Nomex Aramid Paper----[[LIREN ELECTRICAL INSULATION MATERIALS]]

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MIKI Insulation Papers

MIKI insulation papers (Pressboard class 2, Coil Insulating paper Class 2 & LD-Board) are high grade insulation material with 100% wood pulp used for wide insulation field. Main Types:
　1. PB-2 (Pressboard Class 2): principal Applications: Electric motors, transformers, rings, flanges, spacers, gaskets, capacitors, etc, Available colors are brown, red, green.
　2. PI-2 (Coil Insulating Paper Class 2):Principal applications: Speaker coil paper, cable raping, capacitors, etc.
　3. LD-Board: This is a Non-pressed low density fiber paper. It is used when high density is not required.
　　Other insulation papers include "BASE DDP", wrinkling coil paper for transformers and "Senkaski" paper for Speaker coil.

TOYO Vulcanized Fibre

TOYO Vulcanized Fibre from Japan is a material manufactured by gelatinizing several plies of high purity cellulose papers. It has extremely high internal bond strength, and mechanically excellent punching, forming, machining and many other unique properties. TOYO proudly carries specialtygrades to comply any application required by users, such as water resistant grades, flame retardant grades, combination grades etc. in roll, sheet and coil. Main Types:
HB-77 : This fibre uses original cotton fibre sheets as its raw material. The available colors are red, white, gray and black. It is the general used fibre which can be used for motors, speakers and other electrical appliances. ＞＞＞ more
NF-77 : NF-77 is a UL listed flame retardant vulcanized fibre with good tracking rate, high ampere-arc, and hot wire ignition rate. It has almost the same workability as the standard grade, but can be easily flexed if slightly pre-heated. ＞＞＞ more
K-57 : K-57 is listed in Class E of Japan Electricity Regulation. It has an ideal incorporation of good workability of fibre and dimensional stability. ＞＞＞ more

Aramid Paper

Aramid Paper is a calendered insulation paper made from a synthetic aromatic polyamide polymer.
Aramid Paper offers high inherent dielectric strength, mechanical toughness, flexibility and resilience. It products can extend the life of electrical equipment, reduce premature failures and repairs, and act as a safeguard in unforeseen electrical stress situations.
LR-AP710 Aramid Paper is widely used in almost every known electrical insulation application for transformers, motors, coils, and wires.

Nomex ® Paper

Type 410
is the original form of Nomex ® paper, and is widely used in a majority of electrical equipment applications. It is produced in thicknesses from 0.05 to 0.76 mm (2 to 30 mil) with specific gravities from 0.7 to 1.2. As a calendered product, it has high inherent dielectric strength, mechanical toughness, flexibility and resilience. Nomex Type 410 is used in almost every known sheet insulation application. (Download PDF)
Type 411
is the uncalendered precursor of Nomex ® Type 410. It is available in thicknesses from 0.13 to 0.58 mm, (5 to 23 mil) with a specific gravity of 0.3 and correspondingly lower electrical and mechanical properties. It is used in applications such as motor phase insulation and transformer coil end filler, where high bulk and conformability are of prime importance along with increased impregnability and saturability. (Download PDF)
Type 414
is electrically and thermally similar to Nomex ® Type 410, but is calendered under different conditions which produce a strong, but more flexible and conformable sheet with an open surface. It is produced in thicknesses from 0.09 to 0.38 mm (3.4 to 15 mil) with specific gravities from 0.9 to 1.0. It is designed for use as slot insulation in hand-wound motors, for linear wrapping of wire and as main insulation of fluid-filled and dry-type transformers where conformability and impregnability are required. (Download PDF)
Type 418
Is produced by adding 50 percent mica platelets, intimately blended with the floc and fibrids during papermaking. It is available in thicknesses from 0.08 to 0.36 mm (3 to 14 mil) and is designed for high-voltage applications, including motor conductor and coil wrap, and transformer ground and layer insulation. Nomex ® Type 418 is a calendered product with high inherent dielectric strength of 30 to 40 kV/mm (760 to 1015 V/mil), but can also be readily impregnated with varnishes where this is desirable. Nomex ® Type 418 offers increased voltage endurance when compared to Nomex ® Type 410. (Download PDF)
Type 419
is the uncalendered precursor of Nomex ® Type 418. It is available in two thicknesses, 0.18 mm (7 mil) and 0.33 mm (13 mil), with a specific gravity of 0.5 for applications where conformance and saturability are required. (Download PDF)
Type E56
is a medium-density paper (specific gravity 0.7) produced in thicknesses from 0.13 to 0.51 mm (5 to 20 mil). This calendered paper has mechanical and electrical properties intermediate between Nomex ® Type 410 and Nomex ® Type 411. It offers a higher yield and therefore economically a more attractive solution in applications where it is not critical to use to the full extent the mechanical or electrical properties of Nomex ® Type 410. (Download PDF)

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