Overview of Core Differences

Both YC and YZ are rubber-sheathed cables, but they differ significantly in design positioning and performance characteristics. YC belongs to the heavy-duty general-purpose rubber-sheathed category, suitable for environments with high mechanical stress; YZ, on the other hand, is a medium-duty rubber-sheathed cable, emphasizing flexibility and applications in medium-load scenarios. The two types are distinctly differentiated in voltage levels, mechanical performance, conductor specifications, and applicable environments.

Voltage level difference

The YC cable has a rated voltage of 450/750V and is suitable for higher voltage environments

The YZ cable has a rated voltage of 300/500V and is suitable for low-voltage applications

Mechanical Properties Comparison

The YC cable has a relatively thick sheath, capable of withstanding significant mechanical external forces

The YZ cable sheath is relatively thin and has weaker resistance to mechanical external forces

Differences in Conductor Specifications

The cross-sectional area of YC cable conductors is relatively large, typically 10mm² or larger

The YZ cable conductor has a relatively small cross-sectional area, primarily ranging from 0.75mm² to 6mm²

Technical Parameters Comparison

Current-carrying capacity difference

Under the same cross-sectional area, the current-carrying capacity of YC cables is 25%-31% higher than that of YZ cables

The larger the cross-sectional area, the more pronounced the absolute difference in current-carrying capacity between the two

YC cables exhibit superior heat dissipation performance, allowing higher continuous operating currents

structural characteristics

The YC cable conductor is made of stranded thick copper wires, offering high mechanical strength

The YZ cable conductor is made of medium-thick copper wire, offering better flexibility The YC cable sheath adopts highly conductive neoprene rubber, offering superior heat dissipation efficiency

Temperature tolerance

The long-term allowable operating temperature for both types of cables does not exceed 60°C

YC cables exhibit superior sheath temperature control under the same current

Scenario Analysis

Heavy Equipment Applications

YC cables are suitable for port machinery, searchlights, and large-scale water conservancy drainage stations

Capable of withstanding mechanical stresses such as crushing and dragging

Suitable for heavy machinery with a power rating exceeding 27kW

Medium load scenario

YZ cables are suitable for agricultural electrification and power tool connections

Suitable for small and medium-sized equipment with a power rating of less than 27 kW

Commonly used in scenarios such as temporary lighting and small water pumps

Special Environmental Adaptability

YC cables are more suitable for harsh outdoor environments, being resistant to oil stains and wear

YZ cables are suitable for damp or oily environments but offer weaker mechanical protection

Both types of cables exhibit excellent weather resistance and bending characteristics

Selection Suggestions

Power matching principle

For equipment with a power rating of ≤27kW, YZ cables are preferred

For equipment with a power rating exceeding 27kW, YC cables must be selected

Avoid using YZ cables as a substitute for YC connections when linking high-power equipment

Cost-benefit consideration

YZ cables use less material and offer higher cost performance

YC cables offer superior performance but are relatively expensive

Balance performance and cost based on actual needs

Strictly prohibit overloading to prevent cable overheating

Pay attention to the operating temperature limits to prevent insulation aging

Select qualified products that meet the standards