General
Nominal voltage	0,6/1 kV
Test voltage	4 kV
Installation temperature range	-5 °C
Temperature range after installation	-30 °C
Operation temperature	+70 °C
Bend radius single-core	15 x cable diameter
Bending radius multi-core	12 x cable diameter
Flame retardancy	according to VDE 0472 Part 804, test type B
Conductor	Copper, bare, sector-shaped stranded (SM)
Wire insulation	PVC
Conductor marking	according to VDE 0293-308
Outer sheath	PVC black

The cable NYY-J 4X120 SM from VDE-Kabel is a fixed-installed power and control cable designed for use outdoors, in the ground, indoors, and in cable ducts. It is used for the transmission of electrical power and control signals in industrial, commercial, and municipal installations. The designation NYY-J indicates a cable with PVC insulation and sheath, where the addition J stands for the integrated green-yellow protective conductor core. The type designation SM refers to a sector-shaped, multi-strand construction of the copper conductors, which ensures optimal current flow and mechanical stability, especially for larger cross-sections such as 120 mm².

Applications
This cable is suitable for a wide range of applications in the field of electrical power supply, particularly in building and industrial technology. It can be directly buried in the ground, making it especially suitable for outdoor installations, street lighting, garden and landscape lighting, and power supply to outdoor facilities. It can also be used indoors, for example in production halls or administrative buildings, in cable ducts or open installation. Outdoor use is possible due to the black-colored PVC sheath and robust construction, provided environmental conditions remain within the specified temperature limits.

Functions and Equipment in Detail
The conductor is made of bare copper, manufactured according to VDE 0295, and is constructed in a sector-shaped, multi-strand configuration (SM). This design ensures even current distribution and reduces mechanical stresses during installation. The cores are insulated with PVC, with core identification according to VDE 0293-308. For up to five cores, identification is done by color, with the green-yellow core designated as the protective conductor (J). The filler layer ensures stable cable shape, while the outer sheath made of black PVC enhances mechanical and chemical resistance.

Technology Explained Simply
The rated voltage is 0.6/1 kV, meaning the cable is designed for operating voltages up to 1 kV with a phase voltage of 0.6 kV. The test voltage of 4 kV serves quality assurance and ensures the cable remains stable even under increased electrical stress. The maximum operating temperature is +70 °C, with cable installation permitted at temperatures from -5 °C. After installation, the cable can be operated at temperatures from -30 °C to +70 °C. The bending radius is 15 times the cable diameter for single-core conductors and 12 times for multi-core cables, enabling flexible installation without damaging the conductors. Flame retardancy according to VDE 0472 Part 804, test method B (equivalent to IEC 332-1), ensures the cable does not propagate live flame during fire exposure, which is important for safety in buildings and installations.

Compatibility and Accessories
The cable is designed for use in electrical installations executed according to current standards for power and control cables. It is compatible with standard cable lugs, cable glands, and other connection elements designed for PVC insulation and copper conductors. The use of specialized tools for cable processing, such as cable cutters or wire strippers, is required to cleanly remove the insulation and connect the conductors. There are no specific accessory items directly associated with this cable type, as it is a standard cable for general applications.

Installation and Mounting
Installation is performed by fixed laying, which can be done in the ground, in cable ducts, or indoors. Underground installation requires sufficient depth and protective measures against mechanical damage, for example, using a protective sleeve or protective layer. Bending radii must be observed to avoid damaging the conductors. Cable ends are connected using appropriate connection elements, taking into account the electrical and mechanical requirements of the respective installation. Installation should be carried out considering environmental conditions and maximum operating temperature.

Advantages in Operation
The cable offers high mechanical strength and chemical resistance, making it suitable for use in various environments. The integrated green-yellow protective conductor (J) meets electrical safety requirements and enables proper earthing. The PVC insulation and outer sheath provide good insulation and protection against external influences. Flame retardancy increases safety in buildings and installations. The sector-shaped, multi-strand construction of the conductors (SM) ensures even current distribution and reduces heat generation under high loads.