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Rigid packets of at least 0.5 tonne each are against a headboard, with the top packets supported by at least 150 mm. What minimum combined rated lashing strength is required?
每包至少0.5噸的剛性貨物緊靠前擋板，頂層貨物有至少150毫米受其支撐。捆綁裝置的合計額定強度至少是多少？
For the rigid packets described, lashings must have a combined rated strength of at least the load's weight when a suitable headboard supports the top packets by at least 150 mm.
剛性貨物緊靠前擋板，且頂層貨物有至少150毫米受擋板支撐時，捆綁裝置合計額定強度至少為貨物重量1倍。
閱讀相關知識
Each packet must weigh at least 0.5 tonne. The usual requirement is twice the load's weight without headboard support, or 1.5 times where only lower packets are supported and the top support is less than 150 mm.
本題適用於每包至少0.5噸的剛性貨物。不靠擋板通常需2倍；僅下層受支撐、頂層不足150毫米時需1.5倍，不能省略支撐條件。