Tubes

Phenolic paper tubes

Characteristics: The tubes made from cellulose paper as a basis and phenolformaldehyde resin as a binder. This tubes are used like insulating and constructive material for various electrical equipment construction.

The tubes are produced from inside diameter 5,2 mm. The wall thickness is from 2 mm, the tube length is 1050 mm.

Machining: The tubes are machined by cutting, milling, drilling, turning.

Type acc. to EN-60893	Unit	PFCP 21	PFCP 22
Used name		Phenolic paper tube	Phenolic paper tube
Type according to DIN 7735		Hp 2065	Hp 2066
Type according to NEMA		X	XX
Reinforcement		paper	paper
Resin		phenol	phenol

MECHANICAL PROPERTIES
Flexural strength flatwise perpendicular to laminations (at 20°C)	MPa	160	150
Tensile strength	MPa	155	140
Cohesion of layers	MPa	170	200

DIELETRIC PROPERTIES
Dielectric strength perpendicular to layers in oil 90°C	kV/mm	-	13,3
Breakdown voltage parallel to laminations	kV	29	60
Dissipation factor tg
- at 50 Hz		-	-
- at 1 MHz		-	-
Permittivity at 1MHz		-	-
Insulation resistance after immersion in water	MΩ	2x10²	1

PHYSICAL PROPERTIES
Density	g/cm³	1,1 - 1,2	1,1 - 1,2
Temperature index (TI)		120	120
Absorbency (for 3 mm thickness)	mg/cm³	7,1	7,8
Flammability (category)		-	-

Phenolic cotton tubes

Characteristics: Rolled cotton phenolic rods are made from cotton fabric and phenolformaldehyde resin as a binder

Applications: They are suitable for the production of expansion joints, low-load bearing bearings, skeletons and transformer bodies, hydraulic discs, sealing and guiding rings.

Production dimensions: They are manufactured from an internal diameter of 5.2 mm, wall thickness min. 2.5 mm, length 650 mm - from the diameter of 5.2 to 25 mm, length 1350 mm - from the diameter of 25 mm. Other dimensions in agreement with the manufacturer.

Type acc. to EN-60893	Unit	PFCC22
Used name		Phenolic cotton tube
Type according to DIN 7735		Hgw2085
Type according to NEMA
Reinforcement		Phenolic cotton fabric
Resin		phenol

MECHANICAL PROPERTIES
Flexural strength flatwise perpendicular to laminations (at 20°C)	MPa	120
Compressive strength perpendicular to laminations	MPa	100
Cohesion of layers	MPa	100

DIELETRIC PROPERTIES
Dielectric strength perpendicular to layers in oil 90°C	kV/mm	2
Breakdown voltage parallel to laminations	KV	10
Dissipation factor tg
- at 50 Hz		-
- at 1 MHz		-
Permittivity at 1MHz		-
Comparative tracking index (CTI)	MΩ	6

PHYSICAL PROPERTIES
Density	g/cm³	1,15 - 1,35
Temperature index (TI)		120
Water absorption (for thickness 3 mm)	mg/cm³	10
Flammability (category)		-

Type according EN-60893

Unit

PFCP 21

PFCP 22

PFCC22

Used name

Phenolic paper tube

Phenolic cotton tube

Type according to DIN 7735

Hp 2065

Hp 2066

Hgw2085

Type according to NEMA

Reinforcement

paper

Phenolic cotton fabric

Resin

phenol

MECHANICAL PROPERTIES

Flexural strength flatwise perpendicular to laminations (at 20°C)

MPa

160

150

120

Compressive strength perpendicular to laminations

MPa

155

140

100

Cohesion of layers

MPa

170

200

100

DIELETRIC PROPERTIES

Dielectric strength perpendicular to layers in oil 90°C

kV/mm

13,3

Breakdown voltage parallel to laminations

Dissipation factor tg

- at 50 Hz

- at 1 MHz

Permittivity at 1MHz

Insulation resistance after immersion in water

MΩ

2x10²

PHYSICAL PROPERTIES

Density

g/cm³

1,1 - 1,2

1,15 - 1,35

Temperature index (TI)

120

Water absorption (for thickness 3 mm)

mg/cm³

7,1

7,8

Flammability (category)

Glass epoxy tubes

Characteristics: The glass epoxy tubes are made from modified glass fabric as a basis and epoxy resin as a binder. This tubes have very good mechanical and electrical properties at high huminidy and mechanical strenght at higher temperatures.

Dimensions: The tubes are produced from inside diameter 5,2 mm. The wall thickness is from 2 mm. The tube length is 1050 mm.

Type according EN-60893	Unit	EPGC21	EPGC22		EPGC23
Used name		Glass epoxy tube G10	Glass epoxy tube G11 155°	Glass epoxy tube TSE-180	Glass epoxy tube FR-4
Type according to DIN 7735		Hgw2375	Hgw2375.4
Type according to NEMA		G-10	G-11		FR-4
Reinforcement		glass fabric	glass fabric	glass fabric	glass fabric
Resin		epoxid	epoxid	epoxid	epoxid

MECHANICAL PROPERTIES
Flexural strength flatwise perpendicular to laminations (at 20°C)	MPa	360	460	400	410
Compressive strength perpendicular to laminations	MPa	175	225	350	-
Cohesion of layers	MPa	290	445	200	-

DIELETRIC PROPERTIES
Dielectric strength perpendicular to layers in oil 90°C	kV/mm	13	13	13	14,4
Breakdown voltage parallel to laminations	KV	60	60	60	60
Dissipation factor tg
- at 50 Hz		0,002	0,003	0,003	0,002
- at 1 MHz		0,04	0,04	-	0,04
Permittivity at 1MHz		5,2	5,2	5,2	5,2
Insulation resistance after immersion in water	MΩ	4x10⁴	8x10⁶	5,5x10⁴	3,6x10⁴

PHYSICAL PROPERTIES
Density	g/cm³	1,7 - 1,9	1,7 - 1,9	1,7 - 1,9	1,7 - 1,9
Temperature index (TI)		130	155	180	130
Water absorption (for thickness 3mm)	mg/cm³	0,6	0,5	1,5	0,6
Flammability (category)		-	-	-	V0

Note: The above values in the table are informative only. Technical sheets for individual products on request.

Tubes

Phenolic paper tubes

Phenolic cotton tubes

Glass epoxy tubes

AMPER 2024

ENERGETAB 2023