Low Voltage Cast Resin Straight Through Joint

COTRAN cast resin joint kits are reliable jointing solutions for intermediate connectors of wires and cables. The cast resins without filler are high quality, and fast setting resin for tough ambient conditions. Ideal for power cable accessories as insulation or as protective layer in case of MV joints. The products have the advantages of excellent waterproof performance, convenient installation, excellent electrical performance and long-term immersion in water.

Technical Properties

The properties of the two-component cast resins after mixing and full curing are as follows:

Test item

Requirement

Typical Value

Testing standard

Voltage test at

23℃

80℃

No breakdown at test voltage

20kV

10kV


>20kV

>10kV

DIN VDE 0291

Dielectric dissipation factor

23℃ and 50Hz

23℃ and 1kHz


max. 0.1

-


0.08

0.05

DIN VDE 0291

Relative permittivity

3℃ and 50Hz

23℃ and 1kHz


< 6

-


5

5.1

DIN VDE 0291

Tracking resistance

min. KA 3c

KA 3c

DIN VDE 0291

Selection table

Cast Resin Joints

L(mm)

H(mm)

D1(mm)

D2(mm)

Note

CRK-S1

202

36

8

26

Apply to 1- 4 cores cable,conductor cross-section of 1.5-300mm2

CRK-S2

260

47

16

32

CRK-S3

360

55

21

38

CRK-S4

400

70

26

41

CRK-S5

530

100

35

56

CRK-S6

700

125

47

74

Kit Components

Part

PCs

Transparent mould body

1

Connector spacer

1

Insulating tape

1

PUR resin kit  (2 chambers)

1 kit (2 chambers)

Abrasive paper

1

Installation instructions

1

Funnel (optional)

1

Connector (optional)

Provided on request

Storage

CRK-S cast resin joint kits should be stored in a humidity controlled storage (10°C to 40°C and < 75% relative humidity).

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