Insulation Cables

Insulation is a protective covering to the cable carrying electric charge. The main aim of providing an insulation around the cable is to avoid electrical leakage and prevent the wire from coming in contact with other conductors. The insulating material is chosen such that it does not conduct electricity since its internal charge flow is restricted, making it impossible to facilitate an electric flow.

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Detailed Description for Insulation Cables

 

Polyvinylidene is a thermoplastic fluoropolymer that is often used as insulation jacketing for wire and cables. Some of the industries that commonly use insulating cables are,
•    Medical
•    Defense
•    Chemical
•    Semiconductor
Wire insulations when used as a jacketing material for cables, it becomes ideally suited for applications that require flexibility, strength and less dense. It builds abilities such as durability and resistance for its entire lifetime. It is specifically suited for applications requiring chemical resistance. The insulation withstands substances like chlorine and hydrogen gasses. They also provide resistance to high temperatures, flames etc.

CONSTRUCTION
Insulation consists of a layer of high molecular weight polyethylene on the conductor followed by several coating of insulating plastic. Such plastics have high resistance to fire and corrosion.

TYPES
1.    Cables made of plastic: These cables are inexpensive and easy to use. It can sustain in temperatures up to 120-degrees. It is also resistant to gasoline, acids, and other solvents. Some of the common insulations given in plastic are,
•    Polyvinyl chloride (PVC)
•    Semi-Rigid PVC
•    Plenum PVC
•    Polyethylene (PE)
•    Polypropylene (PP)
•    Polyurethane (PUR)
•    Chlorinated Polyethylene (CPE)
•    Nylon
2.    Rubbers: Its improved color ability, high processing speeds and flame retardant properties are most preferred. Some of the commonly used rubber insulations are,
•    Thermoplastic rubber (TPR)
•    Neoprene
•    Styrene butadiene rubber
•    Silicone
•    Fiberglass
3.    Fluoropolymers: These insulations have an excellent electrical efficiency. Some exhibit thermosetting qualities. They are extremely flexible and resistant to heat, water, oil and chemicals. Synthetic rubber insulations has an outstanding ability to withstand abrasions. They have extreme flexibility at both high and low temperatures. Some of the fluoropolymers used are,
•    PFA
•    Polytetrafluoroethylene (PTFE)
•    Fluorinated ethylene propylene (FEP)
•    Polyvinylidene fluoride (PVDF)
•    Thermoplastic elastomers (TPE)

USES
•    Lithium-ion batteries
•    Aviation and aerospace application in cross linked closed cell foam
•    They are used in the form of pipe, sheet, tube, plate and insulation for wire products
•    Used in transatlantic fiber optic cables.
APPLICATIONS
•    They are directly installed in underwater environments like fresh, salt water and brackish water.
•    Insulation is resistant to contact with acidic substances and chemicals like chlorine, sulfuric acid and hydrochloric acid.
•    These cables are used for wiring electrical control panels, industrial sheds and building etc.
•    PVC insulated cables emit less smoke and toxic hydrochloric acid gas.
•    Used in data transmission and electrical applications to bridges and robotics
•    Fiber optics, off shore umbilical, low voltage and constant movement applications.
•    Halogen free insulations does not liberate harmful hydrochloric gas when exposed to flame.

 

 

 

 

 

 

 

 

 

 

 

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