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.

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product introduction

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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Subject : Low Voltage Cast Resin Straight Through Joint

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Applications：

suitable for American 200A electrical system, installed on the 200A interface of the high voltage outlet of American box substation, ring main cabinet, cable branch box, buried transformer and other electrical equipment to provide overvoltage protection for electrical equipment.

The product interface complies with the 200A casing design in the standard IEEE386.