Protection class (bunker)

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With a protection class , bunkers are classified according to their protective effect against explosions as well as against biological, chemical or atomic contamination .

Germany

In the GDR , the protection classes for bunkers were regulated by an NVA classification. There were protection classes A – F. An additional protection class S with an even higher protective effect was never implemented. Structures of protection class A should withstand the pressure and explosive force of a nuclear weapon explosion of 25 kp / cm² , which corresponds approximately to the weapon effect of a concrete-breaking bomb with 2500 kg of explosives. The class A structures were erected in the open pit method as an underground monolith structure. Structures of protection class D should withstand the pressure and explosive force of a nuclear weapon explosion of 3 kp / cm², which corresponds approximately to the weapon effect of a concrete-breaking bomb with 250 kg of explosives.

class Conventional
bomb load		 Pressure wave on and in the ground
after a nuclear weapon detonation		 Examples
S. > 2500 kg > 25 kp / cm² unrealized
A. >2500 kg >25 kgf / cm² Main command post Ticino ( Volksmarine )
B. >1000 kg >10 kgf / cm² Bunker Garzau
C. > 0500 kg > 05 kgf / cm² Blumberg Office (TO 03)
D. > 0250 kg > 03 kgf / cm² Eichenthal bunker
E. > 0100 kg > 01 kgf / cm² Bunker of the 6th flotilla at Cape Arkona
F. Splinterguard Splinterguard

literature

  • Hans-Werner Deim, Hans Georg Kampe, Joachim Kampe, Joachim Schubert: The military security of the GDR in the Cold War. Contents, structures, bunkered command posts and systems , ISBN 3932566807
  • Paul Bergner: Order filigree. On the trail of interesting bunkers , Heinrich Jung-Verlagsgesellschaft mbH Zella-Mehlis / Meiningen, ISBN 978-3-930588-85-5

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