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From allaboutcircuits.com
Material* Dielectric strength ========================================= Vacuum --------------------- 20 Air ------------------------ 20 to 75 Porcelain ------------------ 40 to 200 Paraffin Wax --------------- 200 to 300 Transformer Oil ------------ 400 Bakelite ------------------- 300 to 550 Rubber --------------------- 450 to 700 Shellac -------------------- 900 Paper ---------------------- 1250 Teflon --------------------- 1500 Glass ---------------------- 2000 to 3000 Mica ----------------------- 5000 Products & Services
Electrical insulators, high voltage bushings and porcelain insulator assemblies provide electrical isolation of power line conductors in transmission and distribution (T & D), substation, transformer, capacitor and power protection applications.
Waxes and wax compounds are high molecular weight organic materials similar to fats and oils, except waxes are solid at room temperature (melting point above 45 C). Waxes are used in sealers, polishes, inks, lubricants, binders and investment casting.
Solid and dry film lubricants form a dry layer or coating that excludes moisture and reduces friction, binding, and wear. They often contain additives such as corrosion, oxidation, and rust inhibitors.
Floor coatings are tough protective layers used in applications where heavy surface wear or corrosion is expected. Typical applications include warehouses, chemical plants, and manufacturing floors.
Dielectric ceramics and substrates are electrical insulators with dielectric strength, dielectric constant and loss tangent values tailored for specific device applications.
Product Announcements
Topics of Interest
Aluminum silicate (lava, sillimate, mica) are ceramics containing or based on natural or synthetic aluminosilicate minerals such as sillamanite, fibrolite, or mica. Sillimanite, lava, fibrolite, and...
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Cordierite porcelain (2MgO•2Al2O3•5SiO2) also known simply as cordierite, is a magnesium aluminum silicate produced by fusing a mixture of talc, clay and aluminum oxide. Cordierite and cordierite...
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In an attempt to duplicate the findings at Ocean Road, an infrared inspection was performed on a 115/4.160KV transformer at one of our generating facilities. There are two station service transformers...
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Polishes used for floors, furniture and shoes can be supplied in solid form. These are are an emulsion of water with waxes such as paraffin wax, beeswax or carnauba wax, plus other additives such as...
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Characteristics of Bakelite Plates
MISUMI's Bakelite Plates are products which can be used as insulating plates for switch boards, controllers, breakers and other parts. Paper base type is available...
(Read More)
Technical Articles
Dielectric Strength for Insulators
- Charts and Graphs
Dielectric Breakdown Strength
- Ceramics and Glass Materials
Dielectric Dissipation Factor
- Electrical Distribution and Protection Equipment
Dielectric Current
- Electrical Distribution and Protection Equipment
Complex Sheer Rate
- Test and Measurement
Cone Penetration
- Test and Measurement
Asker C
- Test and Measurement
Coefficient of Thermal Conductivity
- Test and Measurement
Compression Set
- Test and Measurement
Magnetic Permeability
- Magnets
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