IS Grade P1

Transcription

1 IS Grade P1 Grade P1 IS Technical Description: These are Paper Based Laminated Bakelite sheets confirming to specification, as per IS:2036, Bakelite Sheets of Grade P1 have Excellent mechanical and adequate electrical properties. suitable for low tension non humid applications. Applications: Battery eliminator (transformer, switch gears and choke bobbins),tube light ends and chokes, Control panels, Condenser mountings, Drill back up and Drill entry. Thickness:Thickness of sheets ranges from 0.5 MM 50.0 MM. Size:Standard size of Bakelite sheets: 1220 x 1220mm (4 ft x 4 ft) or 2440mm x 1220mm (8ft x Tolerance: Bakelite Sheets are supplied as per tolerance specified in IS:2036. More closer tolerance can be met as per customers specific requirement. Colors: Available Bakelite sheet colors are natural brown, dark brown, black and gray. Technical Data for Grade P1 Properties Units Average Test Value As PerIS: Electrical Insulation Resistance Meg Ohms 25 1 afterimmersion in water for 24 hrs at 20 C Electrical Strength in Oil at 90 C Flat wise (3.0 mmthickness) Kv/ mm 3 - Edgewise (5.0 mm Thickness) Kv 5 - Mechanical Tensile strength kgcm² Flexural Strength / Cross Breaking Kg/cm² Min. strength Shear Strength Kg/cm² Min. Impact Strength (Edgewise Charpy KJ/m² method) Specific Gravity Water Absorption (Specimen size mm square) Thickness mm Maximum Value mg

2 Typical Value mg IS Grade P2 Grade P2 IS Technical Description: These are paper Based Laminated Bakelite Sheets confirming to specification as per IS:2036, GRADE P2. These Bakelite sheets Of Grade P2 have good Mechanical Properties and better Electrical Properties, than Grade P1 and are especially suitable for High voltage applications at power frequencies for Power Electrical Industry. P2 Grade Bakelite Sheets also posses high electric strength under oil and good electric strength in air under normal humid conditions. Applications : Transformer covers, C.B. handles and side frame, Distribution boards, Fuse holder base etc. Thickness : Thickness of Bakelite sheets ranges from 0.7 MM 50.0 MM. Size : Standard size of Bakelite sheets: 1220 x 1220mm (4 ft x 4 ft) or 2440mm x 1220mm (8ft x Tolerance : Bakelite Sheets are supplied as per tolerance specified in IS:2036. More closer tolerance can be met as per customers specific requirement. Colors : Available Bakelite sheet colors are natural brown, dark brown, black.. Technical Data for Grade P2 Properties Units Average Test Value As PerIS: Electrical Insulation Resistance Meg Ohms afterimmersion in water for 24 hrs at 20 C Electrical Strength in Oil at 90 C Flat wise (3.0 mmthickness) Kv/ mm Edgewise (12.7 mm Thickness) Kv Mechanical Tensile strength kgcm² Flexural Strength / Cross Breaking Kg/cm² Min. strength Shear Strength Kg/cm² Min.

3 Impact Strength (Edgewise Charpy KJ/m² method Specific Gravity Water Absorption (Specimen size mm square) Thickness mm Maximum Value mg Typical Value mg IS Grade P3 Grade P3 IS Technical Description : These are Paper Based Laminated Bakelite sheets confirming to specification, as per IS:2036.Bakelite sheet Grade P3 have excellent electrical and adequate mechanical properties. Low water absorption. Suitable for high-tension electrical application even under tropical conditions. P3 Grade Bakelite sheets can also be manufactured with additional layers of Melamine overlay surface at both the sides of the sheet which will provide excellent resistance to surface tracking and dry arcing. Applications : Transformer and choke bobbins for power electronics. Relay spacers, HV transformer tap changes, Grid covers, Selector Bank insulation, switch gear insulating panels, crane panels, etc. Thickness : Thickness of Bakelite sheets ranges from 0.9 MM 50.0 MM. Size : Standard size of Bakelite sheets: 1220 x 1220mm (4 ft x 4 ft) or 2440mm x 1220mm (8ft x Tolerance : Sheets are supplied as per tolerance specified in IS:2036. More closer tolerance can be met as per customers specific requirement. Colors : Available sheet colors are natural brown. Technical Data for Grade P3 Bakelite Sheets Properties Units Average Test Electrical Insulation Resistance afterimmersion in water for 24 hrs Value As PerIS: Meg Ohms

4 at 20 C Electrical Strength in Oil at 90 C Flat wise (3.0 mmthickness) Kv/ mm Edgewise (5.0 mm Thickness) Kv Mechanical Tensile strength kgcm² Flexural Strength / Cross Breaking Kg/cm² Min. strength Shear Strength Kg/cm² Min. Impact Strength (Edgewise Charpy KJ/m² method Specific Gravity Water Absorption (Specimen size mm square) Thickness mm Maximum Value mg Typical Value mg IS Grade P4 Grade P4 IS Technical Description : These are Paper Based Laminated Bakelite sheets confirming to specification, as per IS:2036.Bakelite Sheet of Grade P4, have excellent electrical properties even under humid conditions. P4 Grade Bakelite sheets have very low water absorption and is suitable for high frequency applications. Applications : Meter fuses, Wafers for band change switch, Cross-bar Switches, Insulation in X- Ray equipment, etc. Thickness : Thickness of Bakelite sheets ranges from 0.5 MM 12.7 MM. Size : Standard size of Bakelite sheets: 1220 x 1220mm (4 ft x 4 ft) or 1220mm x 610 (4 ft x 2 ft) or 610mm x 610mm (2ft x 2ft) or 2440mm x 1220mm (8ft x Tolerance : Bakelite Sheets are supplied as per tolerance specified in IS:2036. More closer tolerance can be met as per customers specific requirement. Colors : Available Bakelite sheet colors are natural brown. Technical Data for Bakelite Sheet Grade P4 Properties Units Average Test Value As PerIS: 2036-

5 1995 Electrical Insulation Resistance Meg Ohms afterimmersion in water for 24 hrs at 20 C Electrical Strength in Oil at 90 C Flat wise (1.0 mm Thickness) Kv/ mm Edgewise (3.0 mm Thickness) Kv Mechanical Tensile strength kgfkm² Flexural Strength / Cross Breaking % Min. strength Shear Strength MPa Min. Impact Strength (Edgewise Charpy MPa 72 - method Specific Gravity Water Absorption (Specimen size mm square) Thickness mm Maximum Value mg Typical Value mg NEMA LI Grade X Grade: NEMA X (NEMA Std. LI ) Technical Description : Bakelite Sheets of this grade are Paper base Bakelite Sheets. Bakelite Sheets of this grade NEMA X is primarily intended for mechanical applications where electrical requirements are of secondary importance. It is suitable for electrical applications under oil or when dry, but high humidity conditions are to be avoided. It is not equal to fabric base grades of Bakelite in impact strength. Thickness : Thickness of Bakelite sheets ranges from 0.5 MM 50.0 MM. Size : Standard size of Bakelite sheets: 1220 x 1220mm (4 ft x 4 ft) or 1220mm x 610 (4 ft x 2 ft) or 610mm x 610mm (2ft x 2ft) or 2440mm x 1220mm (8ft x Tolerance : Bakelite Sheets are supplied as per tolerance specified in I. More closer tolerance can be met as per customers specific requirement. Colors : Available Bakelite sheet colors are natural brown, dark brown, black and gray. Tolerance : Tolerance of thickness is as per NEMA Standards.

6 Technical Data of Bakelite Sheet of NEMA Grade X Properties Units Average Test Electrical Insulation Resistance Meg Ohms 25 afterimmersion in water for 24 hrs at 20 C Electrical Strength in Oil at 90 C Flat wise (3.0 mmthickness) Kv/ mm 3 Edgewise (5.0 mm Thickness) Kv 5 Mechanical Tensile strength kgcm² 1050 Flexural Strength / Cross Breaking Kg/cm² 1450 strength Shear Strength Kg/cm² 900 Impact Strength (Edgewise Charpy KJ/m² 6.2 method Specific Gravity 1.38 Water Absorption (Specimen size mm square) Thickness mm Maximum Value mg Typical Value mg NEMA LI Grade XX Grade: NEMA XX (NEMA Std. LI ) Technical Description : Bakelite Sheets of Grade XX are paper base Phenolic sheets. These Bakelite Sheets posses good electrical properties and mechanical strength. These Bakelite Sheets Of NEMA XX Grade are suitable for electrical applications except where low losses or high humidity conditions are involved. They have good machining properties and are particularly adapted general electrical insulation, radio subpanels, switch bars, etc. Thickness : Thickness of Bakelitesheets ranges from 0.4 MM 50.0 MM. (on special request sheet more than 50mm also can be supplied) Size : Standard size of Bakelite sheets: 1220 x 1220mm (4 ft x 4 ft) or 2440mm x 1220mm (8ft x Colors : Available Bakelitesheet colors are natural brown, natural beige, dark brown and black.

7 Tolerance : Tolerance of thickness is as per NEMA Standards. Technical Data for Bakelite Sheet of NEMA Grade XX Properties Specification Units Condition Average Test Sample Under Test 0.5 thick PHYSICAL PROPERTIES Specific Gravity 1.34 A 1.36 Water Absorption (1/4 ) 0.85 % E24/ D24/23 MECHANICAL PROPERTIES Tensile strength L.W Psi A C.W Psi A Impact Strength Izod L.W 0.40 Ft-1b per E-48/ C.W 0.35 notch inch 0.45 Flexural Strength L.W Psi A C.W Psi Compressive Strength F.W Psi A E.W Psi A Hardness scale M-105 M-scale A M-108 ELECTRICAL PROPERTIES Break down voltage 40 Kv A 48 Edge wise (0.5 thick) 5 Kv D-48/50 9 Flat wise (0.125 thick) 360 V/mill A 410 Insulation Resistance 60 M.ohms C-96/35/ NEMA LI Grade XP Grade: NEMA XP (NEMA Std. LI ) Technical Description : Bakelite Sheets of Grade XP are paper base Phenolic sheets manufactured by using a special insulating Paper (a bleached Kraft Paper) as a filler which Provides excellent electrical Properties and Punching characteristics (hot punching). Grade XP Bakelite sheets are more flexible and serviceable under humid conditions than Grade X bakelite Sheets, but not quite as strong. They are mainly used where punching quality are of primary

8 importance as this Grade XP Bakelite facilitates intricate punching for electrical and mechanical purposes. Thickness : Thickness of Bakelite sheets ranges from 0.4 MM 80.0 MM. Size : Standard size of Bakelite sheets: 1220 x 1220mm (4 ft x 4 ft) or 2440mm x 1220mm (8ft x Colors : Available Bakelite sheet colors are natural brown and black. Tolerance : Tolerance of thickness is as per NEMA Standards. Technical Data for Bakelite Sheet of NEMA Grade XP Properties Specification Units Condition Average Test Sample Under Test thick PHYSICAL PROPERTIES Specific Gravity 1.33 A Water Absorption (1/4 ) 1.20 % E24/ D24/23 MECHANICAL PROPERTIES Tensile strength L.W Psi A C.W 9000 Psi A Shear Strength F.W - Psi A 959 E.W Flexural Strength L.W - Psi A C.W - Psi Compressive Strength F.W Psi A E.W - Psi A Hardness scale- M M-95 M-scale A 102 Heat Resistance For 120Min at 120 C NoChange ELECTRICAL PROPERTIES Break down voltage 40 Kv A 50 Edge wise (0.375 thick) - Kv D-48/50 11 Flat wise (0.125 thick) 320 V/mill A 350 Insulation Resistance - ohms C-96/35/

9 - ohms 2 x 10 7 NEMA LI Grade XXX Grade: NEMA XXX (NEMA Std. LI ) Technical Description : Bakelite Sheets of Grade XXX are paper base Phenolic sheets, suitable for radio frequency wave, under high humid application. These laminated Bakelite sheets have good electrical properties and moisture resistance with good dimensional stability. Thickness : Thickness of Bakelite sheets ranges from 0.4 MM 50.0 MM. Size : Standard size of Bakelite sheets: 1220 x 1220mm (4 ft x 4 ft) or 2440mm x 1220mm (8ft x Colors : Available bakelite sheet colors are natural brown, beige and black. Tolerance : Tolerance of thickness is as per NEMA Standards. Technical Data for Bakelite Sheet of NEMA Grade XXX Properties Specification Units Condition Average Test Sample Under Test 0.5 thick PHYSICAL PROPERTIES Specific Gravity 1.30 A 1.36 Water Absorption (1/4 ) 0.59 % E24/ D24/23 MECHANICAL PROPERTIES Tensile strength L.W Psi A C.W Psi A Impact Strength Izod L.W 0.40 Ft-1b per E-48/ C.W 0.35 notch inch 0.40 Flexural Strength L.W Psi A C.W Psi Hardness scale M-110 M-scale A M-112 Bond Strength 950 A 985

10 700 D48/ ELECTRICAL PROPERTIES Break down voltage 50 Kv A 60 Edge wise (0.5 thick) 6 Kv D-48/50 9 Flat wise (0.125 thick) 320 V/mill A 410 Insulation Resistance 1000 M.ohms C-96/35/