An electrical installation can be made from many parts, more than you might think. For your synoptic assessment you need to make sure you know the correct names and functions of each of them.
Click on the tabs above to find out the names of the components you may be using.
A 12-way consumer unit
1-gang switch
2-gang switch
1-gang switched socket outlet
2-gang switched socket outlet
Switched fused connection unit
Batten ceiling rose
Ceiling rose and pendant
IP55 junction box
Strip LED luminaire
Bulkhead luminaire
20 A junction box
IP 55 rated enclosure
1-gang moulded surface pattress
2-gang moulded surface pattress
1-gang PVC conduit pattress
2-gang PVC conduit pattress
1-gange galvanised knockout box
2-gang galvanised knockout box
1-gang dry lining knockout box
2-gang dry lining knockout box
1-gange metal-clad surface box
2-gang metal-clad surface box
1-gang metal clad switch
2-gang 13 A switched metal clad socket outlet
Galvanised conduit terminal box
Galvanised conduit angle box
Galvanised conduit through box
Galvanised conduit tee box
PVC conduit terminal box
PVC conduit angle box
PVC conduit through box
PVC conduit tee box
Glavanised steel lid
PVC box lid
20 mm galvanised steel conduit
20 mm PVC conduit
Galvanised conduit coupler
20 mm galvanised spacer bar saddle
20 mm galvanised distance saddle
20 mm brass conduit bush
20 mm PVC conduit coupler
20 mm PVC female conduit adpater
20 mm cable gland
PVC channel
Glavanised steel channel
20 mm cable gland kit
Interior earth clamp
Exterior earth clamp
Cable clip
20 mm open grommet
20 mm blind grommet
20 mm cable gland
15 A connector strip
Wago 3-way lever connector
2.5 mm SWA cable
2.5 mm 2-core & CPC flat-profile 70C thermoplastic cable
2.5 mm single 70C thermoplastic cable