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Houses the nuclear core, steam generator and support systems which feed the turbine in the Conventional Island: averages 1,800 km of fire-retardant and halogen-free cables per unit.
LV/MV energy cables
These 1 kV to 10 kV cables are used to power all the pumps including the primary ones which move water between the reactor vessel and the steam generators in the containment area.
Nexans produced K3 and K1 (radiation-protection and LOCA) cables for operation and automatic shutdown for the Ling Ao 3+4 project in China.
Control cables
500 V to 1,000 V control cables (with radiation-resistance and LOCA design) are used to provide control for primary pumps, safety valves, chemical and volume control, residual heat removal, containment sprinkling system (EAS), primary waste treatment, ventilation, air-conditioning, etc.
Since nuclear power plant cables must offer higher reliability than ordinary cables, insulation and design are optimized to last up to 60 years, as required for EPR Flamanville (France).
Instrumentation / sensor cables
Individually or collectively screened multi-pair, triad or quad cables are used for constant system surveillance by measuring steam pressure, water and component temperature, liquid levels, flow rates, and vibration, etc.
Nexans instrumentation/sensor cables can be bi-metallic (for thermocouples) and are designed according to K1 and K3 requirements to offer maximum reliability during normal operating conditions and in the event of incidents and accidents.
LAN cabling systems
Especially adapted to the nuclear power plant environment, Nexans fiber optic cables and Category 6 and 7 copper solutions provide horizontal backbones connecting all areas of the plant.
Compliant fiber optic and copper LANs are often installed in redundant, parallel structures to provide maximum emergency backup.
Control room cables
With over 100,000 connections throughout the power plant, these cables are its nervous system, transmitting all crucial energy and information: from low-voltage systems for lighting, ventilation and climate to measurement, control and telecommunications cables for safe operations.
Nexans furnished all control and instrumentation cables for the control room of Cernavoda 2 (Romania), and others.
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