Cable control cable

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Product Description:

Specifications

high elastic silicone rubber
strong anti-tracking and radiation resistance

27.5kV XLPE cable indoor terminal

27.5kV XLPE cable outdoor terminal

27.5kV XLPE cable middle connector Features
1, reliable insulation: imported high elastic silicone rubber preform, always maintain the right radial pressure on the cable body accessories are installed, linked closely together, not for cable runs respiration and interface breakdown within the interface. Stress control part of the main insulation composite as a whole, to effectively solve the problem of electric cable outer shield the fracture stress concentration, to ensure that the insulation, the safe operation;
2, environmental adaptability: the product has a very strong anti-tracking and radiation resistance, excellent weather resistance, corrosion resistance, anti-foul, anti-aging advantages, suitable for high altitudes, cold areas, wet areas, salt fog areas heavily contaminated areas;
3, the selection of fit: the cold shrink structure, each specification is applicable to a variety of cable diameter;
Easy to install: all products are factory preforms, install and operate, no special training, saving time and effort. The shrink Installation solve cable accessories contraction is not tight or loaded into the phenomenon, reducing the quality accidents caused due to improper operation.

Technical parameters

27.5kV XLPE cable terminal

No.

Test item 1)

Test requirements

1

AC withstand voltage or DC voltage withstand

AC withstand

124kV, 5min or 110kV, 15min

110kV, 1min, rain 2)

Flashover, no breakdown

2

Partial discharge

At ambient temperature, 48kV, ≤ 5pC

3

Impulse voltage test in θt3 4) below)

250kV, ± 10 times

4

Constant pressure cycle test

(In air)

3 cycles of 5), in 69kV and θt environment

5

Partial discharge

48kV, at ambient temperature, and the θt environment, ≤ 5pC

6

Constant pressure cycle test

(In air)

60 cycles, in 69kV and θt environment

7

Soak Test 2)

10 cycles

8

Partial discharge

48kV, at ambient temperature, and the θt environment, ≤ 5pC

9

The short thermal stability (shielded and armored)

Cable shield ISC, short circuit, and no visible damage.

10

The short thermal stability (conductor)

Elevated to the cable conductor QSC, short circuit, and no visible damage

11

Short circuit dynamic stability

Id under short circuit, no visible damage

12

Impulse voltage test

250kV, ± 10 times

13

AC withstand

69kV, 15min

14

Wet test 6)

34.5kV, 300h, no flashover, no breakdown, tripping over three times, and no significant damage 7)

15

Salt Spray Test 2)

34.5kV, 1000h, flashover, without breakdown, the trip does not exceed three times, and no significant damage

27.5KV XLPE cable middle connector

No.

Test item 1)

Test requirements

1

AC withstand voltage or DC voltage withstand

124kV, 5min or 110kV, 15min

2

Partial discharge

At ambient temperature, 48kV, ≤ 5pC

3

Impulse voltage test

(In θt2) 3) below)

250kV, ± 10 times

4

Constant pressure cycle test

(In air)

3 cycles 4), in 69kV and θt environment

5

Partial discharge

48kV, at ambient temperature, and the θt environment, ≤ 5pC

6

Constant pressure cycle test

(In air)

30 cycles, in 69kV and θt environment

7

Constant pressure cycle test

(In water)

30 cycles, in 69kV and θt environment

8

Partial discharge

48kV, at ambient temperature, and the θt environment, ≤ 5pC

9

Short thermal stability

(Shielded and armored)

Cable shield ISC, short circuit, and no visible damage.

10

Short thermal stability

(Conductor)

Elevated to the cable conductor QSC, short circuit, and no visible damage

11

Short circuit dynamic stability

Id under short circuit, no visible damage

12

Impulse voltage test

250kV, ± 10 times

13

The middle joints machinery impact test 6)

The standard Appendix H.1

14

AC withstand

69kV, 15min


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Q:What is the transmission line, what is the power distribution equipment
As the name implies, the transmission is by the power plant or power center regional power grid (sending end), to the load center power grid (by the end) of the transmission of electricity; power distribution is to be distributed by the substation or bus power down.
Q:Rural high voltage transmission line equipment ownership
You do not want to what the transformer behind the high-voltage line,
Q:Transmission system and distribution system
Transmission system is based on the power supply to the same level or lower substation for the purpose of the general voltage level higher (35KV or more)
Q:What is the difference between power supply and distribution
Power supply and distribution is part of the use of general by the Architectural Design Institute of electrical professional
Q:High and low voltage distribution equipment
High voltage distribution equipment: high voltage fuse; high voltage isolation switch; high voltage load switch; high voltage circuit breaker.
Q:What is the role of transmission system and distribution system in power grid
Such as water resources are concentrated in the river basin water level drop larger place, fuel resources in coal, oil, gas.
Q:Transmission lines are not electrical equipment?
Transmission lines are not electrical equipment? The answer is: the device is a function of the assembly
Q:What is the power equipment in the distribution room?
High voltage distribution room generally refers to the 6kV - 10kV high voltage switch room; low voltage distribution room is generally refers to the 10kV or 35kV station with variable line 400V distribution room
Q:AC distribution equipment including distribution box
protection of the power supply system is between the power supply and the load are connected, disconnected, conversion
Q:Main equipment of high voltage direct current transmission
Converter also known as converter valve is the key equipment in the converter station, its function is to achieve rectification and inverter

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