General
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	according to VDE 0472 Part 804, test type B (IEC 332-1)
Conductor type	Round solid (RE)
Conductor material	Copper, bare
Wire insulation	PVC
Outer sheath	PVC black
Conductor marking	according to VDE 0293-308

The cable NYY-J 4X2.5 RE from VDE-Kabel is a fixed installation power and control cable designed for use outdoors, in the ground, in indoor spaces, and in cable ducts. It is used for transmitting electrical power and control signals in various applications within electrical engineering, particularly in industry, construction, and outdoor installations. The cable features a copper conductor, bare and manufactured according to VDE 0295, where the designation RE indicates a round single-strand conductor. The cores are insulated with PVC, and core identification follows VDE 0293-308, with the designation J indicating the inclusion of a green/yellow protective conductor. The outer sheath is made of black PVC, protecting the cable against external influences.

Applications
This cable is suitable for use in underground installations, outdoors, and indoors. It can be installed in cable ducts and is intended for fixed installations. Use in soil requires sufficient mechanical and chemical resistance, which is ensured by the PVC outer sheath and the cable’s construction. The cable’s protection rating allows use in environments with increased humidity or outdoors, provided there is no direct water exposure or mechanical stress exceeding standard limits.

Functions and Features in Detail
The conductor is made of bare copper, manufactured according to VDE 0295, ensuring high electrical conductivity and mechanical stability. The cores are insulated with PVC, providing good insulation performance and chemical resistance. Core identification follows VDE 0293-308, with the J designation indicating the presence of a green/yellow protective conductor. This protective conductor is essential for safety in electrical installations, particularly for touch protection and fault current protection. The filler compound ensures even distribution of cores within the cable cross-section and prevents unwanted core displacement during installation.

Technology Explained Simply
The cable is rated for a nominal voltage of 0.6/1 kV, making it suitable for use in low-voltage networks. The test voltage is 4 kV, confirming the electrical strength of the insulating material under test conditions. The maximum operating temperature is +70 °C, with installation permitted at temperatures from -5 °C to +70 °C. After installation, the cable can be operated at temperatures from -30 °C to +70 °C, enabling broad application in various climate zones. The bending radius is 15 times the cable diameter for single-core conductors and 12 times for multi-core cables, facilitating installation in curves and bends. Flame retardancy according to VDE 0472 Part 804, test method B (equivalent to IEC 332-1), ensures limited flame spread in case of fire.

Compatibility and Accessories
The cable is suitable for use with standard installation techniques and materials in electrical work. It can be connected using appropriate cable lugs, cable glands, and connection elements designed for PVC-insulated cables. The use of protective conductors (J designation) requires compliance with VDE regulations for protective conductor connections. The cable is not intended for use in explosive atmospheres, as it does not meet specific explosion protection requirements.

Installation and Mounting
Installation involves fixed laying in soil, cable ducts, or indoor spaces. The cable must be laid without exceeding the minimum bending radius to avoid mechanical damage. Laying at temperatures below -5 °C is not recommended, as it may impair the flexibility of the PVC sheath. After installation, the cable should be inspected for mechanical damage and insulation faults. Electrical connections are made using suitable cable lugs or connection elements designed for a cross-section of 2.5 mm².

Operational Advantages
The cable offers high mechanical stability and chemical resistance due to the PVC outer sheath. The inclusion of a protective conductor (J) enhances safety in electrical installations. The flame-retardant design reduces the risk of flame spread in case of fire. The high electrical conductivity of the copper conductor ensures efficient power transmission with minimal losses. The wide operating temperature range enables use in various environments, from cold outdoor areas to warm indoor spaces.