CEN - PREN 17893
Thermal road vehicles - Safety standard for temperature-controlled systems using flammable refrigerants for the transport of goods - Requirements and risk analysis process
| Organization: | CEN |
| Publication Date: | 1 October 2022 |
| Status: | pending |
| Page Count: | 87 |
| ICS Code (Trucks and trailers): | 43.080.10 |
| ICS Code (Refrigerants and antifreezes): | 71.100.45 |
| ICS Code (Refrigerating technology): | 27.200 |
scope:
This document specifies requirements for the use of flammable refrigerants class A2L, A2 and A3 as defined in ISO 817 with regard to:
- design and construction (as far as not specified in EN 378-2);
- operation;
- in all anticipated operational modes and locations;
- including continuous idling during standstill;
- service and maintenance decommissioning;
for the investigation and mitigation of risk for thermally insulated means of transport, including: trucks, trailers, tanks, vans (light commercial vehicles), wagons, containers for land transport, small containers, packaging.
This document describes an Operational Mode Risk Assessment (OMRA), which uses methods such as Hazard and Operability Analysis (HAZOP), Failure Mode and Effects and Criticality Analysis (FMECA), or Fault Tree Analysis (FTA) or a combination of these methods;
The document specifies requirements:
- for the validation and consideration of possible safety concepts and protective devices within the OMRA process, including charge release tests, simulation, and function tests of the associated protective equipment;
- for tests related to the application;
using methodologies to achieve tolerable risk values.
Passenger air conditioning or equivalent mobile air conditioning systems covered in ISO 13043 and refrigerated containers on skeletal trailers conforming to ISO 20854 are excluded.
Document History
