Cable products are essential across various industrial sectors, facilitating the transmission of signals or electricity over different distances. The primary goal of such products is to ensure reliable transmission, which is crucial for achieving desired outcomes.

Cable products encompass a variety of insulated and non-insulated conductors designed primarily for transmitting electrical energy or information signals. These include wires, cables, cords, tapes, optical cables, and other related products.

Wires: A wire consists of one uninsulated or several insulated conductors with or without a non-metallic sheath. Conductors can be single-strand or multi-strand, made of copper or aluminum, varying in section and quantity. The section determines the maximum permissible current.

Types of wires include

• Self-supporting insulated wires (SSIW) — for overhead power lines, capable of withstanding high mechanical loads.
• Installation wires — flexible, resistant to bends, used for indoor wiring.
• Domestic wires (e.g., VVG, PVS) — for indoor electrical wiring, featuring copper multi-strand cores and PVC insulation.
• Messenger wires — used on power line supports, with a supporting strand to enhance mechanical strength.
• Coil wires — for making coils in electrical machines, featuring thin, heat-resistant insulation.
• Installation wires — for stationary wiring, with various sections and PVC or rubber insulation.
• Welding wires — flexible, resistant to splashes of molten metal.
• Underground and underwater laying wires — moisture-resistant, with additional protection.

Cables: A cable comprises one or more insulated conductors within a common sheath, which can be metallic or non-metallic depending on installation conditions.

Main types of cables include:

• Power cables — for transmitting and distributing electrical energy at different voltage levels (low, medium, high).
• Control cables — for transmitting weak signals in control and management systems, featuring fine copper wires and reliable insulation.
• Communication cables — used in telephone communication and data transmission systems, high-frequency, with twisted pairs.
• Distribution cables — used for switching various electrical circuits, flexible and multi-core.
• Special cables — for signal transmission in extreme conditions, fire-resistant, cold-resistant, moisture-resistant.
• Optical cables — for transmitting information via optical fibers.
• Radio frequency cables — for transmitting radio signals, shielded.

Cords: Cords differ from cables in their flexibility and small conductor section, consisting of several twisted or parallel flexible insulated conductors within a common sheath. Cords are used for connecting household and portable electrical appliances.

Types of cords include power cords, connecting cords, extension cords, with copper conductors and PVC insulation. They typically feature 2 to 5 conductors and a conductor section of 0.5-2.5 mm². Maximum voltage can reach up to 380 V.

Key Characteristics of Cable Products:

• Copper and aluminum conductors.
• Conductor section determining maximum current.
• Number of conductors.
• Insulation and sheath material, commonly PVC or rubber.
• Presence of shields and armor for protection against external influences.
• Operating temperature range.
• Voltage level (for power cables).

Marking of Cable Products: Product marking (conventional designation) allows for identification and includes letters and numbers indicating key cable characteristics.

Example marking: VVgn(A)-LS 3×2.5

Decoding:

• V — PVC-insulated conductors
• V — PVC sheath
• gn — flexible cable
• (A) — aluminum conductors
• LS — low smoke and gas emission
• 3 — three conductors
• 2.5 — 2.5 mm² section for each conductor

Applications: Cable products are widely used in power engineering, industry, telecommunications, transportation, and households. Major applications include:

• Power engineering: high-voltage transmission networks, urban distribution grids, internal power networks in industrial plants, municipal utilities.
• Industry: power supply for industrial equipment, automation and control systems in manufacturing, connection of machinery and electric drives.
• Telecommunications and data transmission: backbone communication lines, satellite systems, telephone networks, data transmission networks, structured cabling systems in buildings.
• Transportation: electrification networks for railways, metro systems, airports; onboard electrical equipment for vehicles; signaling, centralization, and blocking systems in transportation.
• Household and special applications: electrical wiring in residential, public, and industrial buildings; connection of household appliances and power tools; cables for fire protection systems; cable products for the oil and gas industry, military-industrial complex, and emergency services.

Standards: Requirements for cable products are documented in industry and state standards, ensuring the quality and reliability of cable products.

Selection of cable products is based on operational conditions and requirements for reliability and safety.

Key standards and regulatory documents include:

• GOST 31565-2012 Cable products. Fire safety requirements.
• GOST R 53769-2010 Power cables with plastic insulation.
• GOST 16442-80 Cables, wires, and cords. Testing methods for heat resistance.
• Rules for Electrical Installations (PUE).
• Corporate standards (RSC, STP, TU) of manufacturing enterprises.
• International standards for cable products (IEC, HD).