drainage installation means a system situated on any premises and vested in the owner thereof and is used for or intended to be used for or in connection with the reception, storage, treatment or conveyance of sewage on that premises to the connecting point and includes drains, fittings, appliances, septic tanks, conservancy tanks, pit latrines and private pumping installations forming part of or ancillary to such systems;
New installation means an installation, construction of which began after the effective date of any regulation having application to it.
Existing installation means an installation, construction of which began prior to the effective date of any regulation having application to it.
Nuclear installation means (a) anything defined as a ‘Nuclear Installation’ in the Paris Convention (Convention on Third Party Liability in the Field of Nuclear Energy of 29th July 1960, as subsequently amended) or the Vienna Convention (Vienna Convention on Civil Liability for Nuclear Damage); (b) any vessel or means of transport incorporating a nuclear reactor; or (c) any other facility or site containing a nuclear reactor or storing or handling any nuclear fuel or waste.
fire installation means a potable water installation that conveys water intended for fire-fighting purposes only;