demand on electrical machines with insulating liquids type d0 (dm 15-07-2014 technical rule for activity n.48)

[gigafra]

would be correct the following conclusion? thanks to those who will want to answer me.
"in the presence of a transformer with more than 45 cubic meters of insulating oil (type d0) there is the need to foresee within the substation area a fire system of automatic or manual shutdown with relative tank for collection of accidental oil spills, rainwater and, in the case of fire, of the waste water, for their subsequent treatment / disposal. to deepen and evaluate whether to adopt a water system or alternative systems with foam. the water/water mist system could allow the treatment and disposal on site (after authorization) of both wastewater and rainwater by means of water/oil filtration system. the system with foam or other water additives would entail the having to dispose of the waste water as waste, by means of autocisterne while the rainwater could be treated and disposed on site"

 

[TETRASTORE]

the water/water mist system could allow the treatment and disposal on site (after authorization) of both wastewater and rainwater by means of water/oil filtration system.

correct, in this case the tanks are sufficient for any oil spills.

the system with foam or other water additives would result in the need to dispose of the waste water as a waste, by means of autocisterne

today biodegradable foams free of fluoride are available so it is not necessary to treat effluents. However, you must check if the vvffs in the area where the plant is located have already transposed the directives indicated in point 1) of this document, or if they have different prescriptions for which it is necessary to carry out appropriate works of containment of the extinguishing foam mixed with water (external to the collection tanks) for the subsequent recovery and treatment.