PVC is the most widely used fiber optic cable outer sheath material. It has good performances, good chemical resistance and weathering resistance, low cost, low flammability, and can meet the requirements of general occasions. Three main choices are available: cost-effective PVC, LSZH (compliant with regulations), and TPU (for extreme. OFNP (Optical Fiber Nonconductive Plenum): It can be translated into Chinese as 'Optical Fiber Nonconductive Exhaust Duct Grade'. OFNP is the outer sheath material of optical cables used in air circulation spaces in buildings (such as ceiling mezzanines, ventilation ducts, etc. It requires the. What Is a Cable Sheath and Why It Matters 🔍 The cable sheath is the outer protective layer of a fiber optic cable. Generally speaking, the outer jacket of fiber optic cables is made of low smoke and halogen free materials (LSZH), cross-linked. An electrical cable sheath is the outermost layer of material that covers the electrical conductor, with the primary functions of insulating and protecting the conductor from environmental impacts such as heat, water, chemicals, and mechanical shocks. At the same time, it must have.
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