Tender For supply , installation, testing and commissioning of third harmonic measuring arrangement (leakage current analyzer) of gapless lightning arrestors with accessories as per rdso tc no.rdso/2016/el/tc/0136 (rev.0) dated-08/08/2016. note: test certificate and calibration certificate should be submitted by the firm alongwith the material [ warranty period: 30 months after the date of delivery ]