I like this one. Its interesting just to find out what is classed as a 'Portable' item and what should be checked.
According to the Gov web site:
http://www.hse.gov.uk/pubns/indg236.pdf
Portable and movable equipment
A portable or movable electric appliance is any item that can be moved, either connected or disconnected from an electrical supply. Portable or movable items generally have a lead (cable) and a plug.
Portable and movable equipment includes the following:
■■ electrical equipment that can be easily moved around, such as kettles, vacuum cleaners, floor polishers, portable heaters, fans, desk lamps, some TVs, radios, some small electric cookers, PC projectors, small appliances such as irons, hair dryers and kitchen equipment including food mixers, toasters etc;
■■ larger items that could be moved (but only rarely), eg water chillers, fridges, microwaves, photocopiers, vending machines, washing machines, electric cookers, fax machines, desktop computers, electric beds etc are considered to be movable items;
■■ hand-held items, such as hairdryers, that do not have a plug but have been wired in (or fixed) are still considered to be portable appliances, but large electrical items, such as water boilers that are wired in, are not portable appliances as they are not designed to be moved and would come under the scope of fixed installation maintenance;
■■ mobile phone and other battery-charging equipment that is plugged into the mains (but the phones themselves and any other battery-operated equipment would not be included); and
■■ extension leads, multi-way adaptors and connection leads.
If you read the info in these sites it suggests that because your iec leads are not moved much then they would be maintained by a visual inspection every 5 years. Of course if some of the power supplies "will fail a PAT test " then they need checking.