Self-supporting insulated wires (SIP) from Uglichkabel
SIP (self-supporting insulated wire) from Uglichkabel are modern power lines with light-stabilized polyvinyl chloride or cross-linked polyethylene insulation, designed for transmitting electricity and installing overhead power lines without the need for an additional supporting structure.
By combining the conductor core and insulating coating in a single product, SIP ensures safe operation, ease of installation, and high reliability in a variety of climatic conditions.
There are also different grades of SIP wire, presented below:
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SIP-1: Aluminum round stranded compacted conductors, insulated with light-stabilized cross-linked polyethylene, twisted around an uninsulated neutral stranded compacted aluminum alloy core
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SIP-2: Aluminum round stranded compacted conductors, insulated with light-stabilized cross-linked polyethylene, twisted around an aluminum alloy neutral stranded compacted conductor, insulated with light-stabilized cross-linked polyethylene
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SIP-3: Protected conductors are a round stranded compacted conductor of 7 or 19 aluminum alloy wires, covered with protective insulation made of weather-resistant light-stabilized cross-linked polyethylene
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SIP-4: Aluminum round stranded compacted conductors, insulated with light-stabilized cross-linked polyethylene, twisted together (without neutral stranded conductor)
Application of self-powered insulated wires
SIP wires are widely used in various applications:- Low-voltage overhead power lines (up to 1 kV)

- Connecting private homes, cottages, and summer cottages
- Modular and multi-apartment residential buildings
- Industrial facilities and agricultural enterprises
- Street lighting networks and energy utilities
- Power supply for temporary facilities and construction sites
Advantages of self-powered insulated wires
- High mechanical strength
- Resistance to ultraviolet radiation and temperature fluctuations
- Durable insulation
- Quick and safe installation without complex structures
- Minimal operating losses
Furthermore, the company's products are available in a wide range of cross-sections and designs, allowing for the optimal solution for low- and medium-voltage networks. Uglichkabel's self-supporting insulated wires are adapted for use in harsh climates and designed for a long service life with minimal maintenance costs.
PVS wires from Uglichkabel
The wire from Uglichkabel is a flexible round connecting wire with stranded copper conductors, PVC insulation, and a sheath.PVS wire is designed for:
- indoor transmission and distribution of electrical energy in 380/660 V systems
- connection of electrical appliances and power tools for home maintenance and repair, washing machines, refrigerators, small-scale mechanization
- gardening and vegetable gardening, and other similar machines and devices
- manufacturing extension cords and temporary electrical connections
- fixed and mobile connections, provided protected from direct sunlight
PVS construction
- Conductor
- PVC plasticized, applied by extrusion
- White PVC plasticized, applied by extrusion with filling of outer spaces between the conductors
Advantages of PVS wire
- High flexibility due to stranded conductors

- Retains properties under frequent bending and twisting
- Suitable for domestic and professional applications
- Resistant to abrasion and external influences
- Long-lasting service life
Round design and high flexibility ensure Ease of installation, bending resistance, and operational reliability. Uglichkabel PVC cables are characterized by stable electrical characteristics, compliance with safety requirements, and are suitable for use in domestic, commercial, and industrial settings.
The compact round shape of the cable makes it easy to store, transport, and use in mobile applications.
Differences between PVC and SIP cables
Model |
Purpose |
Design |
Operating conditions |
Mechanical characteristics |
| PVS wire | for connecting electrical appliances, power tools and other electrical connections | has multi-core copper conductors of round shape with PVC insulation and sheath | It is used indoors or in places with moderate mechanical impacts and is not intended for hanging on supports. | is highly flexible |
| SIP wire | for transmitting electricity via overhead power lines and connecting buildings to power grids | has aluminum conductors with durable insulation made of light-stabilized or cross-linked polyethylene | is used outdoors and is designed for long-term outdoor use | has high strength and is able to withstand tension between supports |