Heat-shrink materials

 General information

The heat-shrink materials are obtained by cross-linking of polyethylene with chemical or radiation method. The shape of a product is formed at high temperatures and then solidified by cooling it to a room temperature. The product highly increases its cross dimensions during this process. By heating the product to temperature 120÷200 °C during assembling we cause its form to be melted and, owing its “shape memory”, it will attempt to return to its original shape, thus significantly decreasing its cross dimensions and tightly closing the object placed previously into it. This ensures electrical insulation, anticorrosion protection, improves aesthetics. The cross-linked polyethylene is highly resistant to stress corrosion, solvents, acid and base solutions, salts, petrol and oils. Certain products are covered inside with a glue that additionally increases their tightness and pressure resistance. They are used for insulating of terminals, joints, clamps, holders, bus-bars, wire bundle connecting and protection of various elements in electrical and electronic engineering as well as machinery. The longitudinal dimensions of the heat-shrink products increase (e.g. joints) or decrease (e.g. sleeves), which has been defined in the description of the individual groups of the products.



Shrinking directions

Shrinking should be carried out using an electric or gas heater (preferably with temperature control) or, taking precautions, by means of a burner with yellow flame so that the heating temperature is 120÷200 °C. The object to be shrunk must be previously cleaned with abrasive paper, degreased and then heated-up to approx. 60 °C. After slipping over the shrinkable element must be heated up beginning from the half of length, evenly and around, gradually moving the heater to the element ends and avoiding local overheating. Correct shrinkage has no folds, bulges, burns.


Heat-shrink Tybing

Type

Inside diameter
in delivery state
D
[mm]

Inside diameter in full shrinkage state
d
[mm]

Min. wall thickness in full shrinkage state
s
[mm]

Length
[mm]

Colour

Item No.

Thin wall tubing

RC 1,6/0,8

1,6

0,8

0,43

1000

black, red, blue, green, 

violet, yellow, white, brown, colourless, yellow-green

RC 2,4/1,2

2,4

1,2

0,51

RC 3,2/1,6

3,2

1,6

0,51

RC 4/1

4,0

1,0

1,00

RC 4,8/2,4

4,8

2,4

0,51

RC 6,4/3,2

6,4

3,2

0,64

RC 8/2

8,0

2,0

1,00

RC 9,5/4,8

9,5

4,8

0,64

RC 12,7/6,4

12,7

6,4

0,64

RC 19/9,5

19,0

9,5

0,76

RC 25,4/12,7

25,4

12,7

0,89

RC 38/19

38,0

19,0

1,02

RC 51/25,5

51,0

25,5

1,14

a.a. without yellow-green

RC 76/38

76,0

38,0

1,27

RC 102/51

102,0

51,0

1,40

Thickened tubing without adhesive

RP 9/3

9,0

3,0

2,00

1000

black

150-311110

RP 12/4

12,0

4,0

2,00

150-311120

RP 18/6

18,0

6,0

2,00

150-311130

RP 25/10

25,0

10,0

2,00

150-311140

RP 32/12

32,0

12,0

2,00

150-311145

RP 40/16

40,0

16,0

2,00

150-311150

RP 52/10

52,0

20,0

2,50

150-311160

RP 63/27

63,0

27,0

2,50

150-311170

RP 80/35

80,0

35,0

2,50

150-311180

RP 103/45

103,0

45,0

2,50

150-311190

RP 132/58

132,0

58,0

2,50

150-311200

Thickened tubing with adhesive

RPK 9/3

9,0

3,0

2,00

1000

black

150-321110

RPK 12/4

12,0

4,0

2,00

150-321120

RPK 18/6

18,0

6,0

2,00

150-321130

RPK 25/10

25,0

10,0

2,00

150-321140

RPK 32/12

32,0

12,0

2,00

150-321145

RPK 40/16

40,0

16,0

2,00

150-321150

RPK 52/20

52,0

20,0

2,50

150-321160

RPK 63/27

63,0

27,0

2,50

150-321170

RPK 80/35

80,0

35,0

2,50

150-321180

RPK 103/45

103,0

45,0

2,50

150-321190

RPK 132/58

132,0

58,0

2,50

150-321210

Other lengths on order.



Heat-shrink thin walled flexible tubing, type: RCEL

Application: Insulation and protection of cables and wires.

Technical data:

Material:

Cross-linked polyethylene, flame retardand

Recommended shrinking temperature

C]

+90

Ambient temperature

C]

-55 ¸ +125

Shrinkage factor

[%]

>50

Standard

UL224(E142415), CSA22.2(LR108142-1)


Type

Ø1
[mm]

Ø2
[mm]

g1
[mm]

g2
[mm]

Colour

Item No.
Black colour

RCEL 1,6/0,8

1,6

0,75

0,18

0,33

black, blue, red, green

150-303020

RCEL 2,4/1,2

2,4

1,25

0,25

0,44

black, blue, red, white, colourless

150-303030

RCEL 3,2/1,6

3,5

1,6

0,25

0,44

black, blue, red, white, green, yellow, yellow-green

150-303040

RCEL 4/2

4,0

2,0

0,25

0,44

black, blue, red, green, yellow, yellow-green

150-303050

RCEL 4,8/2,4

4,8

2,4

0,25

0,50

black, blue, red, yellow-green, colourless

150-303060

RCEL 6,4/3,2

6,4

3,2

0,25

0,56

black, blue, red, green, yellow-green, colourless

150-303070

RCEL 8/4

8,0

4,0

0,30

0,56

black, blue, yellow-green, colourless

150-303080

RCEL 9,5/4,8

9,5

4,8

0,30

0,56

black, blue, red, green, yellow-green, colourless

150-303090

RCEL 12,7/6,4

12,7

6,4

0,35

0,68

black, blue, red, yellow-green, colourless

150-303150

RCEL 19/9,5 19 9,5 0,40 0,78 black, blue, red, yellow-green, colourless 150-303160

RCEL 25,4/12,7

25,0

12,7

0,45

0,89

black, blue, red, yellow, yellow-green

150-303100

RCEL 38/19

38,0

19,0

0,50

1,10

black, blue, red, yellow, yellow-green

150-303110

RCEL 51/25,5

51,0

25,5

0,50

1,15

black, colourless

150-303120

RCEL 76/38

76,0

38,0

0,60

1,25

black, colourless

150-303130

Ø1 – inner diameter on delivery

Ø2 – inner diameter on full shrinkage

g1 – wall thickness on delivery

g2 – wall thickness on full shrinkage


Heat-shrink insulating tubes type: RIS

Application: As the insulation of busbars in switchboards. The RIS tubes enable to decrease the distances between phase busbars – and at the same the switchboard overall dimensions, protect from corrosion, help to avoid accidental short-circuits, increase personnel work safety

Type

RIS-1

RIS-36

Rated voltage 

[kV]

1

36

Material:

cross-linked polyethylene

cross-linked polyethylene

Volume resistivity 

[W*cm]

1,0 x 1015

4,3 x 1014

Dielectric strength

[kV/mm]

30

25

1-minute test voltage 

[kV AC]

42

42

Peak test voltage 

[kV]

75

75

Working temperature range 

[°C]

-55 ¸ +125

-55 ¸ +125

Max shrinking temperature 

[°C]

+200

+200


Type

Inner diameter on delivery
[mm]

Inner diameter on full shrinkage
[mm]

Wall thickness on full shrinkage
[mm]

Colour

Item No.

RIS-1 40/18Y

40

18

1,0

yellow

150-360010

RIS-1 40/18G

40

18

1,0

green

150-360020

RIS-1 40/18V

40

18

1,0

violet

150-360030

RIS-1 50/22Y

50

22

1,0

yellow

150-360040

RIS-1 50/22G

50

22

1,0

green

150-360050

RIS-1 50/22V

50

22

1,0

violet

150-360060

RIS-1 70/28Y

70

28

1,0

yellow

150-360070

RIS-1 70/28G

70

28

1,0

green

150-360080

RIS-1 70/28V

70

28

1,0

violet

150-360090

RIS-1 100/40Y

100

40

1,0

yellow

150-360100

RIS-1 100/40G

100

40

1,0

green

150-360110

RIS-1 100/40V

100

40

1,0

violet

150-360120

RIS-36 40/15R

40

15

4,0

red

150-360300

RIS-36 50/20R

50

20

4,5

red

150-360310

RIS-36 65/24R

65

24

4,5

red

150-360320

RIS-36 100/40R

100

40

4,5

red

150-360330




Technical-operating properties of heat shrinkable tubing

Requirements

Unit

Permissible working temperature

[°C]

-55÷+155

Shrinking temperature

[°C]

120÷200

Length changes after shrinking, max. (shrinkage)

[%]

10

Tensile strength, min.

[MPa]

12

Failure elongation, min.

[%]

200

Heat ageing resistance:

–168 h

–temperature

– tensile strength, min. of initial value

–failure elongation, min.

[°C]

[%]

[%]

136±2

70

100

Limited shrinkage test

no fractures or tears

Resistance to heat-shock, 4 h at temperature 175 °C

no fractures, deformations, dropping or flowing

Resistance to coiling at low temperature, 4 h, -55°C

no fractures on surface

Resistance to corrosion in contact with copper

–– 168 h, temperature of 136 °C

– failure elongation, min.

[%]

No pits, losses and black areas on a copper wire

100

Water absorbability, 4h, temperature of 23±2 °C

[%  w. ]

0,1÷0,5

Break-down strength

[kV/mm ]

16

Volume resistivity, min.

[?m]

1016

Dielectric permeability, min.

2,8

Inflammability test – only for RPS:

burning time, max.

[s]

no burning or glowing particles which ignite cotton wool are allowed

60


Heat-shrink caps

Used for sealing and protecting the ends of power and telecommunication cables having metal or plastic coats. The caps are inside coated with hot melt adhesive. Shrinking must be started from the blind end.

Working temperature: -20÷+70 °C.

Colour: black.

Type

Inside diameter in delivery state
D
[mm]

Inside diameter in full shrinkage state
d
[mm]

Rated wall thickness
in full shrinkage state

s
[mm]

Length after full shrinkage state
L
[mm]

Item No.

KTK 10/4

11,0

4,0

2,4

48,5

150-402100

KTK 14/4

14,5

4,0

2,4

48,5

150-402105

KTK 16/8

16,0

8,0

2,9

85,0

150-402110

KTK 18/6

18,0

6,0

2,1

15,0

150-402120

KTK 21/6

21,0

6,0

2,1

15,0

150-402130

KTK 23/8

23,0

7,9

2,9

85,0

150-402200

KTK 33/15

33,0

14,6

3,5

106,0

150-402300

KTK 40/15

40,0

14,6

3,5

106,0

150-402310

KTK 52/25

53,0

24,2

3,5

115,0

150-402400

KTK 70/25

70,0

24,2

3,5

115,0

150-402410

KTK 90/45

91,0

43,8

4,7

160,0

150-402500

KTK 120/45

121,0

43,8

4,7

160,0

150-402600


Heat-shrink distribution joints (breakouts), PT

Application: Branch joints for 0,6/1 kV power cables.

Material: Cross linked polyethylen LDPE, inner surface covered with hot-melt glue.

Colour: only black.

Type

Nr of cores

D [mm]

d [mm]

L
[mm]

l
[mm]

G
[mm]

g
[mm]

Item No.

1) min

2) max

1) min

2) max

1)

2)

1)

2)

PT 2 6-25

2

32

10

14

4

70

85

15

20

2,2

2,0

E05ME-01060100101

PT 3 16-35

3

37

14

15

4

80

100

15

21

2,2

2,0

E05ME-01060100201

PT 3 35-150

3

53

20

25

8

160

188

55

62

3,7

2,8

E05ME-01060100301

PT 4 6-35

4

41

16

14

4

80

100

15

23

2,4

1,7

E05ME-01060100601

PT 4 16-95

4

58

26

21

7

140

170

32

48

3,5

2,5

E05ME-01060100701

PT 4 25-150

4

70

29

25

9

155

190

35

48

3,7

2,6

E05ME-01060100801

PT 4 120-300

4

90

42

35

12,5

170

210

40

52

3,7

2,6

E05ME-01060100901

PT 4 120-400

4

110

44

40

14

175

208

40

51

3,7

2,6

E05ME-01060101001

PT 5 16-35

5

50

16

15

4

85

110

23

33

3,2

2,6

E05ME-01060101101

PT 5 35-70

5

57

17

15

4

75

110

23

33

3,2

2,6

E05ME-01060101201

PT 5 95-240

5

80

32

26

8

155

190

55

65

3,3

2,8

E05ME-01060101301

G –minimum wall thickness in the main part

g –minimum wall thickness in the branch part

1) – on delivery  2) –on shrinkage


Heat-shrink tapes

Intended for permanent and tight joining or repairing wires and other elements, as well as providing mechanical protection. TKT type is coated with hot melt adhesive.

Working temperature: -35÷+70 °C.

Breakdown strength, above: 18 kV/mm.

Tape shrinkage: 30÷40%.

Water absorption: max. 0,1%.

Tape length in roll: 30 m.

Type

Width
[mm]

Carrier thickness
[mm]

Adhesive layer thickness
[mm]

Item No.

Without glue

TT 25/05

25

0,5

-

E05ME-01040100101

TT 50/05

50

0,5

-

E05ME-01040100201

TT 100/05

100

0,5

-

E05ME-01040100301

With hot melt adhesive

TKT 25/05/03

25

0,5

0,3

E05ME-01040200101

TKT 50/05/03

50

0,5

0,3

E05ME-01040200201

TKT 100/05/03

100

0,5

0,3

E05ME-01040200301


Heat-shrink closures PLT

Application: Sealing single cable cores, branches and joints in power engineering and telecommunication.

Structure: The closures are made of cross linked polyethylene.The inner surface is covered witha hot-melt glue. The outer surface is covered with dots of a green dye which changes its colour into black when a suitable shrinking temperature is reached. The locking rail is made of a spring stainless steel.

Working temperature: -55÷+120 °C.

Shrinking temperature: >120 °C.

Dielectric strength: >10 kV/mm.

Type

Inside diameter
D
[mm]

Wall thickness after shrinkage
[mm]

Initial length
L
[mm]

Item No.

on delivery
(min.)

on shrinkage
(max.)

PLT 50/15

51

15

2,0

1000

150-404500

PLT 50/15-500 51 15 2,0 500 150-404495

PLT 75/22

83

22

2,0

1000

150-404510

PLT 75/22-500 83 22 2,0 500 150-404505

PLT 105/30

111

30

2,0

1000

150-404520

PLT 105/30-500 111 30 2,0 500 150-404515

PLT 122/38

134

38

2,0

1000

150-404530

PLT 122/38-500 134 38 2,0 500 150-404525

PLT 170/58

178

58

1,8

1000

150-404540

PLT 170/58-500 178 58 1,8 500 150-404535
PLT 210/55 216 55 1,8 1000 150-404550
PLT 210/55-500 216 55 1,8 500 150-404545


Straight joints without for 1, 3, 4 and 5 core 0,6/1 kV cables

Intended for joining and repairing cables with polymer insulation, YAKY, YAKXS, YKY, YKXS type. They enable insulation and protective coat to be reconstructed.


Set type

Core cross sect.
[mm2]

Hose for coat reconstruction

Hose for insulation reconstruction

PVC tape 10 m
up to 1 kV
 [pcs./set]

Abrasive cloth (250 x 30)
 [pcs./set]

Cotton rag
[pcs./set]

Item No.

RPK type

[pcs./set]

RPK type

 [pcs./set]

Sets for 1-core cables

JE-1 16-25

16÷25

18/6 x 400

4

18/6 x 200

4

1

2

2

150-405000

JE-1 35-70

35÷70

25/10 x 400

4

25/10 x 200

4

1

2

2

150-405010

JE-1 95

95

32/12 x 400

4

25/10 x 200

4

1

2

2

150-405020

JE-1 120-150

120÷150

40/16 x 400

4

32/12 x 250

4

1

3

3

150-405030

JE-1 185-240

180÷240

52/20 x 400

4

40/16 x 250

4

1

3

3

150-405040

Sets for 3-core cables

JE-3 16-25

16÷25

40/16 x 800

1

18/6 x 200

3

1

2

2

150-405050

JE-3 35-70

35÷70

52/20 x 800

1

25/10 x 200

3

1

2

2

150-405060

JE-3 95

95

63/27x800

1

25/10 x 200

3

1

2

2

150-405070

JE-3 120-150

120÷150

80/35x1000

1

32/12 x 250

3

1

3

3

150-405080

JE-3 185-240

180÷240

100/45x1000

1

40/16 x 250

3

1

3

3

150-405090

Sets for 4-core cables

JE-4 16-25

16÷25

40/16 x 800

1

18/6 x 200

4

1

2

2

150-405100

JE-4 35-70

35÷70

52/20 x 800

1

25/10 x 200

4

1

2

2

150-405110

JE-4 95

95

63/27 x 800

1

25/10 x 200

4

1

2

2

150-405120

JE-4 120-150

120÷150

80/35 x 1000

1

32/12 x 250

4

1

3

3

150-405130

JE-4 185-240

180÷240

100/45 x 1000

1

40/16 x 250

4

1

3

3

150-405140

 Sets for 5-core cables

JE-5 16-25

16÷25

52/20 x 800

1

18/6 x 200

5

1

2

2

150-405200

JE-5 35-70

35÷70

63/27 x 800

1

25/10 x 200

5

1

2

2

150-405210

JE-5 95

95

80/35 x 800

1

25/10 x 200

5

1

2

2

150-405220

JE-5 120-150

120÷150

80/35 x 1000

1

32/12 x 250

5

1

3

3

150-405230

JE-5 185-240

180÷240

100/45 x 1000

1

40/16 x 250

5

1

3

3

150-405240

Note!

- The sets contents is subject to changes
- For straight joints we recommend terminals acc. to DIN: KDR, KRM (for Cu cores – Item No. 340-125...; 340-126...) and KRA, KDA (for Al cores – Item No. 350-125...; 350-100...).

Note!
The joints with new symbols JE are equivalent to those with old ZRM symbols, as shown in the table below.

Old symbol

New symbol

ZRM-1

JE-4 16-25

ZRM-2

JE-4 35-70

ZRM-3

JE-4 95

ZRM-4

JE-4 120-150

ZRM-5

JE-4 185-240

ZRMj-1

JE-1 16-25

ZRMj-2

JE-1 35-70

ZRMj-3

JE-1 95

ZRMj-4

JE-1 120-150

ZRMj-5

JE-1 185-240

Old symbol

New symbol

ZRMt-1

JE-3 16-25

ZRMt-2

JE-3 35-70

ZRMt-3

JE-3 95

ZRMt-4

JE-3 120-150

ZRMt-5

JE-3 185-240

ZRMp-1

JE-5 16-25

ZRMp-2

JE-5 35-70

ZRMp-3

JE-5 95

ZRMp-4

JE-5 120-150

ZRMp-5

JE-5 185-240



0,6/1 kV heat-shrink terminations types: TE-4

Application: Connecting low voltage cables of polymeric insulation to power devices or overhead power lines. The terminations are offered as sets containing: pieces of thickened heat-shrink tubes with hot-melt glue (RPK type), heat-shrink breakouts (PT type) and auxilliary materials (CHC-1 cleaning tissues, TO insulating tapes, abrasive cloth), packed in polyethylene bags. The terminations are manufactured of the same materials as JE cable joints (technical opinion nr IEn EWP-444/2005).


Type

Nr of cores

Core cross sections
[mm2]

Item No.

TE-4 16-35

4

16¸35

150-406310

TE-4 50-70

4

50¸70

150-406320

TE-4 95-120

4

95¸120

150-406330

TE-4 150-240

4

150¸240

150-406340

Note!

We recommend the following cable lugs for the terminations:

- For Cu cores: KDR (DIN-compatible), KRM (longitudinally sealed).
- For Al cores: KDA (DIN-compatible), KRA (longitudinally sealed).


Cleaning tissues typ CHC-1

Application: To remove dirt, especially grease, from cable insulation and coating as well as from inner surfaces of cable lugs and connectors. It results in decreasing transient resistance between cable cores and lugs or connectors as well as better adhesion between cable insulation and heat-shrink tubes. The tissues are the standard accesories of 0,6/1kV heat-shrink cable joints offered by Ergom.

Tissue dimensions

 [mm]

190x190

Unit package dimensions [mm] 80x75x3
Unit packing weight [g] 3,7
Bulk package [szt.] 10 100

Item No.

-

470-100005

470-100010


2008-03-19