Instrument Cave Fire Protection and Explosion Safety Fredrik

Instrument Cave – Fire Protection and Explosion Safety Fredrik Jörud Fire Protection Engineer European Spallation Source ERIC 2019 -02 -12

Background Fire and Explosion Safety Programme 2

Requirement is not only about evacuation 3

Each instrument is unique – it is foreseen that fire and explosion protection have to be adjusted to the actual circumstances 4

Automatic water suppression inside the instrument cave Metallic heads (or Cage protection) 5

Sprinkler water supply is prepared for in the instrument halls 6

Sprinkler pipe drawing 7

First responder unit needs to quickly identify position of fire or water leakage Water flow Flow alarm valve First Responder Unit 8

Automatic water suppression in office cubicles placed inside the instrument hall 9

Paraffin shielding 10

Specification on paraffin container 11

Paraffin fill holes on inside of instrument cave ! Automatic extinguishing system inside cave 12

Polyethylene shielding – fire rated cladding to protect ignition from external source 13

Explosion safety Keep flammables outside the cave ? HYDROGEN 14

Explosion safety Example on hydrogen bottle • Zone 1: 0. 5 m around Exhaust pipe 200 bar = radius 16 m connection valve • Zone 2: 1. 5 m outside zone 1. If the space has a floor area of less than 8 m 2, zone 2 is extended to include the entire compartment. 15