Types of Materials	Other Properties
Mechanical Properties	Thickness Tolerances
Electrical Properties

	Epoxy Resin Glass Fabric
	- Type Hgw 2375 DIN 7735 - EN EP GC 21 Description The main advantages of this grade are the high electrical and mechanical characteristics. Exceptional interlayer bonding allows for ease of machining. These tubes comply with temperature class B (130°C). They can also be supplied in flame retardent performance complying with V-0 according to UL Subject 94.
	Epoxy Resin Glass Fabric
	- Type Hgw 2375.4 DIN 7735 - EN EP GC 22 Description This grade has a high heat resistance up to 155°C (temperature class F) and is mainly used as insulation tubing in transformers.

 The following properties are based according to DIN 7735and DIN EN 61212-3-1.

		Grade	Unit	Values
		DIN 53 452	N/mm²	300
		DIN 53 455	N/mm²	200
		DIN 53 454	N/mm²	150
	Modulus of Elasticity (informational)	DIN 53 457	N/mm²	18 x 10³
		Grade	Unit	Values
		DIN 53 452	N/mm²	300
		DIN 53 455	N/mm²	200
		DIN 53 454	N/mm²	150
	Modulus of Elasticity (informational)	DIN 53 457	N/mm²	18 x 10³

 DIN EN 61212 has been accepted between 1994 and 1996 and replaces DIN 7735.

 The following properties are based according to DIN 7735and DIN EN 61212-3-1.

		Grade	Unit	Values
	Resistance Between Plugs	DIN 53 482	Ohm
	1 Minute Test Voltage Parallel, 25 mm dist.	DIN 53 481	kV	40
	1 Minute Test Voltage Perpendicular, 3 mm dist.	DIN 53 481	kV	30
		DIN 53 483	-	0,05
	Tracking Resistanct CTI	IEC 112	-	18
		Grade	Unit	Values
	Resistance Between Plugs	DIN 53 482	Ohm
	1 Minute Test Voltage Parallel, 25 mm dist.	DIN 53 481	kV	40
	1 Minute Test Voltage Perpendicular, 3 mm dist.	DIN 53 481	kV	30
		DIN 53 483	-	0,05
	Tracking Resistanct CTI	IEC 112	-	18

 DIN EN 61212 has been accepted between 1994 and 1996 and replaces DIN 7735.

 The following properties are based according to DIN 7735and DIN EN 61212-3-1.

		Grade	Unit	Values
	Bulk Density	DIN 53 479	g/mm³	1.7 - 1.9
	Temperature Index	VDE 0304/2	°C	130
	Water Absorption	DIN 53 495	-	low
		Grade	Unit	Values
	Bulk Density	DIN 53 479	g/mm³	1.7 - 1.9
	Temperature Index	VDE 0304/2	°C	155
	Water Absorption	DIN 53 495	-	low

 DIN EN 61212 has been accepted between 1994 and 1996 and replaces DIN 7735.

Nominal Dimension (mm)	Inner Diameter		Nominal Dimension (mm)	Outer Diameter
20 - 30	0.15		23 - 34	0.20
31 - 50	0.20		35 - 80	0.30
51 - 70	0.25		81 - 153	0.50
71 - 100	0.30		The permissible deviation of the wall thickness for inner diameters of 150mm and more is 10% of the nominal value of the wall thickness.
101 - 140	0.50
141 - 200	0.70
201 - 500	1.00
500 and more	1.50

All data and values of this technical information have been ascertained with care. Taking into consideration the multiplicity of both usage conditions and the process and application technologies, the data and information supplied represent lead values of a non-binding nature so that no warranty claims can be derived therefrom. Above all, in addition to our general sales conditions, only agreements made in writing are regarded as being binding.