Insulation ni nini?
Insulation ya cable ni sehemu muhimu ya cable yoyote. Inafanywa kwa nyenzo zisizo za conductive ambazo hufunika waya. Pia inajulikana kama insulation ya umeme.
Madhumuni ya insulation ni kutenganisha sasa kutoka kwa cable iliyobaki, keeping it inside the wire and preventing it from entering the surrounding environment.
Wakati huo huo, the insulation protects the wire from the harsh conditions in the installation environment and ensures its proper operation.
Insulation can be made of different materials, depending on the wire’s target application.
But overall, plastic, rubber, and fluoropolymers are the most common types of wire insulation.
Plastic Insulation
Polyvinyl chloride (PVC)
Polyvinyl chloride is resistant to moisture, moto, na abrasion na inaweza kutumika katika mazingira mengi. Kwa mfano, asidi, vimumunyisho, na ozoni.
Cables za maboksi za PVC pia hazina ladha au harufu, kwa hivyo hazina sumu. Kiwango cha joto kinachoruhusiwa kwa nyenzo hii ni -55°C hadi 105°C.
Semi-Rigid (SR) PVC
SR-PVC ina sifa sawa za kupinga Insulation ya PVC, lakini nyenzo hii ni bora wakati upinzani wa juu wa abrasion ni kipaumbele.
PVC inayoongoza
Plenum PVC pia imetengenezwa na PVC, lakini inafaa zaidi kwa ajili ya ufungaji katika maeneo ya ndani na mzunguko wa hewa, kama vile sakafu iliyoinuliwa au dari zilizoanguka.
Polyethilini (PE)
Polyethilini ni nyenzo ngumu inayotumiwa wakati kasi ya juu ya maambukizi na uwezo mdogo inahitajika.
Polyethilini pia ni chaguo linalopendekezwa kwa insulation ya cable coaxial. Nyenzo hii ni sugu kwa soldering, kupasuka, na vimumunyisho, na hufanya kazi katika halijoto kati ya -65°C na 80°C.
XLPE (polyethilini iliyounganishwa na msalaba) insulation ni aina ndogo ya kawaida ya insulation ya polyethilini.
Polypropen (PP)
PP ina sifa sawa na PE lakini hutumiwa hasa katika mazingira ya ndani. Kiwango cha joto kinachoruhusiwa kwa insulation hii ni 30 ° C hadi 80 ° C.
Polyurethane (PUR)
PUR ni nyenzo inayoweza kunyumbulika hasa inayotumiwa kwa nyaya katika mazingira ya halijoto ya chini na baharini. Ni sugu kwa unyevu, kemikali, na abrasion na ina kiwango cha joto cha uendeshaji cha -60°C hadi 90°C.
Insulation ya Mpira
Mpira wa Thermoplastic (TPR)
TPR inastahimili joto la juu na hali mbaya ya hewa na ni chaguo bora wakati kasi ya juu ya usindikaji inahitajika.
Neoprene (Polychloroprene)
Neoprene ni sugu kwa abrasion, mafuta, na vimumunyisho. This insulating material makes wires durable.
Ethylene-Propylene Rubber (EPR)
EPR is widely used in high-voltage cables – it is flexible and resistant to most irritants. the allowable temperature range for EPR cable insulation is -50°C to 160°C.
Ethylene-propylene-diene monomer (EPDM)
EPDM is resistant to harsh weather conditions, heat and abrasion, as well as being a strong dielectric and flexible. Its operating temperature range is -55°C- to 50°C.
Silicone
Silicone is a widely used flexible synthetic rubber insulation material. Nyenzo hii ni muhimu sana katika maeneo yenye joto kali kwani inaweza kustahimili halijoto ya hadi 180°C.
Fiberglass
Fiber ya kioo ni sugu kwa unyevu na kemikali.
Insulation hii ya kioo ina joto la juu la uendeshaji la 482 ° C na mara nyingi hutumiwa katika tanuu, usindikaji wa alumini, na matibabu ya joto.
Mpira wa Styrene-Butadiene (SBR)
SBR ina sifa sawa na neoprene lakini hutumiwa zaidi katika kebo ya Mil-C-55668.
Vifaa vya insulation ya Fluoropolymer
Alkoksi yenye perfluorinated (PFA)
PFA ni imara na, kwa hiyo, durable insulating material that can be used in extreme temperatures (from -65°C to 250°C).
Polytetrafluoroethylene (PTFE)
Polytetrafluoroethylene is a flexible thermoplastic material that is heat, mafuta, moisture, and chemical resistant.
The allowable temperature range for this material is -70°C to 205°C.
Fluorinated ethylene propylene (FEP)
FEP is typically used in down jackets and military cables due to its high flame resistance and excellent data transmission capabilities.
Polyvinylidene Fluoride (PVDF)
PVDF is also known as Kynar – it is resistant to most irritants, including flame. It is also flexible and not heavy, which makes it well suited for airy indoor environments.
Choosing the right cable insulation
The type of insulation you choose depends on the application scenario of your cable. Katika Veri Cables, we have various types of cables with aluminum and copper conductor insulation. Kwa mfano, some of our most popular products are low-voltage aluminum wires with PVC insulation and copper medium and high voltage cables with XLPE insulation. Wasiliana nasi ili kupata katalogi yetu mpya zaidi, tazama bidhaa zaidi na upate waya na kebo unayohitaji kwa mradi wako.