In a modern medical environment, the reliability of electricity is a key factor in ensuring patient safety and recovery. Especially in critical areas such as operating rooms and ICUs, any brief power interruption can lead to serious consequences. Therefore, the electrical safety of hospitals has garnered widespread attention, among which, the medical IT distribution system has been increasingly emphasized.
The medical IT distribution system is a specialized power supply equipment mainly used to ensure the safety of medical devices in case of a fault. Its "IT" represents that the power supply side has no working ground or is grounded through high impedance, while the load-side electrical equipment is grounded for protection. This design ensures high reliability and safety in short supply distances, making the medical IT distribution system especially suitable for environments such as operating rooms, emergency rooms, and ICUs where power outages are not allowed.
When using the IT power supply system, the neutral point of the power source is not grounded. This way, even if there is equipment leakage, the single-phase leakage current is very small and will not cause an imbalance in the power voltage. This design effectively prevents electric shocks and other electrical accidents, ensuring the safety of patients and medical staff.
Adopting the medical IT distribution system has multiple advantages. First, the voltage and leakage current are low, unable to cause electric shock or other electrical accidents. Secondly, in case of a ground fault in the power supply system, the medical IT distribution system can ensure that the power supply is not cut off, maintaining the continuity of power supply. This is especially important for critical medical equipment such as life support devices, ensuring continuous power support for patients at critical moments.
In addition, the medical IT distribution system is equipped with an insulation monitoring function that can monitor the insulation status of the system in real-time. Once an anomaly is found, it will alert immediately, further enhancing the safety of the power supply system.
Despite its many advantages, some points need attention during the use of the medical IT distribution system:
Avoid drawing out the neutral line
The medical IT distribution system should not draw out the neutral line because if there is a ground fault in the neutral line, the insulation monitor cannot alert, possibly causing the system to become a TT or TN system, affecting power supply safety.
High insulation level requirement
Since during a single-phase ground fault, the voltage of the other two phases will rise, higher insulation level requirements are needed for electrical equipment to ensure long-term stable operation.
Reliable PE line connection
The insulation monitor of the medical IT distribution system must be grounded through the PE line to ensure a reliable connection with the PE line. Otherwise, it will not be able to alert in time, affecting power supply safety.
Acrel medical IT distribution system is specially designed for critical medical places such as operating rooms, ICUs, and CCUs. It aims to provide safe and reliable power support for the equipment in these areas. According to the special needs of medical places, Acrel has developed a series of monitoring and fault location functions to ensure insulation monitoring and fault troubleshooting of the power distribution system.
Acrel's products can monitor the insulation status, load conditions, and transformer temperature of the medical IT distribution system in real-time, supporting centralized monitoring of multiple systems to ensure the safe operation of medical devices. The products comply with the enterprise standard Q31/011400129C013-2016 for insulation monitors of medical IT distribution systems, providing strong technical support for the medical industry.
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