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 (=IEC 332-1)
Conductor type	round solid (RE)
Conductor marking	according to VDE 0293-308 J = with green/yellow protective conductor
Wire insulation	PVC -
Outer sheath	PVC black -

The cable of the brand VDE-Kabel, type NYY-J 3X2.5 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 a copper earth cable with PVC insulation and a black-coloured outer sheath, suitable for a wide range of electrical installations in industry, construction, and public sectors due to its construction and compliance with standards. The designation NYY-J indicates a cable with a green-yellow protective conductor, confirming compliance with VDE 0293-308 for conductor identification. The type RE means that the conductors are round and single-strand, ensuring high mechanical stability and minimal deformation during installation.

Applications
This cable is intended for use in underground installations, outdoor environments, as well as in enclosed rooms and cable ducts. It is suitable for supplying electrical devices, machines, and systems requiring fixed installation. Use in the ground is possible due to the PVC insulation and protective outer sheath, taking into account mechanical load capacity and resistance to environmental influences such as moisture and ground pressure. Temperature resistance allows installation at temperatures from -5 °C and operation up to +70 °C, with post-installation temperatures down to -30 °C permitted.

Functions and Equipment in Detail
The cable consists of bare copper conductors manufactured according to VDE 0295. The conductor insulation is made of PVC, providing high electrical insulation and mechanical strength. Conductor identification follows VDE 0293-308, where the designation J indicates the integrated green-yellow protective conductor. The filler sheath ensures even distribution of conductors in the cable cross-section and prevents movement between conductors. The black-coloured outer sheath made of PVC protects the cable against external influences such as mechanical stress, moisture, and UV radiation.

Technology Explained Simply
The rated voltage of 0.6/1 kV makes the cable suitable for use in low-voltage installations, as commonly found in industry, residential construction, or public infrastructure. The test voltage of 4 kV serves quality assurance and ensures the cable’s electrical strength under load. The maximum operating temperature of +70 °C is intended for continuous use under normal operating conditions. The bending radius is 15 times the cable diameter for single-core conductors and 12 times for multi-core, which must be considered during installation to avoid damage. 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 plugs, cable lugs, and other connection elements designed for low-voltage installations with PVC insulation and copper conductors. It can be installed in cable ducts, in the ground, or outdoors, provided the respective installation regulations and standards (such as VDE 0100) are observed. Installation in cable ducts requires appropriate sizing to accommodate the required bending radii.

Installation and Mounting
During installation, the specified bending radii must be observed to ensure the mechanical integrity of the cable. Underground installation requires sufficient depth and possibly a protective sleeve, depending on soil conditions and environmental factors. Installation outdoors or indoors follows standard procedures, with electrical regulations and relevant standards (e.g. VDE 0100) to be observed. Conductor connections are made using suitable cable lugs or connectors designed for a cross-section of 2.5 mm².

Operational Advantages
The cable offers high mechanical stability, good electrical conductivity, and high resistance to environmental influences. The integrated green-yellow protective conductor ensures safe earthing and meets the requirements of VDE 0100. The PVC insulation provides reliable electrical separation of conductors and protects against short circuits. Flame retardancy reduces the risk of fire spread in case of fire, enhancing operational safety. Use in various environments — from underground to indoor spaces — makes the cable a versatile solution for electrical installations.

Protection Rating
The cable is not classified as an IP protection rating, as it is a fixed installation cable intended for use in cable ducts, in the ground, or outdoors. Protection is provided by the PVC insulation and outer sheath, which protect against moisture, mechanical stress, and UV radiation. Underground installation may require additional protective measures, such as a protective sleeve, depending on soil conditions and environmental factors.

Cable Type
The type NYY-J 3X2.5 RE TR is a copper earth cable with three conductors, one of which is a green-yellow protective conductor. The designation RE stands for round single-strand, ensuring high mechanical stability and minimal deformation during installation. The abbreviation TR refers to the packaging form (drum), facilitating handling and installation.

Standards Compliance
The cable complies with VDE 0295 for conductors, VDE 0293-308 for conductor identification, and VDE 0472 Part 804, test method B, for flame retardancy. The rated voltage of 0.6/1 kV and test voltage of 4 kV meet the requirements for low-voltage installations. Temperature resistance and bending radius are also designed in accordance with applicable standards.

Practical Use
The cable is frequently used in industry, residential construction, public sectors, and agriculture, where fixed installation of electrical lines is required. It is particularly suitable for systems requiring high mechanical load capacity and long service life. Underground use requires careful planning of installation to ensure necessary protective measures and correct depth.