does you fusebox look like this ?
This section is designed for you to determine if your fusebox meets current regulations or needs upgrading.
Check out our rogues gallery of non-regulation fuseboxes.
Ex. 1. Metal clad fuseboard. These boards have rewireable fuseholders and cannot accept a modern RCD (Residual Current Device). The fuseholders must be rewired with fusewire and can be crudely modified with over-rated fusewire, paper-clips and even nails! They are non-regulation and uncertifiable under the 16th and 17th edition.
Ex. 2. Metal clad fuseboards. Same as above but these fuseboards have been modified with push-buttom MCBs (Miniature Circuit Breakers) circa 1980. These boards cannot accept a modern RCD and are uncertifiable under the 16th and 17th edition.
Ex. 3. Wylex 'B' Board (house) - Plastic insulated fuseboard with rewireable fuseholders. Probably the most common fuseboard that we have to replace. The fuses must be rewired with fusewire and can be crudely modified. Again these boards have often been modified with push-buttom MCBs as in Ex.1. These boards cannot accept a modern RCD and are now under rated. Shame it wasn't replaced before plastering.
Ex. 4. Wylex 'B' Board (flat) - another plastic insulated fuseboard with rewireable fuseholders. These boards cannot accept a modern RCD and are uncertifiable under the 16th and 17th edition..
Ex. 5. Double Insulated consumer unit - Very commonly installed over the last 10-15 years. Comes fitted with MCBs instead of fuses. Easy to use and reset after a short circuit. However these boards cannot accept a modern RCD and are un-certifiable under the 16th and 17th edition.
Ex. 6. Double Insulated consumer unit with RCD - Commonly installed over the last 10-15 years where there has been an extension or kitchen refurbishment. Comes fitted with MCBs instead of fuses and also has an RCD. However, on closer inspection the RCD is 300mA (that's 10 times the new 30mA trip level). This board cannot be modified and would have to be replaced.
