x cable diameter
Flame retardancy	According to VDE 0472 T. 804 test type B (IEC 332-1)
Conductor type	Aluminium, sector-shaped solid (SE)
Wire insulation	PVC
Conductor marking	according to VDE 0293-308
Outer sheath	PVC black

The cable of type designation NAYY-J 4X 70 SE from VDE-Kabel is an aluminium earth cable designed for use as power and control cable in outdoor applications, in the ground, in power plants, industrial and switchgear installations, as well as in local networks. It is also suitable for use in water, in dry and damp indoor areas, and in cable ducts, provided no mechanical damage is expected. The cable features a protective conductor (designation J) and is therefore suitable for use in electrical installations with protective conductor routing. The designation SE indicates a sector-shaped single-strand aluminium conductor, manufactured in accordance with VDE 0295.

Applications
This cable is designed for a wide range of applications in the field of power and control technology. It is particularly used in underground installations, where it is protected against external influences such as moisture, ground load, and weather. Use in water and in cable ducts is also intended, provided mechanical stress is limited. In industrial plants and power stations, it is used for power transmission and control, with the rated voltage of 0.6/1 kV defining the application limits. Use in local networks is permitted, provided no mechanical damage occurs.

Functions and Equipment in Detail
The conductor is made of aluminium and is sector-shaped single-strand (SE), enabling optimal space utilisation within the cable cross-section. The core insulation is made of PVC, providing good electrical insulation and mechanical stability. Core identification follows VDE 0293-308, ensuring unambiguous identification of individual cores. The filler layer ensures even distribution of the cores within the cable and prevents displacement. The outer sheath is made of black PVC, offering high resistance to UV radiation and atmospheric influences. The designation J indicates that the cable includes a protective conductor, which is necessary for electrical safety in the installation.

Technology Explained Simply
The rated voltage of 0.6/1 kV defines the maximum voltage the cable can safely transmit. The test voltage of 4 kV serves as a safety margin and is applied during quality testing of the cable. The operating temperature is a maximum of +70 °C, describing the thermal load capacity of the cable during operation. During installation, the temperature must be between -5 °C and +50 °C; after installation, the permissible temperature range is -30 °C to +70 °C. The bending radius is 12 times the cable diameter, which must be considered during installation to avoid damaging the cable. Flame retardancy according to VDE 0472 Part 804, Test Method B (equivalent to IEC 332-1), ensures that the cable does not act as a flame spreader in case of fire, thus limiting the fire load.

Compatibility and Accessories
The cable is designed for use in electrical installations requiring a rated voltage of 0.6/1 kV. It is compatible with standard installation methods for underground cables, including installation in cable ducts and in the ground. Use in water is possible, provided mechanical loads are low. Installation must comply with applicable regulations and standards, particularly VDE 0295 for conductors and VDE 0293-308 for core identification.

Installation and Mounting
Mounting of the cable requires adherence to the specified bending radius of 12 times the cable diameter to avoid cracks or breaks in the conductor. Installation takes place in the ground, in cable ducts, or outdoors, with environmental conditions such as temperature and humidity to be considered. Installation in water is possible, but only if no mechanical damage is expected. Installation must be carried out in accordance with applicable standards and regulations.

Advantages in Operation
The cable offers high electrical conductivity due to the aluminium conductor and good mechanical stability due to the PVC outer sheath. Flame retardancy according to VDE 0472 Part 804, Test Method B, provides increased safety in case of fire. The use of PVC as insulation and outer sheath material ensures high resistance to atmospheric influences and moisture. The sector-shaped design of the conductor enables a compact form and efficient space utilisation within the cable cross-section. Compliance with VDE standards for conductors and core identification ensures unambiguous identification and safe use in electrical installations.

Protection Class and Environmental Conditions
The cable is designed for use in various environments, including in the ground, outdoors, in water, and in indoor areas. The temperature resistance of -30 °C to +70 °C after installation allows use in regions with different climatic conditions. Installation must take place at temperatures between -5 °C and +50 °C. The PVC insulation and outer sheath provide protection against moisture, UV radiation, and atmospheric influences. Flame retardancy according to VDE 0472 Part 804, Test Method B (IEC 332-1), ensures limited fire load and prevents flame propagation along the cable.