Cable control cable

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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
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
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

Q:What is the difference between power supply and distribution: The two is the integration of power generation and power supply.

Q:What are the general requirements for working on distribution equipment?: When the high voltage line is not cut off, the person in charge of the work shall explain to the whole staff that there is electricity on the line and strengthen the monitoring

Q:Difference between distribution voltage and supply voltage: In general, the city substation will be reduced to 10KV 110KV to the electrical terminal.

Q:What is the power equipment in the distribution room?: 10kV and below voltage rating equipment, divided into high voltage distribution room and low-voltage distribution room

Q:CHINT group in the transmission and distribution equipment to do it?: not only is the previous low, now from energy production to transportation to use to control a complete solution.

Q:Transmission and transformation equipment: Because of the need to change the current in the process of transmission, so the current transfer is called power transmission.

Q:Rural high voltage transmission line equipment ownership: You do not want to what the transformer behind the high-voltage line,

Q:Main equipment of high voltage direct current transmission: The utility model comprises a converter, a converter transformer, a smoothing reactor, an AC filter, a DC lightning arrester and a control protection device.

Q:AC distribution equipment including distribution box: AC power distribution cabinet is used to distribute electricity, that is from the power transformer has three phase wires of a zero line of a ground load according to the following requirements to the distribution of electric energy

Q:What are the two power distribution equipment?: Such as measuring instrument, relay, switch, button operation and automatic control to provide some of these devices the energy supply device, signal equipment, computer equipment, and control cable (such as batteries, silicon rectifier, etc.).

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