(19)
(11)
EP 0 944 945 A2
(12)
(43)
Date of publication:
29.09.1999
Bulletin 1999/39
(21)
Application number:
97913551.0
(22)
Date of filing:
14.11.1997
(51)
International Patent Classification (IPC):
H02J
13/
00
( . )
H02J
3/
24
( . )
H02J
3/
14
( . )
H04B
3/
54
( . )
(86)
International application number:
PCT/NZ1997/000156
(87)
International publication number:
WO 1998/021803
(
22.05.1998
Gazette 1998/20)
(84)
Designated Contracting States:
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
(30)
Priority:
14.11.1996
NZ 19960299756
(71)
Applicant:
Brian Tolley Corporation Limited
Wellinton (NZ)
(72)
Inventors:
GOWANS, Dean, Syme
Wellington (NZ)
YUILL, Andrew
Wellington (NZ)
(74)
Representative:
Skone James, Robert Edmund
GILL JENNINGS & EVERY Broadgate House 7 Eldon Street
London EC2M 7LH
London EC2M 7LH (GB)
(54)
IMPROVEMENTS RELATING TO SIGNALLING IN ELECTRICITY DISTRIBUTION SYSTEMS