空运设备 - 约束带 - 第1部分:设计标准和测试方法

[中文适用范围]： 本文件规定了足以保证航空业使用的具有典型 22250 N（5000 lbf）额定极限拉力载荷能力的货物约束带组件的极限载荷和操作可靠性的设计标准和测试方法。 这些约束带在民用运输飞机飞行期间用于： a) 装载货物并绑在适航批准的航空货运托盘上，其本身约束在飞机下层甲板、主甲板或上层甲板货物系统中，并满足 b) 非组合式的要求单个货物或放置在飞机下层甲板、主甲板或上层甲板集装箱货舱中的无约束（“浮动”）托盘上的货物， c) 相同的约束带组件也可用于其他应用如： 1）非集装箱（散装）行李舱和货舱； 2) 确保货物限制在经适航批准的航空货运集装箱内。 注：大多数飞机散装舱和许多航空货运集装箱内的连接点允许的极限载荷明显低于 22250 N（5000 磅力）。 这导致约束装置的极限负载能力由最薄弱的元件（即连接点）决定：因此，典型的22250 N极限负载约束带将超过此类应用的要求。 除其中的其他要求外，遵守本文件还提供了民航局根据 TSO/ETSO-C172a 批准货物约束带适航性的一种方法。 [外文原描述]： This document specifies the design criteria and testing methods adequate to guarantee the ultimate load and operational dependability of cargo restraint strap assemblies with a typical 22 250 N (5 000 lbf) rated ultimate tension load capability, as used by the airline industry. These restraint straps are used in civil transport aircraft during flight for: a) cargo loaded and tied down onto airworthiness approved air cargo pallets, themselves restrained into aircraft lower deck, main deck or upper deck cargo systems and meeting the requirements of ISO 8097 (NAS 3610) or ISO 21100, or b) non-unitized individual pieces of cargo, or pieces of cargo placed onto an unrestrained ("floating") pallet into either lower deck, main deck or upper deck containerized cargo compartments of an aircraft, c) the same restraint strap assemblies can also be used in other applications such as: 1) non-containerized (bulk loaded) baggage and cargo compartments; 2) to ensure cargo restraint inside an airworthiness approved air cargo container. NOTE The ultimate loads allowable on the attachment points available in most aircraft bulk compartments and inside many air cargo containers are significantly lower than 22 250 N (5 000 lbf). This results in the restraint arrangements ultimate load capability being dictated by the weakest element, i.e. the attachment points: typical 22 250 N ultimate load restraint straps will therefore be in excess of the requirements for such applications. Compliance with this document provides one means of cargo restraint straps airworthiness approval by Civil Aviation Authorities under TSO/ETSO-C172a, in addition to the other requirements therein.