What does LSZH mean?
Low smoke, zero halogen. The sheath limits smoke density and corrosive gases in a fire, which keeps escape routes visible and reduces damage to equipment.
Products we supply
Power, Control & Data Cables
Power, control, signal and data cables specified by current, route, environment and reaction to fire.
01Overview
Supply and engineering from one team
Powersense supplies installation, LV, MV and HV power cables, underground, control, fibre-optic and copper data cables, and engineers the selection: cross-section, voltage drop, short-circuit withstand and fire performance for each circuit.
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02Scope and process
Engineering scope and deliverables
- 01
Circuit data
Load current, voltage, length, installation method and ambient temperature are recorded for each circuit.
DeliverableCircuit list - 02
Current-carrying capacity
Cross-sections are chosen with correction factors for grouping and temperature (IEC 60364-5-52 and IEC 60287).
DeliverableCable schedule - 03
Voltage drop and fault withstand
Voltage drop is kept within limits, and the thermal withstand of conductor and screen is checked against the clearing time of the protection.
DeliverableVoltage-drop and thermal check - 04
Fire performance
Reaction to fire (Euroclass, EN 50575) and flame propagation of bunched cables (IEC 60332-3) are matched to the building requirement, with halogen-free sheaths where needed.
DeliverableCable-type specification - 05
Environment and route
Sheath and construction are chosen for soil, UV, water, mechanical load or temperature, and routes are coordinated with trays and other services.
DeliverableRoute and tray plan - 06
Termination and testing
Terminations, labelling and insulation and continuity tests are completed, with certification of fibre and copper data links where applicable.
DeliverableTest records, labelled schedule
03Standards
International standards applied
These standards form the technical basis for design and equipment selection. The exact set is confirmed for each project against the national regulations in force.
- IEC 60364-5-52Selection and erection of wiring systems: current-carrying capacity, installation methods and voltage drop.
- IEC 60287-1-1Electric cables: calculation of current rating, equations for steady-state operation.
- IEC 60502-1Power cables with extruded insulation: requirements for rated voltages of 1 kV and 3 kV.
- IEC 60228Conductors of insulated cables: classes and nominal cross-sections.
- EN 50575Power, control and communication cables: reaction to fire classification for construction products.
- IEC 60332-3Tests on electric cables under fire conditions: vertical flame spread of bunched cables.
04Products
Products we supply
- Installation, LV, MV and HV power cables
- Underground and halogen-free (LSZH) cables
- Control, signal, telephone and antenna cables
- Fibre-optic and copper data cables
- Solar, marine and railway cables
- Special cables on request
05Project types
Typical project types
- Buildings and data networks
- Industrial plants
- Solar installations
- Marine and rail projects
- Hospitals and public buildings
- Substations and utility connections
06Technical notes
Technical notes and FAQ
Why is each cable calculated instead of taken from a table?
Correction factors for grouping, temperature and installation method can change the permitted current considerably. Each circuit is calculated, including voltage drop and short-circuit withstand.
07Keep exploring
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Turnkey installation of power, low-current and automation systems, with equipment supplied, verified to IEC 60364-6 and handed over with full documentation.
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