Re: C5, C6, C7, C8, C13, C14
Is C14 the C13 with a notch?
No, C13 is the plug and C14 is the socket on the appliance. Also it is misleading to call C13/C14 "kettle" lead as C13/C14 is only rated for maximum pin temperature of 70C, where as the notched C15/C16 is rated at 120C and hence actually suitable as kettle lead.
Thanks, I didn't know that. I'll call the C5/C6 a cloverleaf in future. I'm sure most people don't know those C numbers. Kettle lead (13A?), Kettle lead without notch (6A?), figure-of-eight (2.5A) and cloverleaf will I think work for the average person.
To be fair most people wouldn't know which C any connector is if you don't deal with them often enough. Both C13/C14 and C15/C16 (ie notchless and notched) are nominally rated at 10A from connector perspective. Many leads are fused much below that allowing for cable of lower cross sectional area for example. The current limits I've mentioned are IEC rating just for the connector so actual maximum current could be lower depending on cable used. You may also find some (for example UL-listed ones from US) that specify higher current ratings.
For more current you would need to use C19/C20 (rated at 16A max) that you often see in PDUs and UPSes.