ABOUT US

/ABOUT US
ABOUT US 2018-10-09T07:26:20+00:00

About Bharat Insulations

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Since 11th April 1973, we introduce ourselves as manufacturers of “BHARAT BRAND” electrical insulating material viz. Fibreglass Sleeves ‘B’, ‘F’ & ‘H’ class, Cloth, Tapes, Cables, Polyester Binding Coil, Flexible  Fiberglass Lapped / Braided Heaters, Glass Braids, Vercon Glass Tubes etc. as per IS / BS & JIS Specifications.

We are accredited raw material suppliers of electrical insulating material to the electrical machinery manufacturers, auto/ancillary manufacturers and ceramic industries as per ISO: 9001 and maintaining the quality manual analysis as laid down in ISO – 9000. “BHARAT BRAND” products are regularly supplied to OEM’s to Electrical Machinery manufacturers, Automobiles and Ceramic Industries, Electricity Boards, Railways, Defence, NTPC, BHEL, Govt. Hydel Projects & other govt. departments all over the country.

“BHARAT BRAND”

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CLASSIFICATION OF INSULATING MATERIAL FOR ELECTRICAL MACHINERY & APPLIANCES

ON THE BASIS OF THERMAL STABILITY
(BSS 2757:56)

The endurance of material used for insulation of Electrical Machinery and Apparatus is affected by many factors such as Temperature, Electrical & Mechanical stresses, Vibration, Exposure to deleterious atmosphere and chemicals, Moisture & Dirt.

It is a fact that material included in a particular class may not with-stand for an unlimited time the temperature assigned to that class. They will however, withstand the temperature for long period of time with intervening period of lower temperature and so have adequate life in service.

The recognized class of insulating material and temperature assigned to them are as follows:

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Class of Insulation Temperature Range
Y 90oC
A 105oC
E 120oC
B 130oC
F 155oC
H 180oC
C above 180oC

‘‘BHARAT BRAND’’ Insulating Materials are manufactured for ‘Y’ ‘A’ ‘B’ ‘E’ ‘F’ & ‘H’ class insulation. These give the following main characteristics:

1. High dielectric strength and low power cost in case of varnished products.
2. High flexibility.
3. High Mechanical strength.
4. High heat resistant.
5. Resistance to humidity oil and solvents.
6. They have excellent impregnation.

“BHARAT BRAND” Insulating Materials are manufactured as per BSS, IS & JIS or as per customer’s specifications.

“BHARAT BRAND” VARNISHED INSULATING SLEEVING (TYPES -100)

(Mfd. as per IS: 3765 & BS: 2848 IS: 11654 (Part III) Sec 404

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“BHARAT BRAND” varnished insulating sleevings are braided either from silk yarn or ‘E’ grade glass Fibre yarn multiple impregnated with synthetic resin varnished. The varnishes used are of flexible and heat resisting type, made from high grade material.

Applications

“BHARAT BRAND” varnished insulating sleevings are used in winding of Motors, Transformers, Reactors Coils, Electrical Equipment for traction and for Radio & Electric Equipment Manufacturing. These are particularly useful where good electrical properties are required along with high mechanical and thermal stresses.

Dimensions & Form of supply

“BHARAT BRAND” varnished insulating sleevings are supplied in lengths of 1 meter in bundles of 100 metres. each nominal inside diameters available (mm)-  1, 1.5, 2, 2.5, 3, .5, 4, 5, 6, 8, 10, 12, 15, 20 and 25mm to 50mm .

Tolerance for inside diameter (mm) = + 0.2 to 0.5

Tolerance for wall thickness (mm) = + 0.25

Normal colour of the varnished sleeves is pale-golden yellow; other colours are available on request.

Typical Properties of Fibre Glass Varnished Sleevings

The mechanical and electrical properties of “BHARAT BRAND” varnished insulation sleevings conform to those specified in BSS: 2848(CLASS-1/13O T); IS 11654 (Part III) and DIN 40620 measured as per VED 0530 and VDE 00550.

PROOF VOLTAGE 50 Hz. 3.0 KVA for 1 minute at room temperature
1.5 KVA for 1 minute at operating temperature.
INSULATION RESISTANCE 1000 mega ohms under normal conditions.
ELONGATURE AT RUPTURE 15% at 23 Kg.
HEAT GLASS 120 Deg C 130 Deg C
MAXIMUM ACIDITY 7.0 mg. KOH/g.
BURNING TEST 45 to 60 seconds for 25mm test length.

“BHARAT BRAND” EMPIRE CLOTH & TAPES

(Mfd. as per IS: 3352/65)

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The insulating material being used for ‘Y’ and ’A’ class insulation. These are manufactured by varnishing of cotton base fabric with suitable oil base varnish which parts good flexibility an Electric Strength.

“BHARAT BRAND” Empire cloth is supplied in 5, 7 & 10 mils in straight cut:

“BHARAT BRAND” Empire Tapes are supplied in Brass cut ½ to 2” width in 5, 7, 9 & 11 mils thickness Bias Cut tapes are supplied as they have adequate extensibility. In order to achieve a winding which is free from piping a considerable winding pull is require which brings with it the danger of over stretching and consequently a severe drop in electric strength through cracking of varnish therefore Bias Cut tapes are used to avoid cracking.

“BHARAT BRAND” VARNISHED GLASS CLOTH & TAPES

(Mfd. as per IS: 419/ IS: 11297)

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The varnished Cloth is manufactured by varnishing of woven cloth made from electric Grade (Type E) low alkali glass fibre yarn free of defects of weaving, strains, other contaminations. Grease, wrinkles and other permanent distortion.

Tapes are supplied in specified width ½” to 2” in thickness 3,5,7,9 & 11 mils.

Both cloth and tapes are manufactured in ‘B”, ‘E’,’F’, & ‘H’ class straight or Bias Cut to BSS 419:1966. IS: 11297 or as per customer’s requirement.

“BHARAT BRAND” FIBREGLASS BRAIDED COMPENSATING CABLES

(Mfd. as per IS: 4685, IS 9968 Pt I/1988 & AS 1660 Part 3/1974)

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These cables are manufactured with copper stranded wire twice wounded opposite and overlapped with fibre glass yarn braided and impregnated with high thermal class insulating vanishes/ It stays flexible up to temperature range from -70oC to 200 o C. Resists moisture, chemicals fungus radiations, corona discharge and ozone attack and even manages to retain excellent dielectric when burnt.

DIELECTRIC STRENGTH 3500 VOLTS

Thermal class Insulation: ‘E’ and ‘H’ class 120oC and 180oC. These types of cables are supplied in all current ratings or as per customer specifications. These are generally used by manufacturers of hot ovens, furnaces; heating mantels and other heating applications like geysers, hot plates etc. Besides above these are used in motor and alternator internal connections.

These cables are also manufactured with Mylar film, glass lapped/braided & varnished flexible which have high dielectric strength. These are used as terminal lead wires in motor and connections replacing the old concept of use of neoprene insulated wires.

“BHARAT BRAND” REFRIGERATION WIRES

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Refrigeration wires are braided wires with copper conductors braided with lubricant free cellulose or polyester fibre as per customers’ requirements. The use being in hermetically sealed compressors of refrigerators and air conditioners, for joining the motor and coil connections to the fusite of plasmatic terminals of a hermetically air sealed compressors motor. The wires are in direct contact with refrigerant Freon 22 and compressor lubricating oil. The “BHARAT BRAND” refrigeration wires have no reaction with these and hence are best for use as lead wires. These are also known as DMD wires.

With these we also supply polyester (lubricant free) tying cords and sleeving.

“BHARAT BRAND” FIBREGLASS CORDS

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These are supplied as braided or twisted glass cords filled or unfilled used for binding grouped in electrical machinery.

Filled glass cords are find use in manufacturing of wire wound resistances used in auto and television Industry & for manufacturing flexible heaters. These are supplied as per customer’s specifications in round shape from 0.8mm diameter onward.

“BHARAT BRAND” BLACK ADHESIVE TAPE

(Mfd. As per IS: 2448)

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These are manufactured by using a suitable cotton cloth covered with suitable adhesive formulations. These tapes have very long shelf life, high breaking strength and good abrasion resistance. These are highly resistant to moisture used for electrical maintenance for slicing wire ends or insulating wires on Machinery or construction site.

 “BHARAT BRAND” WOVEN FIBREGLASS CLOTH

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“BHARAT BRAND” Fiberglass cloth in Unvarnished stage is manufactured with ‘E’ Grade Fiberglass Yarn (alkali free) of various twist and ply construction.  The cloth is available in plain, satin and twill weave as per requirements.  The cloth in Unvarnished Stage is available in different densities and is compatible with Epoxy, Polyester and vinyl resins.

The cloth is free from heirs ‘De-sized’ and is available after ‘Silicone Treatment’ for manufacturing of laminates and PTEF Cloth.  The various physical and chemical properties are as below (Specification IS: 5746 Part I BS: 3396 Part I & II):

  1. Alkali content of Yarn: Not more than 1%of alkali calculated as Sodium Oxide.
  2. Construction: Plain, Satin or twill weave with selvedge ends in open or close weave.
  3. Width: Available normally in 900 mm or 1000 mm width or as per customer’s requirement.
  4. Thickness: Generally available in 0.08 (3mil), 0.14(5mil), 0.18mm (7mil), 0.25mm (10mil) or above thickness.
  5. Density : Linear density of 11x1x2 to 22x2x3 tex in difference picks. Available in nominal weight 7 g/m.Sq.to 442g/m.Sq.
  6. Tensile: 14 N/mm width to 50 N/mm width.
  7. Heat Resistance: Can be used up to 250-260 Deg C in stressed or flexing conditions.
  8. Fire Resistance: Fabrics are incombustible in these conditions.
  9. Resistance to Chemicals: Fabrics are resistant to organic chemical solutions, assets and alkalis and unaffected in insects and vermin. Do not observe moisture nor dis-integrate in chemical composition
  10. Availability: Std. rolls in 1000 mm width in continuous length of 100 Mtr. or above.

“BHARAT BRAND” VERCON GLASS TUBE

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The Vercon Glass Tube is used in Capillary Tube Technology in the Ceramic Industry. The tube is manufactured with high temperature resistant glass yarn in round flexible form as per requirement of diameter in such a way that the compressed hot air when released at high pressure passes out easily to take out water from the precipitated plaster of paris filled in moulds.

“BHARAT BRAND” E’ CLASS UNVARNISHED GLASS BRAID FOR HEAT LOSS

AND FOR USE IN HOCKEY AND CRICKET BATS

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These are ‘E’ Glass Fibre Braid mfd. in any Diameter made of continuous twisted Glass Yarn ‘E’ Class containing not more than 1% of alkali calculated as Sodium Oxide of Medium Type in thickness of  0.75mm + – 0.2 mm ; no of  ends as per required. The residue on Ignition of Glass content is 99 %.

These Braids withstand Temp. up to 850 Deg C on continuous Rating. These are compatible with epoxy and polyester resins.

You may also send enquiries for the following materials:-

  1. GLASS BASED CHOPPED STRAND MAT EMULSION

  2. SILICON BONDED GLASS MICA GLASS BAKED TAPE 215:120

SEND ENQUIRIES TO:

a.n enterprises                                                       Bharat Insulations

59, DSIDC,                                                                            55, DSIDC,

New Wazirpur Industrial Complex,                                New Wazirpur Industrial Complex,

Delhi – 110052                                                              Delhi – 110052

Tele  : 011 – 27373045, 27373222                               Tele  : 011 – 27373045, 27373222

Fax   : 011 – 42474420                                                 Fax   : 011 – 42474420

E-mail: bharatinsulations@yahoo.com

anjumarora1975@yahoo.co.in

BHARAT BRAND

LIST OF PRODUCTS MANUFACTURED BY US

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DESCRIPTION                                               SPECN. NO.

FIBREGLASS SLEEVES ‘F’ CLASS                                 IS: 11654 (PART-III)

BLACK ADHESIVE TAPE                                                 IS: 2448(PART-I/1963)

UNVARNISHED F.G. TAPE                                               IS: 5352

PVC SELF ADHESIVE TAPES                                           IS: 2448/PART-II & IS: 7809

COTTON SEVEDGED TAPE                                              IS: 1923 & IS: 6117

VARNISHED F.G. TAPE / CLOTH                                    IS: 419

EMPIRE TAPES                                                                   IS: 3352/1965

EMPIRE SLEEVES                                                              IS: 3765

DOUBLE GLASS COVERED COPPER CONDUCTOR   IS: 4685

BAKELITE SHEET & TUBES                                            IS: 2036

F.G. LEAD WIRE & CONDUCTORS                                 IS: 4685

VERCON GLASS TUBE

NEOPRENE COATED GLASS FLAT

POLYESTER BINDING DORI

FLEXIBLE GLASS SPACE HEATER &

FLEXIBLE RESISTANCE WIRE WOUND

FIBREGLASS TWISTED AND FILLED CORDS

FLEXIBLE GLASS-MICA-GLASS BONDED TAPES

REFERIGERATION WIRES – DMD WIRE

FIBREGLASS GLASS BRAIDS