Fusion Cable Intermediate Joints
Product Overview
The fusion type intermediate joint is not an accessory. It is based on the original structure of the connected cable. The cable and cable connection is realized through the production process of the cable. It is mainly reflected in the fusion structure without stress cone and no movable interface. The main insulation and outer semi-conductor are completely restored according to the original structure of the cable, avoiding the retraction of the cable and the problems caused by the breath and the movable interface between the accessories and the cable due to different materials, so that the cable joint becomes complete. The concept of a new cable without joints, its electric field distribution and electrical stability have the same commonality with the original cable body, which highlights the great significance of the fusion-spliced intermediate joint for the high reliability of the electrical performance of the ultra-high voltage cable connection.
Type _ VRJJ-8.7/15KV | |||
No. | Main Technical Specifications | Typical Value | Standard |
1 | Power frequency voltage test | 39KV,5min No breakdown | No breakdown in 39KV,5min combined test |
2 | Partial discharge test at room temperature | 15KV, discharge not more than 10pC | Under 15KV voltage, Yellow phase background noise 1.9pC. Measured 1.9pC; Green phase background noise 1.9pC, measured 1.9pC; Red phase background noise 1.9pC, measured 1.9pC. |
3 | Impulse voltage test at high temperature | 95KV, Positive and negative polarity 10 times each | 95kV. Positive and negative polarities are 10 times each, and each phase of the combined sample is not broken down |
4 | Constant pressure load cycle test | Heated to 95℃-100℃ at 22kV voltage and conductor temperature. 30 cycles in air, 30 cycles in water, no breakdown | At 22KV voltage and conductor temperature heated to 95°C-100°C. 30 cycles in air, 30 cycles in water, combined test, no breakdown of samples |
5 | Partial discharge test at high temperature | 15KV, discharge not more than 10pC | Under 15KV voltage, Yellow phase background noise 1.7pC. Measured 1.7pC; Green phase background noise 1.7pC, measured 1.7pC; Red phase background noise 1.7pC, measured 1.7pC. |
6 | Impulse voltage test | 95KV, Positive and negative polarity 10 times each | 95KV. Positive and negative polarities are 10 times each, and each phase of the combined sample is not broken down |
7 | Rated current | Consistent with cable | Consistent with cable |
8 | Rated current | Consistent with cable | Consistent with cable |
Type _ VRJJ-12/20KV | |||
No. | Main Technical Specifications | Typical Value | Standard |
1 | Power frequency voltage test | 54KV,5min No breakdown | No breakdown in 54KV,5min combined test |
2 | Partial discharge test at room temperature | 20KV, discharge not more than 10pC | Under 20KV voltage, Yellow phase background noise 1.9pC. Measured 1.9pC; Green phase background noise 1.9pC, measured 1.9pC; Red phase background noise 1.9pC, measured 1.9pC. |
3 | Impulse voltage test at high temperature | 125KV, Positive and negative polarity 10 times each | 125kV. Positive and negative polarities are 10 times each, and each phase of the combined sample is not broken down |
4 | Constant pressure load cycle test | Heated to 95℃-100℃ at 30kV voltage and conductor temperature. 30 cycles in air, 30 cycles in water, no breakdown | At 30KV voltage and conductor temperature heated to 95°C-100°C. 30 cycles in air, 30 cycles in water, combined test, no breakdown of samples |
5 | Partial discharge test at high temperature | 20KV, discharge not more than 10pC | Under 20KV voltage, Yellow phase background noise 1.7pC. Measured 1.7pC; Green phase background noise 1.7pC, measured 1.7pC; Red phase background noise 1.7pC, measured 1.7pC. |
6 | Impulse voltage test | 125KV, Positive and negative polarity 10 times each | 125KV. Positive and negative polarities are 10 times each, and each phase of the combined sample is not broken down |
7 | Rated current | Consistent with cable | Consistent with cable |
8 | Rated current | Consistent with cable | Consistent with cable |
Type _ VRJJ-18/20KV | |||
No. | Main Technical Specifications | Typical Value | Standard |
1 | Power frequency voltage test | 81KV,5min No breakdown | No breakdown in 81KV,5min combined test |
2 | Partial discharge test at room temperature | 30KV, discharge not more than 10pC | Under 30KV voltage, Yellow phase background noise 1.9pC. Measured 1.9pC; Green phase background noise 1.9pC, measured 1.9pC; Red phase background noise 1.9pC, measured 1.9pC. |
3 | Impulse voltage test at high temperature | 170KV, Positive and negative polarity 10 times each | 170kV. Positive and negative polarities are 10 times each, and each phase of the combined sample is not broken down |
4 | Constant pressure load cycle test | Heated to 95℃-100℃ at 45kV voltage and conductor temperature. 30 cycles in air, 30 cycles in water, no breakdown | At 45KV voltage and conductor temperature heated to 95°C-100°C. 30 cycles in air, 30 cycles in water, combined test, no breakdown of samples |
5 | Partial discharge test at high temperature | 30KV, discharge not more than 10pC | Under 30KV voltage, Yellow phase background noise 1.7pC. Measured 1.7pC; Green phase background noise 1.7pC, measured 1.7pC; Red phase background noise 1.7pC, measured 1.7pC. |
6 | Impulse voltage test | 170KV, Positive and negative polarity 10 times each | 170KV. Positive and negative polarities are 10 times each, and each phase of the combined sample is not broken down |
7 | Rated current | Consistent with cable | Consistent with cable |
8 | Rated current | Consistent with cable | Consistent with cable |
Type _ VRJJ-26/35KV | |||
No. | Main Technical Specifications | Typical Value | Standard |
1 | Power frequency voltage test | 117KV,5min No breakdown | No breakdown in 117KV,5min combined test |
2 | Partial discharge test at room temperature | 45KV, discharge not more than 10pC | Under 45KV voltage, Yellow phase background noise 1.9pC. Measured 1.9pC; Green phase background noise 1.9pC, measured 1.9pC; Red phase background noise 1.9pC, measured 1.9pC. |
3 | Impulse voltage test at high temperature | 200KV, Positive and negative polarity 10 times each | 200kV. Positive and negative polarities are 10 times each, and each phase of the combined sample is not broken down |
4 | Constant pressure load cycle test | Heated to 95℃-100℃ at 65kV voltage and conductor temperature. 30 cycles in air, 30 cycles in water, no breakdown | At 65KV voltage and conductor temperature heated to 95°C-100°C. 30 cycles in air, 30 cycles in water, combined test, no breakdown of samples |
5 | Partial discharge test at high temperature | 45KV, discharge not more than 10pC | Under 45KV voltage, Yellow phase background noise 1.7pC. Measured 1.7pC; Green phase background noise 1.7pC, measured 1.7pC; Red phase background noise 1.7pC, measured 1.7pC. |
6 | Impulse voltage test | 200KV, Positive and negative polarity 10 times each | 20KV. Positive and negative polarities are 10 times each, and each phase of the combined sample is not broken down |
7 | Rated current | Consistent with cable | Consistent with cable |
8 | Rated current | Consistent with cable | Consistent with cable |
Production Ability• 8 professional production lines • 7900 square meters of workshop area • dozens of cable accessories production equipment | |
R&D Capabilities • many years of experience in R&D and customization of cable accessories, Professional R&D team • a number of professional technical engineers • mature professional technologies such as conductor link and electric field control. • Passed and obtained a number of qualification certifications | |
Honorary Certification • CE and SGS certification reports underwritten by PICC • High-tech Enterprise • Jiangsu cable accessories industry (top ten) • Jiangsu energy saving and environmental protection products |
Provide reasonable and professional use and matching solutions according to customer needs. After signing the contract, a special person will be responsible for process follow-up, timely control the progress, and cooperate with logistics to ensure the smooth delivery of the order. Perfect after-sales guarantee system, 30-year warranty, manuals and professional installation instructions are provided at the same time |