(19)

(11)

EP 1 138 104 A1

(12)

(43) Date of publication: 04.10.2001 Bulletin 2001/40 (21) Application number: 99950978.9 (22) Date of filing: 25.10.1999

(51) International Patent Classification (IPC)7: H02H 3/12 (86) International application number: PCT/GB9903/525 (87) International publication number: WO 0025/406 (04.05.2000 Gazette 2000/18)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 27.10.1998 GB 9823527 (71) Applicant: Northern Electric Distribution Ltd. Newcastle Upon Tyne NE1 6NE (GB)	(72) Inventor: MAY, Harry Stanley,18 Valley Drive GatesheadTyne & Wear NE9 5DE (GB) (74) Representative: Sanderson, Michael John et al MEWBURN ELLISYork House23 Kingsway London WC2B 6HP London WC2B 6HP (GB)