Quote from: danieleither on July 22, 2020, 12:36:52 AM

Electrical installation was basic. Supply is 3-phase 415V (3 x 240v). Voltage is excellent, around 245-246v consistently. The installation comprises a 200A Switch-fuse at source > 50mm 4-core SWA cable > 250A incomer & distribution board. Each miner has its own 20A breaker, with the power cable wired directly into the breaker. The Whatsminers draw ~3600 watts which is approximately 16A. For these I made custom power cables using 2.5mm flex and Bulgin C19 rewireable connectors. For the Antminers, I used off-the-shelf C13-C14 extension cables (1.0mm cable, rated 10A) and cut off the C14 connector, two for each miner, wired directly into one breaker. The cables run in plastic trunking to the distribution board.

I am very impressed with your electrical supply.

Very important note for you, off-the-shelf extension cables could be very risky. I only have two GPU based miners placed in my house. These beasts takes up 1800 watt of input. I have also connected them directly to the electrical grid meter (thats what they call it in India) from where direct electricity can be drawn. I have one breaker in between.

However, over the period of time C13-C14 do not support the heating. I had incidence where my whole extension board burnt to dust. I am not sure how common is tis problem but my experience was horrible.

I have switched to heavy duty wiring now for the room where I have installed miners.

But considering your safety checks, I see myself next to zero in my set up. Lolz. Tongue