Product Description

QOH*1 solid state decoupler

1      Product uses

Decoupler is a AC Interference protection product, which sets Embedded-type line flowing and surge protector in one.

It is mainly used in long-distance buried pipeline engineering. As following situations: high-tension transmission line tower and communication tower and their ground system which near the pipeline; public passage between high-tension transmission line and pipeline; cross of pipeline and transmission line or Electrified railway-parallel pipe; the installation of the decoupler can reduce the influence of DC, AC&stray current or thunder flow on the buried pipelines, also strengthen stability of pipeline cathodic protection potential.

2      Codes and Standards

—GB/T***3.1 Environmental testing - Part 2: Test methods -Tests A: Cold.

—GB/T***3.2 Environmental testing - Part 2: Test methods -Tests B: Dry heat.

一GB/T***3.3 Environmental testing for electric and electronic products - Part 2: Testing method - test Cab: Damp heat Steady state.

—GB/T***3.5 Environmental testing for electric and electronic products Part 2:Test methods Test Ea and guidance: Shock.

一GB/T***3.*0 Environmental testing for electric and electronic products - Part 2: Test methods Test FC and guidance: Vibration (Sinusoidal).

一GB****2 Metal-oxide surge arresters without gaps for a.c. Systems;

—GB***8 Degrees of protection provided by enclosure(IP code);

—GB ****2.1/1 EC ******1 Surge protective devices connected to low-voltage power distribution systems*-Part 1: Performance requirements and testing methods

一SY/T ***2 Standard for AC influence drainage protec tion of buried steel pipeline.

3      Main technological performance

3.1      Environmental parameter Operating environment: **5'tD~**5cC Relative humidity: *0%〜*0%RH

3.2      The insulation resistance between the terminals and the box should be not lessthan *0MQ.

3.3      The maximum lightning shock(8/*0 m s) current that the decoupler can be tolerated should be not less than **0KA.

3.4      The maximum fault current that the decoupler can be tolerated should be no less than ***0A.

3.5      The scope of the isolation voltage is-UN〜+UN，Allow the error is not more than 0.2UN. ( UN can be set according to the requirement of user.)

3.6      In the rated isolation voltage, the DC current leak shall be not more than 1mA.

3.7      In the rated Isolation Voltage, The AC(*0HZ) steady-state current should be not less than *5A.

3.8      DC steady-state current should be not less than 5A.

3.9      IP protection grade reaches IP*5.