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GDDW-III Ground Network Earth Resistance Tester




I.General introduction
     1.Supplied with the new type different frequency AC power supply.
     2.It adopts microprocessor to control and process signal,which solve problems of the interference between test lead wires.
     3.It is used to test grounding resistance in different places such as substation ground network£¨4¦¸£©¡¢power station¡¢microwave station£¨10¦¸£©¡¢lightning rod£¨10¦¸£©and so on.
 
II.Technique index
Measuring range:0~15¦¸
Precision:3%
Measuring current output:AC<3A
Test wires:>¦Õ1.2mm2
Power supply:AC 220V 50Hz
Size:370*270*220mm3
Weight:5kg


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