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求购230KV XLPE电缆检测设备

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所在地: 山东 青岛市
有效期至: 长期有效
最后更新: 2010-10-06
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我司现在在国外有一个项目,客户需要一种230KV XLPE电缆检测设备,具体的检测要求如下:

1. AC VOLTAGE TEST

CABLE  SPECIFICATION:230 KV 400 sq.mm XLPE CU cable

1) Test Instrument

2) Procedure

By agreement between the purchaser and contractor, an A.C Test vlotage at power frequency in accordance with item a) or b) below.

Test for 5 min with phase-to-phase voltageof the system applied between the conductor and metallic screen/sheath.

Test for 24hours with the normal operating voltage of the system.

 The test voltage shall be A.C 230kV

2. DC HIGH VOLTAGE TEST

CABLE  SPECIFICATION:230 KV 400 sq.mm XLPE CU cable

Procedure : (1) In order to perform this test, HV test instrument has to be connected to the GIS switchgear  through a test bushing or direct to conductor sleeve of the outdoor type sealing end.

(2) The test bushing terminal is internally jumpered to the cable sealing end through test cable wires.

(3) The far end to the cable must be isolaated from the other parts of the system.  If it is a GIS Termination the cable chamber must be disconnected from the Bus-bar and filled with SF6 gas up to 4 bar.

(4) At the test end,  the leakage current have to be recorded in the respective  test sheet.

(5) The test should be repeated on all phases individually or all together in one time

The test voltage shall be D.C 320kV for 10minutes.  During this period no breakdown should occur.

 

 

ben-gd@163.com   13793158555

 

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