DS/ISO 3691-4:2020

Industrial trucks - Safety requirements and verification - Part 4: Driverless industrial trucks and their systems

This part of EN ISO 3691 gives safety requirements and the means for their verification for driverless**industrial trucks (hereafter referred to as trucks) and their systems.**It is not applicable to trucks solely guided by mechanical means (rails, guides, etc.).**For the purposes of this part of EN ISO 3691, a driverless industrial truck is a powered vehicle, including any**trailer, which is designed to travel automatically and for which the safety of operation does not depend on**an operator. Remote-controlled trucks are not considered to be driverless trucks. A truck's system**comprises the control system, which may be part of the truck and/or separate from it, guidance means and**power system. Specific requirements for power sources other than batteries (e.g hydrogen fuel cells,**internal combustion engines) are not covered in this standard. Some trucks may also follow the**requirements of EN ISO 3691-1.**The condition of the operating area has a significant effect on the safe operation of the driverless industrial**truck. The preparations of the operating area to eliminate the associated hazards are specified in Annex**A.**This part of EN ISO 3691 deals with all significant hazards, hazardous situations or hazardous events,**as listed in Annex B, with the exception of the following, relevant to the applicable machines when**used as intended and under conditions of misuse which are reasonably foreseeable by the**manufacturer.**It does not establish requirements for hazards that can occur** during operation in severe conditions (e.g. extreme climates, freezer applications, strong magnetic**fields),** during operation in environments subject to special rules (e.g. potentially explosive atmospheres),** during the transportation of passengers other than a trained operator,** when handling loads the nature of which could lead to dangerous situations (e.g. molten metals,**acids/bases, radiating materials),** from parts of trucks requiring manual intervention during operation,** from trucks intended to operate in areas open to persons unaware of the hazards.****Regional requirements, additional to the requirements given in this part of EN ISO 3691, are addressed**in ISO/TS 3691-7 and ISO/TS 3691-8.