Obvious signs for example melt away marks, corrosion, or maybe a burning scent near the fuse box reveal opportunity dangers and the need for replacement. Connect the Neutral Wires: Connect the neutral wire (blue or black) through the consumer unit to every light fixture. This wire connects to your neutral https://kylermjdxo.uzblog.net/emergency-electrician-services-uk-things-to-know-before-you-buy-49054948