The value of the response time of ESD systems contributes significantly to the individual risk of LNG refuelling stations. The default value for response times of full automatic ESD systems in a risk calculation is 120 seconds. The LNG industry claims much lower response times that will result in minimal risk distances. Lower response times can be used, if they have been adequately validated. RIVM has asked TNO to design a protocol that can be used by local competent authorities, who have to grant the operating permit, to check whether the ESD response time has adequately validated.
The protcol for ESD systems used at LNG refuelling stations will become availible at a later time