|How many cable have you got for each colour. One of the black ones is a 'Switched live' and usually has red tape on it.|
All reds together
All blacks together (apart from 'Switched live') and to neutral of light
Switched live to live of light
All earths together.
Changing a light fitting is not contravening anything, adding new circuits is.
If unsure get an electrician in
Mt Handy Andy
|You are causing a short circuit because one of those cables that you think is a neutral is probably a switched live. |
Second, unless you are a 'Competent Person' DIY electrics in the kitchen now contravenes UK Building Regs.
Get an electrician before you have real problems.