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Factory Address: Zhuzhuyuan Industrial Development Zone, Xindu District, Chengdu, Sichuan Province

Sales Department Address: 3103, Fulin Building, No. 388 Shuanglin Road, Chenghua District, Chengdu, Sichuan Province

Tel: +86-28-84369578 +86-28-84364618 +86-28-84388516

Fax: +86-28-84367498

Email: zcg@cd-huayi.com export@cd-huayi.com


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product name

Cold Shrink Straight Joint

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Selection table
Testing report
User report

HuYi cold shrink straight joints are made of specially formulated silicone rubber that offers excellentinsulation and moisture proof sealing for in-line cable connector systems or elbow to cable jacket applications.

The rubber sleeves are factory expanded and held over a removable, plastic rip core housing. Installs quickly and easily.Requirements: IEC 60502.4, IEEE 48, GB 12706.4

We supply cold shrink straight joints for 1KV, 8.7/10(8.7/15)KV, 12/20(18/20)KV, 26/35KV as below chart.

HuYi cold shrink straight joints are made of specially formulated silicone rubber that offers excellent

insulation and moisture proof sealing for in-line cable connector systems or elbow to cable jacket applications. Therubber sleeves are factory expanded and held over a removable, plastic rip core housing. Installs quickly and easily.

Requirements: IEC 60502.4, IEEE 48, GB 12706.4

We supply cold shrink straight joints for 1KV, 8.7/10(8.7/15)KV, 12/20(18/20)KV, 26/35KV as below chart.

1KV single core cold shrink straight joint
1KV two core cold shrink straight joint
Part No.
Conductor Size (mm²)
Cable Insulation O.D.(mm)
Part No.
Conductor Size (mm²)
Cable Insulation O.D.(mm)
LSJ-1/1.1
25-50
 
LSJ-1/2.1
25-50
 
LSJ-1/1.2
70-120
 
LSJ-1/2.2
70-120
 
LSJ-1/1.3
150-240
 
LSJ-1/2.3
150-240
 
LSJ-1/1.4
300-400
 
LSJ-1/2.4
300-400
 
1KV three core cold shrink straight joint
1KV four core cold shrink straight joint
Part No.
Conductor Size (mm²)
Cable Insulation O.D. (mm)
Part No.
Conductor Size (mm²)
Cable Insulation O.D. (mm)
LSJ-1/3.1
25-50
 
LSJ-1/4.1
25-50
 
LSJ-1/3.2
70-120
 
LSJ-1/4.2
70-120
 
LSJ-1/3.3
150-240
 
LSJ-1/4.3
150-240
 
LSJ-1/3.4
300-400
 
LSJ-1/4.4
300-400
 
1KV five core cold shrink straight joint
 
Part No.
Conductor Size (mm²)
Cable Insulation O.D. (mm)
LSJ-1/5.1
25-50
 
LSJ-1/5.2
70-120
 
LSJ-1/5.3
150-240
 
LSJ-1/5.4
300-400
 

 

15KV single core cold shrink straight joint
15KV three core cold shrink straight joint
Part No.
Conductor Size (mm²)
Cable Insulation O.D. (mm)
Part No.
Conductor Size (mm²)
Cable Insulation O.D. (mm)
JLY-15/1.1
25-50
15-21
JLY-15/3.1
25-50
15-21
JLY-15/1.2
70-120
19.5-25
JLY-15/3.2
70-120
19.5-25
JLY-15/1.3
150-240
24-32
JLY-15/3.3
150-240
24-32
JLY-15/1.4
300-400
27-36
JLY-15/3.4
300-400
27-36
JLY-15/1.5
500-800
37-46
JLY-15/3.5
500-630
37-46

20KV single core cold shrink straight joint
20KV three core cold shrink straight joint
Part No.
Conductor Size (mm²)
Cable Insulation O.D.(mm)
Part No.
Conductor Size (mm²)
Cable Insulation O.D.(mm)
JLY-20/1.1
35-50
19-24
JLY-20/3.1
35-50
19-24
JLY-20/1.2
70-120
22-29
JLY-20/3.2
70-120
22-29
JLY-20/1.3
150-240
26-33
JLY-20/3.3
150-240
26-33
JLY-20/1.4
300-400
32-39
JLY-20/3.4
300-400
32-39
JLY-20/1.5
500-630
37-43
JLY-20/3.5
500-630
37-43
35KV single core cold shrink straight joint
35KV three core cold shrink straight joint
Part No.
Conductor Size (mm²)
Cable Insulation O.D. (mm)
Part No.
Conductor Size (mm²)
Cable Insulation O.D. (mm)
JLY-35/1.1
50-120
27-38
JLY-35/3.1
50-120
27-38
JLY-35/1.2
150-240
34-46
JLY-35/3.2
150-240
34-46
JLY-35/1.3
300-500
40-50
JLY-35/3.3
300-500
40-50

Notice: Use cable insulation diameters for final sizing confirmation. Conductor sizes are only for reference.

Corresponding parameter set not found, please add it in property template of background

All the tests are implemented by CHINA NATIONAL CENTRE FOR QUALITY SUPERVISION AND TEST OF ELECTRIC WIRE AND CABLE and QUALITY INSPECTION AND TESTING CENTRE FOR EQUIPMENT OF ELECTRIC POWER P.R. OF CHINA.

1. Amazing performance of Huayi 35KV power cable accessories in the explosion accident of power cable

In July 2014, due to serious over voltage and over current, the 35KV power cable in Nanbu county exploded about 70 meters long. The steel armor was broken, the copper shield layer was exploded and insulation layer and outer sheath were burnt. The flame had to be put out by firemen. From the field photos, we can see the explosion holes and exploded shield layer in the cable. The power cable exploded about 70 meters long, however, the power cable accessories (straight joint) right connected to the exploded cables were perfectly in good shape without any damages. This straight joint was made by Chengdu Huayi, it showed astonishing high quality performance.

The power supply company said the power cable accessories sometimes exploded in their county. Since March, 2010 they replaced all the old 35kv power cable accessories to Huayi power cable accessories, after that there was no accident happened until this power cable explosion accident. However this time it’s the power cable exploded instead of accessories, it’s unbelievable. Huayi power cable accessories showed high reliability and high stability performance.

 

 

2. Waterproof test of power cable straight joint

User’s test report: waterproof test of power cable straight joint from Chengdu Huayi implemented by Administration Department of State Grid Chengdu Power Supply Company.

In order to realize underwater sealing performance of straight joint from Chengdu Huayi Heat Shrinkable Products Co., Ltd, we implemented withstand voltage test for straight joint before water immersion and withstand voltage test for straight joint underwater with depth of 1.7 meters for 6 months(from June 4, 2007 to December 12, 2007). The test results showed that the straight joint from Chengdu Huayi Heat Shrinkable Products Co., Ltd had excellent underwater sealing performance. The test report is shown below.

Note: indoor and outdoor terminations and straight joint were installed in the same power cable.

  3. Feedback report of power cable accessories

  In some instruction and maintenance projects in 2008, we used indoor and outdoor terminations and straight joints for 15(10) KV, 35 KV made by Chengdu Huayi Heat Shrinkable Products Co., Ltd. We consider that Huayi products are on high level of withstand voltage with nice forming appearance, all the technical specifications are qualified and all the products on network are in good condition. Chengdu Huayi Heat Shrinkable Products Co., Ltd is a reliable company with timely after service and meets customers’ different requirements. Huayi is an excellent partner with our station!

  Shaoyang Electric Power Bureau Transformer Substation

  4. Customer Satisfaction Questionnaire

  Below is our Customer Satisfaction Questionnaire from Anshun Power Supply Company. We supplied them 500 sets of 10 KV heat shrinkable indoor, outdoor terminations and straight joints for 500 sets. For the quality and delivery time, they circled “very satisfied”, for the price and others, they circled “satisfied”. They also circled “very satisfied” for feedback speed and service.

5. Feedback from From Panzhihua Wangyuan Power Project Company

From 2007 to 2008, we purchased and installed 10KV, 35KV cold and heat shrink power cable accessories from Chengdu Huayi Heat Shrinkable Products Co., Ltd, all the accessories are in network with good condition and no single one has problem. It’s very reliable and stable. We are very satisfied with the product quality and delivery time.

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