Conveners
Applicability of Rules & Regulations
- Thomas Otto (CERN)
CERN defines and implements a Safety Policy that sets out the general principles governing safety at CERN. As an intergovernmental organisation, CERN further establishes its own Safety Rules as necessary for its proper functioning. In this process, it takes into account the laws and regulation of the Host States (France and Switzerland), EU regulations and directives, as well as...
The ISO/TC 220 « Cryogenic vessels » covers standardization in the field of insulated vessels (vacuum or non-vacuum) for the storage and the transport of refrigerated liquefied gases of class 2 of “Recommendations on the Transport of Dangerous Goods – Model regulations – of the United Nations”. In particular, it concerns the design of the vessels and their safety accessories, gas/materials...
SRF cavity development, as well as cryomodule design, plays a key role in the development of future accelerators, as demonstrated by CERN projects such as HL-LHC CRAB cavities in bulk niobium (and related cryomodule) and High Gradient cavities in bulk niobium (and related cryomodule). At CERN, the respect of Essential Safety requirements is demanded for all pressurized equipment, category...
CERN as an intergovernmental organization establishes its own Safety Rules as necessary for its proper functioning. In particular, the CERN General Safety Instruction for cryogenic equipment requires that cryogenic pressure equipment at CERN shall comply with the European Pressure Equipment Directive (PED). However, due to the particular features of some of the cryogenic equipment required for...
Spring related pressure relief valves, mounted at ambient temperature, are state of the art to protect cryogenic apparatuses and installations against excessive pressure.
However experiences shows limitations in applications on cryogenic pressure vessels: Set pressure varies in a wide range, unauthorized increase of set pressure, seat not tight etc.
Alternatively, in some applications,...
