Test item

Standard request

Test results

Evaluation

1

1min power-frequency voltage test

105kV, 1min, no arc-over, no breakdown

105kV, 1min, no arc-over, no breakdown

up to standard

2

partial discharge test

39kV below, discharge capacity is no higher than 10pC

39kV discharge capacity of all phase 4.5pC, 4.6pC, 4.8pC

up to standard

3

load cycling test

heating to 90ºC～95ºC, each cycle 8h, 5h for heating and 3h for cooling, ternary cycle for 3 times

Standard request 3 times of load cycling test

assessment of test

4

partial discharge test(after load cycling test)

39kV below, discharge capacity is no higher than 10pC

39kV discharge capacity of all phase 4.6pC, 4.8pC, 5pC

up to standard

5

impulse voltage test

250kV, positive and negative polarity 各10次no arc-over, no breakdown

250kV positive and negative polarity 各10 times, no arc-over, no breakdown

up to standard

6

negative polarity 15min dc voltage test

-156kV, 15minno arc-over, no breakdown

-156kV, 15min, no arc-over, no breakdown

up to standard

7

4h power-frequency voltage test

104kV, 4h, no arc-over, no breakdown

104kV, 4h, no arc-over, no breakdown

up to standard

8

appearance inspection

no crack, no deformation

no crack, no deformation

up to standard

Note: Above test data is provided by Electric power industry electrical equipment quality inspection and test center.

Item

Cable specification
(mm2)

JRSY-35/1×1

35kV heat shrinkable
single-core cross-linked cable
coupling

50－120

JRSY-35/1×2

150－240

JRSY-35/1×3

300－400

JRSY-35/1×4

500－630

JRSY-35/3×1

35kV heat shrinkable
single-core cross-linked cable
coupling

50－120

JRSY-35/3×2

150－240

JRSY-35/3×3

300－400