Irish Standard EN 81-1:1998 (IS EN 81-1:1998) is the Irish version of the European Standard EN 81-1:1998. This standard is part one in a series covering safety rules for the construction and operation of lifts. The part one document focuses on electric lifts. It provides a detailed instruction for standardized installation and maintenance of lift safety gear and electric safety devices, as well as guide rails, landing doors, car doors, balancing weight systems, and locking device operation. It discusses the relationship of a lift’s construction to its rated speed and rated load, and provides a detailed formula for calculation of a lift’s bending stress, dependent on its balancing weight, positioning of guide rails, and the distribution of its rated load.The annexes provided in this standard include illustrations and tables that further explain various concepts.