What technical specifications differentiate low - voltage from medium - voltage cable designs, and how do these variations impact installation requirements?

Q: What technical specifications differentiate low - voltage from medium - voltage cable designs, and how do these variations impact installation requirements?   A: Low - voltage cables (rated up to 1000V) typically feature simpler construction with single - layer PVC or XLPE insulation, unarmored configurations for indoor use, and smaller conductor cross - sections optimized for residential and commercial wiring. In contrast, medium - voltage systems (1kV to 35kV) require enhanced insulation with semi - conductive screens to control electric field distribution, copper tape shielding for EMI protection, and steel wire armoring for mechanical resilience in underground or industrial environments.   Installation diverges significantly: low - voltage cables allow direct burial without specialized conduit in non - hazardous areas, while medium - voltage variants mandate precise bending radius compliance (>12x cable diameter) and temperature monitoring during jointing to prevent insulation degradation. Termination hardware also differs—MV systems use epoxy bushings and stress cones to manage voltage stress, whereas LV connections utilize simple compression lugs. These distinctions ensure each category meets safety standards tailored to their operational voltage thresholds and environmental exposure risks.