What is thermal shielding in nuclear power plant? All Questions › Category: Electrical Power Generation › What is thermal shielding in nuclear power plant? 0 Vote Up Vote Down CS Electrical And Electronics Staff asked 4 years ago I need short information. 1 Answers 0 Vote Up Vote Down CS Electrical And Electronics Staff answered 4 years ago To protect the person working near to the reactor from the harmful radiation. The reactor will be enclosed by steel and concrete. These will have the capacity of stopping harmful radiations to reach outside the reactor.