Termination with porcelation insulator

Scope of application:

For cross linked polyethylene insulated power cables 240-3000mm².

Suitable for large-scale chemical industry, iron and steel, power substations, coastal areas.

Features:

• Made of epoxy fiberglass insulated tube covered with liquid silicone rubber, remarkable safety and explosion-proof.

• The stress cone is made of imported liquid silicone rubber injection molding, with a long and stable holding force and electric field uniformity.

• Composite sleeve for the size of the umbrella structure, the whole outside the formation of a cone, has a very good anti-fouling flash, Weather resistance, anti-leakage marks, anti-electro-etching and water-repellent ability.

• The terminal adopts multiple sealing structure to prevent water seepage and oil leakage during operation. water seepage and oil leakage phenomenon.

Type & Specification
Size /mm	38/66kV	50/66kV	64/110kV	76/132kV	127/220kV
H	900	900	1500	1500	2500
A	1110	1110	1935	1935	3100
B	1525	1525	2155	2155	3600
C	318	318	318	318	460
D	200	200	200	200	300
E	Φ22	Φ22	Φ22	Φ22	Φ32
Creepage Distance	≥2248	≥2248	≥3906	≥4495	≥7812

 

Structure
	1,wire clip (optional) 2,equalizing cover 3,core insulation  4,insulating oil   5,composite set  6,stress cone   7,fixed plate 8,support insulator     9,tail  pipe   10,cable

              All test classifications and codes:

No.#	Test Name	Code
1	Routine test	R
2	Sample test	S
3	Type test	T
4	Pre-qualification test	P
5	Additional test	A

The following routine tests are performed on stress cones, epoxy bushings of GIS terminals and prefabricated intermediate joints of each product at 66kV and above.

Item	Voltage
	38/66kV	50/66kV	64/110kV	76/132kV	127/220kV
Partial discharge	54kV,  no detectable local discharge over background	75kV,  no detectable local discharge over background	96kV,  no detectable local discharge over background	114kV,  no detectable local discharge over background	190kV,  no detectable local discharge over background
The power frequency withstand voltage	90kV/30min	125kV/30min	160kV/30min	190kV/30min	318kV/30min
Sealing	Seal fittings, porcelain bushings, composite bushings for 0.25±0.01MPa/1h, no leakage
	The epoxy casing was subjected to 0.6~0.7MPa/1h with no leakage.
Appearance	The products are free of damage, cracks, and other defects that may affect the quality and appearance of the products.

66-220kV Main Test Parameters

Item	Standard					Test Category	Product Category
	38/66kV	50/66kV	64/110kV	76/132kV	127/220kV		Porcelain Sleeve Terminal	Composite Sleeve Terminal	GIS terminal	Straight / Insulated Joint	flexible terminal
Sealing Fittings, Porcelain, Composite Sleeves	0.25±0.01MPa/1h, no leakage					R	✔	✔	✔	—	—
Epoxy Sleeve	0.6~0.7MPa/1h, no leakage
Partial discharge of prefabricated parts	54kV	75kV	96kV	114kV	190kV	R	✔	✔	✔	✔	✔
	Discharge test no more than background
Frequency withstand voltage of prefabricated parts	90kV	125kV	160kV	190kV	318kV	R	✔	✔	✔	✔	✔
	30min，no flashover, no breakdown
Partial discharge at room temperature	54kV	75kV	96kV	114kV	190kV	T	✔	✔	✔	✔	✔
	Discharge test no more than background
Thermal cycling voltage test	72kV	100kV	128kV	152kV	254kV	T	✔	✔	✔	✔	✔
	20 times cycles, no flashover, no breakdown
Partial discharge test at high temperature	54kV	75kV	96kV	114kV	190kV	T	✔	✔	✔	✔	✔
	Discharge test no more than background
Lightning impact test and subsequent frequency withstand voltage test	450kV		550kV	650kV	1050kV	T	✔	✔	✔	✔	✔
	10 times for each positive and negative polarity
	120kV		160kV	190kV	318kV
	15min, no flashover, no breakdown
Directly buried joint outer protective layer immersion voltage test	Two ends impact among the 60kV,an end of hit 30kV		Two ends impact among the 75kV,an end of hit 37.5kV		Two ends impact among the 95kV,an end of hit 47.5kV	T	—	—	—	✔	—
Sealing test after assembly of accessories	0.25±0.01MPa/1h, no leakage					T	✔	✔	✔	✔	✔
Outdoor terminal rain frequency voltage test	140kV		185kV		460kV	T	✔	✔	—	—	✔
	1min, no flashover, no breakdown
Pillar insulator voltage test	20kV/1min, no flashover, no breakdown					T	✔	✔	—	—	—
Radio interference test for outdoor terminals	61kV		81kV	140kV		S	✔	✔	—	—	✔
	1MHz radio interference, voltage ≤ 450μV			1MHz radio interference, voltage ≤ 500μV
The attachment sample inspection	Naked eye detection accessories such as cable system, no signs of degradation canaffect the normal operation of the system					T	✔	✔	✔	✔	✔

	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

Suzhou Jiuwei Electric Made Co.,Ltd Suzhou Jiuwei Electric Made Co., Ltd. integrates research and development, production and processing, wholesale, distribution, trade and service. It is adjacent to the Suzhou River, with convenient transportation and a complete and scientific quality management system. The company's main products are insulating materials and cable accessories, with a complete product system, among which the representative products are: cold and heat shrinkable cable accessories; fusion cable accessories, wrap-around cable accessories, explosion-proof boxes, heat shrinkable sleeves , heat shrinkable insulation protection box; at the same time, we can provide processing and packing services according to customer requirements.......