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:High and low voltage distribution equipment
Low voltage distribution equipment: low voltage distribution panel, switch cabinet, switch board, lighting box, power box and motor control center.
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:Are electric wires and cables belong to distribution equipment?
Wire and cable for the transmission of electric (magnetic) energy, information and realize electromagnetic energy conversion of wire products, wire and cable general also referred to as the cable,
Q:What are the two power distribution equipment?
Primary equipment is the equipment used in the main system of transmission, transmission and distribution
Q:What is the role of transmission system and distribution system in power grid
power plant and the load center often separated by long distances, resulting in the problem of power transmission. The power is sent to the user only hydropower area can be fully utilized by high voltage transmission line
Q:Transmission and transformation equipment
Power transmission and transformation of the protection of the main transformer, relay protection devices, lightning arrester, etc..
Q:An introduction to the interpretation of flexible AC transmission systems
The parallel compensation device, such as static var compensator (SVC), thyristor controlled braking resistor (TCBR), static
Q:Transmission system and distribution system
Simply put, you can distinguish between the end of the cable to the use of electrical equipment (motor, power box) is the distribution system to the substation, transformer is the transmission system
Q:Main equipment of high voltage direct current transmission
At present, most of the converter adopts thyristor thyristor rectifier, which is composed of three phase bridge rectifier.
Q:DC transmission equipment
DC screen commonly known as intelligent maintenance free DC power supply screen, referred to as DC screen, the general model is GZDW.

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