it's a legal requirement also?
Regulation 12(1): Subject to the following provisions of this regulation, no person shall supply, for use in the United Kingdom, any appliance unless it is correctly fitted with a standard plug which—
(a) complies with BS 1363; and
(b) is fitted with a fuse link which conforms to BS 1362 and is rated in accordance with the appliance or any instructions supplied with the appliance.
Regulation 12(2): Paragraph (1) above shall not apply to any appliance which is fitted with a non-standard plug if that plug is used with a conversion plug which, when the appliance is correctly connected to a socket-outlet, enables that appliance to be so connected safely and in such a manner that there is no reasonably foreseeable risk to the user.