I have to say. That's a funny photo shop. Only sad it is my own cloud mining ;-(.
Anyway for all the stupid talk, it was NO overload on any cables or transformers. We Had 200% margins on the cables, No cheap or quick job. No density or heat problems. All sp30 and other miners where running cool and fine. No fire has started by the miners for sure, or any electrical problem in the setup.
Beautiful setup from the pictures. Sorry for your loss. Did you manage to find out what exactly started the fire? What about the 2 security guards? What is their version? What were they doing? It seems that there was a very slow response from them since everything got burned down. Were they playing Solitaire?