Ok thats great! Not sure if good practice guidelines are developed for your job position but I can tell from experience some issues we got. Torquing should be your best friend. IMHO miners should´t bring power cords, they should be hardwired to avoid issues that can rapidly become fire hazards.

Most recent issues we had were related to loose screws on DC busbar connecting PSU with hashboards. This needs to be doublechecked. Also I would recommend taking PSU out before powering up and controlling if the PSU is not shorted.

There is not much data center best practice being adopted in the mining data center industry. Quick and dirty and lots of silver-taping. I would suggest to look for best practice on structured cabling and assume infrastructure installations and equipment needs to be designed to accommodate future mining equipment generations. Air segregation is important, avoid at all cost hot air shortcircuits an bypass, take close attention on powered off miners sitting idle, they are hot air short circuit material.