precautions after wedging relays. why take precaution

you will see in this video what is precautions after wedging Q118, QRS, Q50, Q100, QCON, QVSM please follow on khabri app khabri app link https://applink.khabri.app/783KMmg6xQ... MY EMAIL ID- dangi.om.cli@gmail.com checking of loco--- link    • checking of loco while taking charge.      • trouble shooting. fault P1P2 status BPFA a...      • trouble shooting.F0107P2 demanded speed ca...      • trouble shooting. F0104P1 catenery voltage...      • trouble shooting. 3 phase loco. F0105P1. T...      • trouble shooting F0103P1. 3 phase loco. fa...      • trouble shooting F0101P1 and F0102P1 in 3 ...   thanks for watching video. from S L Dangi/vadodara gujarat instagram link https://www.instagram.com/p/CIkp7vknY... my other channel    / @apnipyarimahansanskriti2080