道路车辆液化石油气燃料系统部件第5部分:燃料选择系统和电气装置

[中文适用范围]： 本文件规定了液化石油气燃料组件（燃料选择系统和电气设备，用于 ISO 3833 定义的机动车辆类型）的一般要求和定义。它还提供了一般设计原则，并规定了说明和标记的要求。本文件适用于根据 ISO 9162 使用气体燃料的车辆（单燃料、双燃料或双燃料应用）。它不适用于以下设备：a) 燃料容器；b) 固定式燃气发动机；c) 容器安装硬件；d) 加油容器。人们认识到，可以检查本文未具体涉及的其他组件是否符合 ISO 20766 系列任何适用部分的标准，包括对适当的功能测试进行测试。除非另有规定，本文件中对压力的所有引用均视为表压。本文件适用于工作压力在 110 kPa（20°C 时富含丁烷）和 840 kPa（20°C 时富含丙烷）范围内的设备（本文件中下文提及）。可以通过按适当的系数（比率）调整压力来适应其他工作压力。 [外文原描述]： This document specifies general requirements and definitions of liquefied petroleum gas fuel components (fuel selection system and electrical installations, intended for use on the types of motor vehicles as defined in ISO 3833). It also provides general design principles, and specifies requirements for instructions and marking. This document is applicable to vehicles (mono-fuel, bi-fuel or dual-fuel applications) using gaseous fuels in accordance with ISO 9162. It is not applicable to the following: a) fuel containers; b) stationary gas engines; c) container mounting hardware; d) refuelling receptacles. It is recognized that miscellaneous components not specifically addressed herein can be examined for compliance with the criteria of any applicable part of the ISO 20766 series, including testing to the appropriate functional tests. All references to pressure in this document are considered gauge pressures unless otherwise specified. This document applies to devices which have a service pressure in the range of 110 kPa (butane rich at 20 °C) and 840 kPa (propane rich at 20 °C), hereinafter referred to in this document. Other service pressures can be accommodated by adjusting the pressure by the appropriate factor (ratio).