Section 2: In these rules, unless the context otherwise requires-

" The Board " means the Machinery Board appointed by the Governor and shall consist of a chairman and such number of persons as the Governor may appoint as members of the Board; " boiler " means any closed vessel used for the purpose of generating steam under pressure; "capacity," in relation to a boiler, means the capacity thereof, steam and water combined; " circuit " means an electrical circuit forming a system or branch of a· system; "conductor" means an electrical conductor arranged to be electrically connected to a system; "covered with insulating material" means adequately covered with material of such quality and thickness that there is no danger by external contact; "dead," in relation to electricity, means at or about zero potential and disconnected from any live system; "District Commissioner" includes the Commissioner, Headquarters Judicial and Freetown Police Districts; " earthed " means connected to the general mass of earth in such manner as will ensure at all times an immediate discharge of electrical energy without danger; "electrical apparatus" includes all apparatus, machines and fittings in which conductors are used, or of which they form a part; "elevator" means any elevator, lift, hoist or other apparatus used for the conveyance of persons or goods by means of a car, cage, cradle or other receptacle in a hatchway on fixed guides; . Interpreta· tion. 1844 Cap. 218] Machinery (Safe Working & Inspection) Cap. 218. " engine " means and includes any arrangement of machinery and any prime mover in the form of machinery which converts physical into mechanical power; " Engineer " means a person qualified by virtue of training and experience to superintend the operation and maintenance of machinery; "gauge pressure" means the pressure in excess of atmospheric or zero pressure, or, in the case of vacuum pressure, the extent of vacuum produced below atmospheric pressure; "hatchway" means any vertical or inclined way in which an elevator is operated; " inspector " means an Inspector appointed under section 11 of.the Machinery (Safe Working and Inspection) Ordinance; "insulated" means covered with, or isolated by, insulating material; . ·"live," in relation to electricity, means electrically charged. "low pressure," in relation to electricity, means a pressure normally not exceeding 250 volts; " machinery " means all mechanical appliances and all electrical apparatus of whatsoever kind and any part thereof' and includes any engine, truck, haulage rope, and line of rails; " metallic covering '' means iron or steel armouring, with or without a lead or other metallic sheath as the conditions of the case may require, or an iron or steel pipe surrounding two or more conductors; " owner " means the owner of any works and includes the manager of such works, the agent of such owner and any hirer using machinery, his manager or agent; in the case of Government Machinery "owner" means the head of any department of Government using or in control of machinery; "pressure," in relation to electricity, means the difference of electrical potential between any two conductors, or between a conductor and earth; " serious personal injury " means such an injury as in opinion of a medical practitioner may result in the injured being jncapacitated from work for at least fourteen days; " skilled person " means a person who has been sufficiently instructed in the particular work which he is required to do to appreciate the dangers attaching thereto; " system " means an electrical system in which all conductors and apparatus are electrically connected to a common source of electro-motive force; Machinery (Safe Working & Inspection) [Cap. 218 1845 " works " means and includes any place or premises, including any mine, in which machinery is or may be erected or installed, but does not include any place or premises used solely for residential purposes. PROVISIONS RELATING TO MACHINERY GENERALLY.