Existing single loop strain insulator iron tower cable draws lower beam, including pole body, upper cross arm and lower floor's cross arm, the top of pole body is arranged in to the upper strata cross arm, arranges the both sides cross arm towards the existing strain insulator tata body, is the V style of calligraphy, the below of upper cross arm is arranged in to lower floor's cross arm, and the both sides cross arm is arranged towards the existing strain insulator tata body to lower floor's cross arm, is the V style of calligraphy, install two I type cable termination on the cross arm of upper strata, install between upper cross arm and the lower floor's cross arm and foretell style of calligraphy cable termination. The beneficial effect of the utility model: 1 ) existing single loop strain insulator iron tower cable draws lower beam is fit for hugging closely the construction of strain insulator tower, only draws down through drawing the more lower conductor terminal of department, 2 )Realize that single loop T connects, cut -offs and multiple functions such as reconfiguration, 3 )Do not change and draw downside strain insulator tower atress, avoided the reconstruction of demolising of old tower, 4 )Compare with newly -built straight line, strain insulator tower, reduce construction cost by a wide margin, reduce area.