Insulation Requirements:​ 90kV medical high-voltage cables demand higher insulation performance. As voltage increases, requirements for electrical strength, insulation thickness, and material quality become more stringent to effectively prevent leakage and breakdown under high voltage. Typically, 90kV cables feature thicker insulation layers and higher-grade insulating materials compared to 75kV cables.

Electric Field Distribution:​ 90kV cables generate a stronger and more complex electric field during operation. Their design and manufacturing require more precise control of electric field distribution to avoid insulation damage from localized field concentration. This often involves more advanced shielding technologies and structural designs.

Voltage Withstand Capability:​ 90kV medical high-voltage cables can withstand higher voltages. Under similar operating conditions, they offer greater resistance to voltage surges and can tolerate higher overvoltage multiples compared to 75kV cables.

Insulation Thickness:​ Generally, 90kV cables have thicker insulation layers than 75kV cables to provide sufficient dielectric strength for the higher voltage.

Shielding Layer:​ To better control electric field distribution and reduce electromagnetic interference, 90kV cables often employ higher-quality materials and more complex structures in their shielding layers, meeting more stringent shielding requirements.

Overall Dimensions:​ Due to differences in insulation and other structural components, 90kV cables typically have a larger overall outer diameter and may be heavier than 75kV cables.

Equipment Compatibility:​ 75kV high-voltage cables are commonly used to connect X-ray tubes and generators operating at up to 125kV tube voltage, such as in certain DR and X-ray systems. 90kV high-voltage cables are used for connections in systems with tube voltages up to 150kV, often found in higher-power CT scanners and advanced X-ray equipment.

Power Transmission Distance:​ In longer-distance power transmission within medical systems, 90kV cables can theoretically transmit power over greater distances due to lower electrical losses at higher voltages. This makes them suitable for applications requiring longer cabling runs or higher power delivery. 75kV cables are typically used for shorter distances or in applications with slightly lower voltage requirements.

Usage Environment:​ While both cable types can operate in various environments, 90kV cables may be preferred in specialized medical settings with extremely high demands for voltage stability or complex electromagnetic environments. 75kV cables are often sufficient for general use in hospital and clinical settings.

Manufacturing Process:​ The production of 90kV medical cables involves stricter and more complex process requirements. Higher technical standards and more precise equipment are needed for processes like insulation material handling, conductor stranding, shielding layer fabrication, and overall quality control to ensure cable performance and reliability.

Cost:​ Due to the higher requirements for insulation materials, shielding structures, and manufacturing processes, 90kV cables generally have a higher production cost than 75kV cables. This includes costs for raw materials, production equipment, and testing, resulting in a higher market price.