General
Degree of protection	with green/yellow protective conductor
Conductor type	round solid
Conductor material	Copper
Insulating material	PVC
Outer sheath	PVC black
Nominal voltage	0,6/1 kV
Test voltage	4 kV
Operation temperature	+70 °C
Installation temperature range	-5 to +70 °C
Temperature range after installation	-30 to +70 °C
Bend radius single-core	15 x cable diameter
Bending radius multi-core	12 x cable diameter
Flame retardancy	VDE 0472 Part 804, test type B

The VDE-Kabel NYY-J 4X4 RE is a fixed-installed power and control cable designed for use outdoors, in the ground, in indoor spaces, and in cable ducts. It is particularly suitable for applications requiring high mechanical and chemical resistance as well as secure power transmission. The cable features a protective conductor (designation J), which enhances electrical safety during operation and ensures compliance with VDE standards. The designation RE indicates a round single-strand copper conductor, manufactured according to VDE 0295, offering high mechanical strength and minimal deformation under bending.

Applications
This cable is suitable for use in industry, construction, and energy supply, where permanent and reliable installation in the ground or in cable ducts is required. It can be used both outdoors and in enclosed spaces, as it is resistant to moisture, UV radiation, and mechanical stress. Use in cable ducts enables structured and orderly cable routing in buildings and installations.

Functions and Features in Detail
The conductor is made of bare copper, manufactured according to VDE 0295, ensuring high electrical conductivity and long service life. The conductors are insulated with PVC insulation, providing good electrical insulation and mechanical stability. Conductor identification follows VDE 0293-308, with standardized color coding for 1 to 5 conductors. The protective conductor is marked green-yellow, enabling clear identification during installation. A filler layer ensures even distribution of the conductors and prevents twisting or deformation of the cable.

Technology Explained Simply
The cable features a black PVC outer sheath, offering high resistance to external influences such as moisture, mechanical stress, and UV radiation. The rated voltage is 0.6/1 kV, making it suitable for use in low-voltage installations. The test voltage of 4 kV ensures electrical safety under extreme conditions. The maximum operating temperature is +70 °C, with the cable tolerating temperatures from -5 °C to +70 °C during installation and from -30 °C to +70 °C after installation. The bending radius is 15 times the cable diameter for single-core conductors and 12 times for multi-core conductors, enabling flexible installation. Flame retardancy complies with VDE 0472 Part 804, Test Method B (equivalent to IEC 332-1), meaning the cable does not contribute to rapid flame spread in case of fire.

Compatibility and Accessories
The cable is compatible with standard installation techniques for underground and indoor installations. It can be connected using appropriate cable lugs, junction boxes, and other connection elements designed for low-voltage installations. The use of cable reels facilitates installation over long distances, with underground installation requiring a minimum depth according to applicable regulations.

Installation and Mounting
Installation requires compliance with current regulations for electrical installations. The cable is designed for fixed installation and should not be moved or subjected to load after installation. Underground installation requires sufficient depth to avoid mechanical damage. Bending radii must be observed to prevent damage to the conductors. Conductors are connected using suitable connection elements designed for the respective conductor cross-section.

Operational Advantages
The cable offers high reliability and long service life due to its robust construction and use of high-quality materials. The PVC insulation and outer sheath protect the cable from environmental influences, ensuring long life and low maintenance costs. The flame-retardant design enhances safety in case of fire, as the cable does not contribute to flame spread. Clear conductor identification simplifies installation and maintenance.