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	VDE 0472 Part 804 Test type B
Conductor type	round solid
Conductor material	Copper
Wire insulation	PVC
Outer sheath	PVC black
Protective conductor	with green/yellow protective conductor
Conductor marking	according to VDE 0293-308

The cable of the brand VDE-Kabel, type NYY-J 7X1.5 RE TR, 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 the transmission of electrical power and control signals in industrial, commercial, and municipal installations. The cable features a black-coloured PVC outer sheath and is equipped with a green-yellow protective conductor, indicated by the designation J in the type identifier. The conductors are made of bare copper, manufactured according to VDE 0295, and are produced in round single-strand configuration (RE), ensuring high mechanical stability and low elongation during installation.

Applications
This cable is suitable for use in underground installations, outdoor environments, and indoor spaces where permanent and secure power supply is required. It can be installed in cable ducts and is appropriate for applications in building electrotechnics, industry, agriculture, and public facilities. Use in soil requires sufficient mechanical and chemical resistance, which is ensured by the PVC outer sheath and the cable’s construction.

Functions and Equipment in Detail
The cable’s cores are insulated with PVC, providing high electrical insulation performance and resistance to moisture and environmental influences. Core identification follows VDE 0293-308, with the first five cores colour-coded. From the sixth core onwards, a black core with white numerals is used for identification. The green-yellow protective conductor is integrated as an additional safety measure to ensure a safe path for fault currents in case of electrical system malfunctions.

Technology Explained Simply
The rated voltage of the cable is 0.6/1 kV, meaning it is suitable for operating voltages up to 1 kV, with a test voltage of 4 kV. This ensures the cable operates safely even under increased voltage loads. The maximum operating temperature is +70 °C, and the cable can be installed at temperatures ranging from -5 °C to +70 °C. After installation, it can withstand temperatures from -30 °C to +70 °C, enabling broad application in various climatic zones. The bending radius is 15 times the cable diameter for single-core conductors and 12 times for multi-core cables, allowing flexible installation without damaging the conductors. Flame retardancy corresponds to test method B according to VDE 0472 Part 804 (equivalent to IEC 332-1), meaning the cable does not produce flames during a fire test and does not propagate flame beyond a specified area.

Compatibility and Accessories
The cable is suitable for use with standard installation techniques and materials in electrical installations. It can be connected using appropriate cable lugs, cable glands, and other connection elements designed for PVC-insulated cables.

Installation and Mounting
Installation involves fixed laying in the ground, in cable ducts, or indoors. The laying must ensure the bending radius is not exceeded to maintain conductor integrity. Underground laying requires sufficient depth and possibly additional protective measures against mechanical damage. Cable ends are connected using suitable connection elements designed for the respective conductor cross-section and insulation type.

Operational Advantages
The cable offers high mechanical and electrical reliability, is resistant to moisture and environmental influences, and meets flame retardancy requirements. The use of a green-yellow protective conductor increases operational safety. The PVC insulation and outer sheath ensure long service life and low maintenance requirements. The cable construction allows for easy and safe installation in various environments.