Characteristics of insulating and sheath materials

designation

Weather

Halogen

Mechanical

Thermic

Materials

Abbreviations

VDE

Initial

code

Cold

Resistance

Weather

Resistance

Halogen

Free

Abrasion

Resista

nce

Corrosion

behavior

Shore

hardness

Elonga

tion

at break

%

Tensile

strength

N/mm²

Radiation

resistance

max

Mrad

Corrosive

gases in

case of

fire

Thermal

conduc-

tivity

WK^-1.m^-1

Thermoplastic

Polyvenilchloride

compounds

PVC

Y

Moderate-good

Medium

in black:

Good

No

0.4

Medium

70-95(A)

130-350

10-25

80

Hydrogen

Chloride

0.17

Heat resistance

90ºC

PVC

YW

Heat resistance

105

PVC

YW

Cold resistance

PVC

YK

Very good

Low density Polyethylene

LDPE

2Y

Good

Yes

0.1

Medium

43-50(D)

400-600

10-20

100

No

0.3

High density Polyethylene

HDPE

2Y

Good

60-63(D)

500-1000

20-30

0.4

Cross linked Polyethylene

XLPE

2X

Good

Medium

40-45(D)

300-400

12.5-20

0.3

Foamed Polyethylene

02Y

-

Conditional¹

-

-

-

350-450

8-12

0.25

Polystrole

PS

3Y

Moderate-good

Medium good

Yes

0.4

Good

35-50(D)

300-400

55-65

80

No

0.25

Polyamide

PA

4Y

Good

Good

1.0-1.5

Very good

-

50-170

50-60

10

No

0.23

Polypropylene

PP

9Y

Moderate

0.1

Medium

55-60(D)

300

20-35

0.19

Polyurethane

PUR

11Y

Very good

Very good

Yes²

1.5

Very good

70-100(A)

500-700

30-45

100(500)

0.25

Polyester Elastomer

TPE-E

(12Y)

Yes

1.5

Good

85(A)

70(D)

>300

30

10

0.5

Polyolefine Elastomer

TPE-O

55(A)

70(D)

20

10

1.5

Elastomer

Natural rubber Styrol butadiene rubber compounds

+NR

SBR

G

Very good

Moderate

No

1.0

Moderate

60-70(A)

300-600

5-10

100

No

-

Silicon rubber

SIR

2G

Good

Yes

40-80(A)

50

0.22

Ethylene propylene rubber compounds

EPR

3G

Good

Very good

65-85(A)

200-400

200

-

Ethylene vinylacetat copolymer compounds

EVA

4G

Good

70-80(A)

250-350

8-12

100

-

Polychloroprene compounds

CR

5G

Moderate-good

Very good

No

Medium

55-70(A)

400-700

10-20

50

Hydrogen

Chloride

-

Chlorsulfonated Polyethylene compounds

CSM

6G

Moderate

1.5

60-70(A)

350-600

-

High temp. material

Polyvinylidene fluoride Kynar/Dyflor

PVDF

10Y

Very good

Very good

NO

0.01

Very good

75-80(D)

150

50-80

10

Hydro-

fluoric

0.17

Ethylene Tetrafluor ethylene

ETFE

7Y

Very good

Very good

0.02

Very good

70-75(D)

150

40-50

10

Yes

0.24

Fluorine ethylene propylene

FEP

6Y

Very good

Very good

0.01

Very good

55-60(D)

250

15-25

1

Yes

0.26

Perfluoralkoxypolimeric

PFA

5YX

Very good

Very good

0.01

Very good

55-60(D)

250

25-30

0.1

Yes

0.21

Polytetrafluorethylene

PTFE

5Y

Very good

Very good

0.01

Very good

55-60(D)

50

80

0.1

Yes

0.26

Halogen free compounds

Halogen free polymer compounds

not

Cross-

Linked

H

Average

Medium

in black:

Good

Yes

0.2-1.5

Medium

65-95(A)

150-250

8-13

100

No

0.17

Halogen free polymer compounds

Cross-

Linked

HX

Medium

150-250

8-13

200

No

0.20

Thermic

Electrical

Designation

Heating value

H₀

MU.kg^-1

Oxygen

index

LOI

(%O₂)

Flame resistance

Melt temperature

+

Working temperature

Dielectric

loss

factor

tan&

Dielectric

constant

50Hz/20

Specific volume resistivity

Ohm.cm 20

Break

down

voltage

KV/mm 20

Density

g/cm³

Material

Abbreviation

VDE Initial

code

Short time

Permanent

17-25

23-42

Self

extinguishing

>140

+100

-30

+70

4×10^-2

To

1×10^-1

3.6-6

10¹³-10¹⁵

25

1.35-1.5

Polyvinylchloride

compounds

PVC

Y

Thermoplastic

16-22

>140

+120

-20

+90

4-6.5

10¹²-10¹⁵

25

1.3-1.5

Heat resistance 90ºC

PVC

YW

16-20

24-42

>140

+120

-20

+105

4.5-6.5

10¹²-10¹⁵

25

1.3-1.5

Heat resistance 105

PVC

YW

17-24

>140

+100

-40

+70

4.5-6.5

10¹²-10¹⁵

25

1.2-1.4

Cold resistance

PVC

YK

42-44

22

Flammable

105-110

+100

-50

+70

2×10^-4

2.3

10¹⁷

70

0.92-0.94

Low density Polyethylene

LDPE

2Y

130

+120

-50

+100

3×10^-4

2.3

10¹⁷

85

0.94-0.98

High density Polyethylene

HDPE

2Y

-

+100

-35

+90

2×10^-2

4-6

10¹²-10¹⁶

50

0.92

Cross linked Polyethylene

XLPE

2X

18-30

105

+100

-40

+70

5×10^-4

1.56

10¹⁷

30

0.65

Foamed Polyethylene

02Y

40-43

22

>120

+100

-50

+80

1×10^-4

2.5

10¹⁶

30

1.05

Polystrole

PS

3Y

27-31

22

210

+125

-60

+105

1×10^-3

To 2×10^-2

4

10¹⁵

30

1.02-1.1

Polyamide

PA

4Y

42-44

160

+140

-10

+100

4-10^-4

2.3-2.4

10¹⁶

75

0.91

Polypropylene

PP

9Y

20-26

20-26

150

+100

-55

+80

2.3×10^-2

4-7

10¹⁰-10¹²

20

1.15-1.2

Polyurethane

PUR

11Y

20-25

29

190

+140

-50

+100

1.8×10^-2

3.7-5.1

>10¹⁰

40

1.2-1.4

Polyester Elastomer

TPE-E

(12Y)

23-28

25

150

+130

2.7-3.6

>10¹⁴

30

0.89-1.0

Polyolefin Elastomer

TPE-O

21-25

22

Flammable

150

+120

-65

+60

1.9×10^-2

3-5

10¹²-10¹⁵

20

1.5-1.7

Natural rubber Styrol butadiene rubber compounds

NR

SBR

G

Elastomer

17-19

25-35

High flash point

-

+260

-60

+180

6×10^-3

3-4

10¹⁵

20

1.2-1.3

Silicon rubber

SIR

2G

21-25

22

Flammable

-

+160

-30

+90

3.4×10^-3

3-3.8

10¹⁴

20

1.3-1.55

Ethylene propylene rubber compounds

EPR

3G

19-23

-

+200

-30

+125

2×10^-2

5-6.5

10¹²

30

1.3-1.5

Ethylene vinylacetat copolymer compounds

EVA

4G

14-19

30-35

Self

extinguishing

-

+140

-40

+100

5×10^-2

6-8.5

10¹⁰

20

1.4-1.65

Polychloroprene compounds

CR

5G

19-23

+160

+140

-30

+80

2.8×10^-2

6-9

10¹²

25

1.3-1.6

Chlorsulfonated Polyethylene compounds

CSM

6G

15

40-45

Self

extinguishing

>170

+160

-40

+135

1.4×10^-2

7-9

10¹⁴

25

1.7-1.9

Polyvinylidene fluoride Kynar/Dyflor

PVDF

10Y

High temp.materials

14

30-35

Self

extinguishing

>265

+180

-100

+150

8×10^-4

2.6

10¹⁶

36

1.6-1.8

Ethylene Tetrafluor ethylene

ETFE

7Y

5

>95

Self

extinguishing

>225

+230

-100

+205

3×10^-4

2.1

10¹⁸

25

2.0-2.3

Fluorine ethylene propylene

FEP

6Y

5

>95

Self

extinguishing

>290

+280

-190

+260

3×10^-4

2.1

10¹⁸

25

2.0-2.3

Perfluro alkoxypolimeric

PFA

5YX

5

>95

Self

extinguishing

>325

+300

-190

+260

3×10^-4

2.1

10¹⁸

20

2.0-2.3

Polytetraflurorethylene

PTFE

5Y

17-22

40

Self

extinguishing

>130

+100

-30

+70

10^-3

3.4-5

10¹²-10¹⁴

25

1.4-1.6

Halogen free polymer compounds

not

Cross-

Linked

H

Halogen free compounds

16-25

40

self extin- guishing

-

+150

-30

+90

10^-3To10^-2

3.4-5

10¹³-10¹⁴

25

1.4-1.6

Halogen free polymer compounds

Cross-

Linked

HX