Often people discard electrical goods because they have received a superior item and have no use for the old one. More likely though, is that the item in question has developed a fault and so may be unsafe to use "as is".
To be completed when the author is less tired.........
(page under construction, feel free to add/edit)
Basic Safety Checks
Before powering up, check....
Wet stuff Dry thoroughly before plugging in. A few days in a warm dry place (airing cupboard, garage etc.) will dry most stuff very well.
Leads/Plugtops Check for fraying and cuts to leads. Check that plugs are wired correctly and are fitted with an appropriately rated fuse. If it is necessary to replace a moulded plug, dispose of it carefully. It is a good idea to twist off the line pin to prevent children plugging it in.
Exposed conductors Cracked/broken/incomplete casings may allow contact with live parts.
Heating elements Check that there is nothing (including you!) in contact with any part that is supposed to get hot.
Moving parts Check that moving parts are free to move before switching on. Be aware that where an intermittent fault exists, things may start up unexpectedly. ..
Ensure that using a part in other equipment xxxx
When you have finished examining/refurbishing/testing your item, it is a good idea to "soak test" it. This means leaving it operating (where appropriate) for an extended time WHERE IT CAN BE OBSERVED in order to be confident that it has no faults that only manifest after prolonged use. Not all equipment is suitable for this e.g.
It is particularly important that