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 are the two power distribution equipment?: Primary equipment is the equipment used in the main system of transmission, transmission and distribution

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: 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: What is the power equipment in the distribution room?: The indoor power distribution room with low voltage load is called the power distribution room,

Q: What is the role of transmission system and distribution system in power grid: The distribution of power resources and power load centers in most countries in the world is inconsistent.

Q: Are electric wires and cables belong to distribution equipment?: Distribution equipment (Electrical Equipment) is in the electric power system of HV switchgear, generator, transformer, power circuit, circuit breaker, low voltage switch cabinet, distribution board, switch box, control box and other equipment collectively.

Q: Transmission lines are not electrical equipment?: Transmission lines in the power transmission project belongs to the carrier, belonging to the power cable category, should not be called equipment

Q: Main equipment of high voltage direct current transmission: It is composed of two or more converter bridges, which can realize the AC DC AC converter.

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.