The plastic sheath of household cables has a tensile strength of 1.2~1.5kg/mm².
The plastic sheath of household cables usually uses polyvinyl chloride (PVC) material, which is widely used in wires and cables, especially when the voltage is below 600V. The tensile strength of PVC material ranges from 1.2~1.5kg/mm², which is an important indicator of the material's ability to resist tensile damage. In addition, the elongation of PVC material (the degree to which the material can stretch during stretching) is 150~400%, which is also an important parameter for evaluating the flexibility and plasticity of the material.
UL758.1581 and UL444 safety regulations set minimum standards for the tensile strength and elongation of AWM wires and communication cables, respectively. The elongation of AWM wires is at least 100%, and the tensile strength is at least 1500PSI (approximately 1.05kg/mm²), while the elongation of communication cables is also at least 100%, and the tensile strength is at least 2000PSI (approximately 1.37kg/mm²). These standards ensure that the cables can maintain good mechanical properties under normal use conditions, thereby ensuring safe use.