【正文】 Standard specifies the safety requirements for design, construction, installation, maintenance and testing of dock levellers and for safety ponents on dock levellers. With the exception of: a) dock levellers for marine and aircraft applications。 c) vehicle mounted tail lifts. NOTE 1 Requirements for lifting tables are laid down in EN 1570. NOTE 2 Requirements for vehicle mounted tail lifts are laid down in EN 17561. This European Standard is applicable to dock levellers which are used by persons and/or manual or power driven transport equipment (e. g. forklift trucks) as traffic paths between goods vehicles, both road vehicles and rail wagons, and parts of buildings such as loading docks. This standard does not deal with other bridging devices not shown in Figure 1. a) Bridge plate (dock plate) manually operated, mobile c) Manually operated dock leveller, installed in a pit, hinged lip b) Manually or power operated dock leveller, fixed at the dock edge d) Power operated dock leveller, installed in a pit, telescopic or hinged lip Figure 1 — Types of dock levellers NOTE Only dock levellers fitted with a drive system other than directly applied human effort are machines in the sense of the Machinery Directive. This European Standard specifies requirements in order to protect persons and objects against accidents and health problems and damage during use and operation of dock levellers. 7 BS EN 1398:2022 EN 1398:2022 (E) Persons to protect are: a) operators and users。 c) persons near the dock leveller. Objects to be protected are: d) goods on dock levellers。 Electromechanical contactors and motorstarters (IEC 6094741:2022) EN 6094742, Lowvoltage switchgear and controlgear — Part 42: Contactors and motorstarters — AC semiconductor motor controllers and starters (IEC 6094742:1999) EN ISO 121001:2022, Safety of machinery — Basic concepts, general principles for design — Part 1: Basic terminology, methodology (ISO 121001:2022) 8 BS EN 1398:2022 EN 1398:2022 (E) EN ISO 121002:2022, Safety of machinery — Basic concepts, general principles for design — Part 2: Technical principles (ISO 121002:2022) EN ISO 138491:2022, Safety of machinery — Safety related parts of control systems — Part 1: General principles for design (ISO 138491:2022) EN ISO 13850, Safety of machinery — Emergency stop — Principles for design (ISO 13850:2022) ISO 112281, Ergonomics — Manual handling — Part 1: Lifting and carrying ISO 112282, Ergonomics — Manual handling — Part 2: Pushing and pulling CENELEC HD 60364441, Lowvoltage electrical installations — Part 441: Protection for safety — Protection against electric shock (IEC 60364441:2022, modified) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN ISO 121001:2022 and the following apply. dock leveller static or mobile device to bridge the space between a loading dock or similar loading areas and the loading surface of a vehicle which may be at different levels NOTE 1 Dock levellers may be built as: a) manually operated, mobile dock leveller, called bridge plate or dock board, see Figure 1a)。 c) manually operated dock leveller built in to a loading dock or fixed to the edge of a dock, see Figure 1b) and c). NOTE 2 Dock levellers are provided for loading and unloading operations and are not designed to lift or lower loads. NOTE 3 The lifting or lowering mechanism is only provided to make alterations in the position of the unloaded dock leveller. dock board/bridge plate dock leveller, consisting of a manually operated plate, suspended or loose latched dock leveller dock leveller which is held in a certain position by a positively engaged locking device bridge deck part of the dock leveller in the form of a plate which is used as traffic path for persons and/or transport equipment, but excluding the lip (see Figure 2) 9 BS EN 1398:2022 EN 1398:2022 (E) Key 1 Bridge deck 2 Bearer 3 Hinged lip Figure 2 — Main parts of a dock leveller bearer supporting part of a dock leveller in the form of a beam, fixed at the under side of the bridge deck (see Figure 2) support device part of a dock leveller, e. g. in the form of a block, bar or bolt which supports the dock leveller in the horizontal stored position hinged lip part of a dock leveller hinged to the bridge deck and resting on the vehicle in the operational position (see Figure 2) telescopic lip part of a dock leveller which can be telescopically extended towards the vehicle and which rests on the vehicle in the operational position loading loading or unloading a vehicle using a dock leveller free floating condition mode in which the dock leveller supported on the vehicle may follow automatically the vertical movements of the vehicle during the loading process stored position position to which the dock leveller is put, or to which it returns, when loading has finished 10 BS EN 1398:2022 EN 1398:2022 (E) automatic return return cycle of the dock leveller to its stored position with or without operator initiation installed fixed to a dock edge or built in to the loading dock or a similar area automatic safety device device which automatically prevents an uncontrolled and dangerous lowering of the loaded dock leveller emergency stop device manually operated device intended to stop all movements of a dock leveller in the event of danger rated load weight of the greatest moving load (including goods, persons and transp