You can find out roughly how old your wiring is by simply looking at it. If the wiring around your fuse box is covered in old-fashioned casing, or is damaged or fraid, it may be over 25 years old and need replacing. This is more common in older properties or houses that have been empty for long periods of time.
Canonbie
Canonbie (population 390) is a small town in Dumfriesshire within the regional authority area of Dumfries as well as Galloway in Scotland, six miles southern of Langholm and also 2 miles north of the Anglo-Scottish boundary. It is on the A7 road from Carlisle to Edinburgh, as well as the River Esk moves with it. There are frequent recommendations in older documents to it as Canobie. Canonbie was immortalised in a poem by Sir Walter Scott entitled Marmion. A famous section covers the exploits of young Lochinvar. Having actually taken the hand of the bride of Netherby Hall, about 3 miles south of Canonbie, the rushing knight is chased after via Canonbie, but makes great his escape.