1kV single core overhead insulated cable-Henan Yuelong Jinke Cable Co., Ltd.

About
Product
Service
News
Contact Us
CN

Home page

1kV single core overhead insulated cable

Overhead insulated cables with rated voltage of 1 kV are suitable for 1 kV and below overhead power lines, and can be used as fixed laying or service wire. Soft conductor copper core wire can also be used as transformer down lead.

keyword：

1kV single core overhead insulated cable

Category：

Overhead insulated cable

TEL：

+86 13663794466

Contact

Product description

With the increase of urban buildings and population density, many problems have been exposed in urban medium and low voltage bare line power supply, mainly manifested in There is not enough margin between buildings and overhead lines In shaded streets or green areas, overhead bare lines are prone to problems In thunderstorm and typhoon season, short circuit and electric shock accidents often occur In the area where low-voltage, medium-voltage and high-voltage overhead transmission lines meet, it is necessary to increase the pole height and widen the spacing, so as to increase the laying cost.

Overhead cables with insulation shall be used because they have obvious advantages in power supply system The cross arm distance can be shortened, the distance between conductors can be reduced, the inductance of overhead lines is smaller than that of the original system, and the voltage drop per unit length is reduced Other kinds of wires or telephone lines can be erected on the same pole when available, so that there is no need to repair a large number of trees, short circuit and electric shock accidents caused by typhoon, rainstorm and fallen trees will not occur, and the repair and maintenance costs are correspondingly reduced.It has high flexibility, can be used after being dismantled, and has lower cost than burying.

Operating conditions

Nominal voltage and frequency of the system：1kV，50Hz

Maximum operating voltage of the system：1.2kV

Usage characteristics

Long-term allowable working temperature of cable conductor

The long-term allowable working temperature of polyvinyl chloride (PVC) insulation and polyethylene (PE) insulation shall not exceed 70°C

The long-term allowable working temperature of cross-linked polyethylene (XLPE) insulation shall not exceed 90°C

The long-term allowable working temperature of high density polyethylene (HDPE) insulation shall not exceed 75°C

In case of short circuit (the longest duration shall not exceed 5 seconds), the maximum temperature of cable conductor shall not exceed

PVC insulated overhead cable：160℃

Polyethylene insulated overhead cable：130℃

The long-term allowable working temperature：250℃

High density polyethylene (HDPE) insulation of XLPE insulated overhead cable shall not exceed 150°C

Ambient temperature of laying

The ambient temperature of cable laying shall not be lower than -20°C

Allowable bending radius of cable

(1) Rated voltage 0.6/1 KV cable

If the outer diameter of cable is less than 25 mm, the allowable bending radius of cable shall not be less than 4D

If the outer diameter D of the cable is 25 mm or more, the allowable bending radius of cable shall not be less than 6D

(2) Cable with rated voltage U (Um) of 10 (12) kV

The allowable bending radius of single core cable shall not be less than 20 (D + d)

The allowable bending radius of multi-core cable shall not be less than 15 (D + d)

Where: D - the actual outer diameter (mm) of the cable; d - the actual outside diameter (mm) of the cable conductor.

The rated voltage is 1 kV. When the cable is used in an AC system, the rated voltage of the cable shall be at least equal to the rated voltage of the system. When the cable is used in a DC system, the rated voltage of the system shall not exceed 1.5 times the rated voltage of the cable. The working voltage of the system shall not be greater than 1.1 times the rated voltage of the system.

Product representation method

Code

Series code

Overhead line………………………………………………………………………………JK

Conductor code

Copper conductor (omitted)……………………………………………………………………T

Aluminum conductor………………………………………………………………………………L

Aluminum alloy conductor…………………………………………………………………………LH

Insulation code

XLPE insulation……………………………………………………………………YJ

Polyethylene insulation…………………………………………………………………………Y

High density polyethylene insulation…………………………………………………………………Y

PVC insulation………………………………………………………………………V

Characteristic code

Light thin insulation………………………………………………………/Q

The composition and arrangement order of product models are as follows

1kV single core overhead insulated cable

Product model and specification

Product model

Product model of overhead insulated cable with rated voltage of 1 kV

Model	Name	Scope of application and environment
JKV	Copper core PVC insulated overhead cable	Fixed laying of overhead line, service wire, etc.
JKLV	Aluminum core PVC insulated overhead cable
JKLHV	Aluminum alloy core PVC insulated overhead cable
JKY	Copper core polyethylene insulated overhead cable
JKLY	Aluminum core polyethylene insulated overhead cable
JKLHY	Aluminum alloy polyethylene insulated overhead cable
JKYJ	Copper core XLPE insulated overhead cable
JKLGYJ	XLPE insulated overhead cable with steel core aluminum stranded wire core
JKLYJ	Aluminum core XLPE insulated overhead cable
JKLHYJ	Aluminum alloy XLPE insulated overhead cable

Product specification

Rated voltage, nominal section of conductor section and number of cores of overhead insulated cable products with rated voltage of 1 kV

Model	Number of cores	Nominal section
JKV、JKLV、JKLHV、JKY、JKLY JKLHY、JKYJ、JKLYJ、JKLHYJ JKLV、JKLY、JKLYJ	1	10~300

Note: K is a neutral conductor with load. According to the requirements of power distribution engineering, the cross section is optionally matched with the main core.

Rated voltage, nominal section of conductor and number of cores of steel-cored aluminum stranded wire core overhead insulated cable with rated voltage of 1 kV

Model	Number of cores	Rated voltage/kV
		1
		Nominal section m㎡
JKLGV	1	10/2～240/40
JKLGY		10/2～240/40
JKLGYJ		10/2～240/40

Schematic Diagram of Product Structure

Overhead insulated cable with rated voltage of 0.6/1 kV

Main technical performance of products

The main technical performance parameters of cables are shown in the table 1～3

Table 1 Conductor Resistance and Cable Breaking Force

Nominal section of conductor	Conductor resistance at 20°C（Ω/km）≤				Cable tension(N)
	Copper core		Aluminum core	Aluminum alloy core	Cable tension(N)
	Hard copper	Soft copper	Aluminum core	Aluminum alloy core	Hard copper core	Aluminum core	Aluminum alloy core
10	1.906	1.83	3.08	3.574	3471	1650	2514
16	1.198	1.15	1.91	2.217	5486	2517	4022
25	0.749	0.727	1.20	1.393	8465	3762	6284
35	0.540	0.524	0.868	1.007	11731	5177	8800
50	0.399	0.387	0.641	0.744	16502	7011	12569
70	0.276	0.268	0.443	0.514	23461	10354	17596
95	0.199	0.193	0.320	0.371	31759	13727	23880
120	0.158	0.153	0.253	0.294	39911	17339	30164
150	0.128	0.124	0.206	0.239	49505	21033	37706
185	0.1021	0.0991	0.164	0.190	61846	26732	46503
240	0.0777	0.0754	0.125	0.145	79823	34679	60329
300	0.619	—	0.100	0.110	99788	43349	75411

Table 2 Overhead Insulated Cable with Rated Voltage of 0.6/1 kV

Nominal section of conductor	Minimum insulation resistance MC at rated working temperature (MΩ·km)
Nominal section of conductor	70℃	90℃
10	0.0067	0.67
16	0.0065	0.65
25	0.0054	0.54
35	0.0054	0.54
50	0.0046	0.46
70	0.0040	0.40
95	0.0039	0.39
120	0.0035	0.35
150	0.0035	0.35
185	0.0035	0.35
240	0.0034	0.34