[natmaka]

> PWRs can't explode like what happened in Chernobyl.

No, sadly.

PWR's sure can explode (due to hydrogen, vapor...).

The root causes will not be identical to Chernobyl's causes, and the containment will probably limit leaks for a while (theoretically at least a few days), but they sure can explode.

It also happened at Fukushima.

Some protective measures are PACs and containment, however nothing can guarantee that an explosion won't happen, nor that dangerous radionuclides won't leak outside the plant.

PAC: https://en.wikipedia.org/wiki/Passive_autocatalytic_recombin...

Containment: https://en.wikipedia.org/wiki/Containment_building