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ENERGEN: our K1 K2 & K3 cable range
Zugehöriges Dokument
Nuclear Island: Cables inside the nuclear containment eg. K1, K2
Electrical equipment located inside the nuclear containment building plays an essential role in ensuring the safe and reliable operation of a nuclear power plant. The containment is the final barrier designed to prevent the release of radioactive material; as such, all equipment inside must be highly robust and meet the strictest safety requirements.
Within this challenging environment, electrical equipment is expected to function under elevated temperatures, high humidity, and substantial levels of radiation throughout the plant’s operational life. In addition to normal conditions, this equipment must also remain operational during and after severe accidents, such as a Loss of Coolant Accident (LOCA) or a Steam Line Break Accident (SLBA), where sudden environmental changes occur within the containment.
Cables classified under BTS/CST 74C068 are specifically designed and qualified for use in nuclear environments. These nuclear-classified cables must meet rigorous criteria for thermal and radiological ageing resistance, as well as accident scenarios within the containment zone.
- K1 ENERGEN® cables are qualified for the most demanding conditions, including exposure to gamma radiation and proven performance in Loss of Coolant Accident (LOCA) scenarios. These cables are installed in areas where both high radiation and accident conditions are expected.
- K2 ENERGEN® cables are designed to be gamma radiation-resistant, suitable for use in areas where significant radiation exposure is anticipated, but not necessarily under LOCA conditions.
In addition, all nuclear safety cables must demonstrate proven performance in accordance with IEC 60216, guaranteeing reliable operation over a service life of 60 years under continuous exposure to an ambient temperature of 70 °C.
By adhering to these protocols and standards, and by carefully selecting cable types (K1 and K2) appropriate to their installation environment, nuclear facilities ensure the long-term safety, reliability, and compliance of their electrical infrastructure.
ENERGEN® solutions for Nuclear Island:
- Medium voltage energy cables
- Low voltage energy cables
- Control cables
- Instrumentation and sensor cables
Cables for auxiliary facilities critical for the functioning and safety of the plant eg. K3
The conventional island, also known as the non-nuclear or turbine island, encompasses all systems and buildings that are not directly involved in nuclear reactions. This area typically includes the turbine hall, generators, condensers, feedwater systems, auxiliary power supplies, and various support facilities required for plant operation. The conventional island is primarily exposed to industrial environmental conditions rather than nuclear hazards.
It is not necessary for cables installed inside the conventional island to demonstrate radiological resilience, as these areas are isolated from radioactive materials and exposure. However, every cable must demonstrate thermal resilience, given the potential for elevated temperatures associated with power generation and auxiliary machinery. For example, cables with K3 classification according to BTS/CST 74C068 are tested in compliance with IEC 60216, which evaluates their long-term thermal endurance. These tests ensure that the cables can provide reliable performance for 60 years under continuous exposure to an ambient temperature of 70 °C, thereby guaranteeing the safety and longevity required for critical power plant operations.
By meeting these rigorous standards, ENERGEN® solutions for the cabling infrastructure in the conventional island supports the safe and efficient functioning of the plant's non-nuclear systems while adhering to industry best practices and regulatory requirements.
ENERGEN® SOLUTIONS FOR CONVENTIONAL ISLAND:
- Low voltage energy cables
- Fire-resistant power and control cables
- Control cables
- Instrumentation and sensor cables
Balance of Plant (BOP): Cables installed inside the BOP-zone
The Balance of Plant (BOP) zone encompasses areas such as turbine buildings, pump houses, cooling towers, and various utility structures.
Electrical cables in the BOP zone are essential for supporting the operation and control of auxiliary systems that are not directly involved in the nuclear reactor’s core processes. These systems typically include power distribution, control and instrumentation, lighting, communication networks, HVAC (heating, ventilation, and air conditioning), water treatment, diesel back-up system and support for mechanical equipment throughout the plant’s infrastructure.
These cables are not required to be resistant to thermal or radiological aging, since the BOP zone is subject to significantly lower exposure to radiation and extreme heat compared to the nuclear island. However, they must comply with national standards applicable to buildings and infrastructure to ensure reliability, safety, and regulatory compliance.
Lynxeo’s solution for balance of plant application:
- Medium voltage cables for ducts and tunnels
- Low voltage building cables
- Public Address system cables