General
Conductor	Copper stranded wire, bare, fine-stranded
Wire insulation	PVC
Conductor marking	DIN 47100 colour code
Sheath	PVC
Colour	Grey
Nominal voltage	500 V
Test voltage	1200 V
Temperature range in motion	-5 to +70 °C
Temperature range, non-operating	-40 to +80 °C
Bending radius	15 x cable diameter
Flame retardancy	according to VDE 0472 T. 804, test type B (IEC 332-1)

The LIYY 2X0.5 is a control and signal cable from the manufacturer böhm Kabel, designed for use in systems for signal, measurement, control, and voice transmission. It serves as a connection and interconnection cable in systems such as call and intercom systems, clock systems, weighing installations, and computing systems. The cable is suitable for both fixed and flexible installations, particularly for free movement without tensile stress and without forced movement guidance. It can be used in dry, damp, and wet rooms, with its small outer diameter enabling wiring in confined spaces with small bending radii.

Applications
This cable is intended for a wide range of technical applications in building and automation technology. It is frequently used in security and communication systems where reliable signal transmission with minimal space requirement is necessary. Its use in clock systems, weighing installations, or computing systems requires high mechanical and electrical stability, which the LIYY 2X0.5 provides through its construction. The cable is also suitable for indoor installations that are not subject to heavy mechanical stress.

Functions and Features in Detail
The LIYY 2X0.5 consists of two conductors, each made of bare, fine-stranded copper wire. The conductors are insulated with PVC and marked according to the DIN 47100 colour code, enabling clear identification and wiring. The conductors are stranded in layers, ensuring even distribution of mechanical stress and improved flexibility. The outer sheath is also made of PVC and is finished in grey colour, providing good visibility and identification during installation.

Technical Details Explained
The rated voltage is 500 V with a conductor cross-section of 0.25 mm², which is sufficient for most control and signal applications. The test voltage of 1200 V ensures the electrical strength of the insulation. The cable is designed for a temperature range of -5 °C to +70 °C for moving applications; for fixed installations, it can be operated from -40 °C to +80 °C. The bending radius is 15 times the cable diameter, allowing flexible installation even in tight bends. The flame retardancy corresponds to test method B according to VDE 0472 T. 804 (equivalent to IEC 332-1), limiting flame spread in case of fire.

Compatibility and Accessories
The cable is compatible with standard connectors and plugs for control and signal applications. The colour coding according to DIN 47100 allows for clear identification of the conductors, which is helpful during installation and maintenance.

Installation and Mounting
Installation is typically done by routing in conduits, cable ducts, or openly along walls, depending on the requirements of the specific system. The flexible construction allows installation with small bending radii, making it suitable even for complex geometries. The cable is suitable for both fixed and flexible applications, but not for systems with high tensile stress or forced movement guidance.

Operational Advantages
The LIYY 2X0.5 offers high mechanical and electrical reliability with minimal space requirement. The PVC insulation and sheath provide good chemical resistance and weather resistance. The flame-retardant design increases operational safety. The clear colour coding according to DIN 47100 simplifies installation and maintenance. The cable is suitable for a wide range of applications in building and automation technology, where its low profile and flexibility offer advantages for wiring in confined spaces.