General
Nominal voltage	0,6/1 kV
Test voltage	4 kV
Installation temperature range	-5 to +70 °C
Temperature range after installation	-30 to +70 °C
Operation temperature	+70 °C
Bend radius single-core	15 x cable diameter
Bending radius multi-core	12 x cable diameter
Flame retardancy	VDE 0472 Teil 804, Prüfart B (IEC 332-1)
Circuit board construction	sector-shaped stranded (SM)
Wire insulation	PVC
Outer sheath	PVC black
Conductor marking	according to VDE 0293-308

The copper earth cable NYY-J 4X35 SM 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 particularly suitable for applications requiring high mechanical and chemical resistance as well as secure electrical power transmission. The cable features a black-coloured PVC outer sheath and is equipped with a green-yellow protective conductor, ensuring compliance with VDE standards for electrical installations.

Applications
This cable is suitable for use in various environments, including underground installations, outdoor applications, indoor spaces, and cable ducts. It is commonly used in industry, construction, and public infrastructure, where reliable and durable power supply is required. Installation must consider the specified temperature range, which during installation lies between -5 °C and +70 °C. After installation, the cable can withstand temperatures from -30 °C to +70 °C.

Functions and Features in Detail
The conductor is made of bare copper, manufactured according to VDE 0295, and has a sector-shaped multi-strand (SM) construction. This design ensures optimal current conduction and good flexibility. The cores are insulated with PVC, with core identification according to VDE 0293-308. The designation J indicates that the cable includes a green-yellow protective conductor, which is essential for electrical safety. A filler layer ensures even distribution of the cores within the cable cross-section.

Technical Explanation
The rated voltage is 0.6/1 kV, meaning the cable is suitable for transmitting electrical energy in medium-voltage installations. The test voltage of 4 kV serves quality assurance and ensures the cable remains stable even under increased electrical stress. The maximum operating temperature of +70 °C guarantees safe operation under normal conditions. 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 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 designed for use with standard installation techniques and materials. It can be installed in cable ducts, underground, or outdoors. Connections are made using appropriate cable lugs, cable glands, or other electrical connection components suitable for the specific application. The use of appropriate tools such as cable cutters, wire strippers, or cable knives is required to ensure clean and safe processing.

Installation and Mounting
Installation requires adherence to the specified temperature ranges and bending radii. The cable should not be excessively bent or stretched to avoid damage to the conductors. Underground installation requires sufficient depth and protective measures against mechanical damage, such as protective conduits or concrete slabs. Electrical connections are made using suitable connection components designed for the respective voltage and current rating.

Operational Advantages
The cable offers high mechanical strength, good resistance to environmental influences, and reliable electrical conductivity. The PVC insulation and outer sheath protect the cable against moisture, mechanical stress, and chemical influences. Flame retardancy increases safety in case of fire. The use of a green-yellow protective conductor ensures compliance with safety regulations and protects people from electrical hazards.