Based on http://www.edugeek.net/forums/behind...tml#post468942 you will need to do the removable cord part (socket to female IEC) which plugs into the transformer box.
Am I right in thinking that a visual inspection is sufficient for a TFT monitor with an external power adapter?
No you are not correct (and on this basis, you shouldn't be testing things. This is a really basic question...)
If the flying lead is not permanently attached to the transformer, it needs a separate IEC test. The transformer itself probably needs a class II test, but only if it's double insulated. If it's not, it gets a class I.
edit: and yes, you need to attach the monitor.
Last edited by powdarrmonkey; 2nd March 2010 at 09:44 AM.
The power supply will need testing but there is not test for the monitor itself as it is running on a low voltage.
So, I plug it into a (known good) cable, and turn it on - right?
I am registered to test stuff here, but have never actually done it! I went on the course several years ago, and when it transpired how little IT equipment actually needs testing, I largely walked away from it.
The adapter and monitor.
We've been given it second-hand, so I want to have it tested (we were advised not to bother with brand new equipment).
Sorry Powdarrmonkey, I believe you are incorrect. As it's a transformer, and the voltages within the appliance are below 50 volts, it's a Class 3 appliance. It doesn't need testing. Therefore, you perform a formal visual inspection. Check to see there is no damage to the transformer, cable or device, and that it has the correctly rated fuse.
Hypothetically, since I don't think you should actually be doing it, you:
1. Plug both ends of the IEC into your tester and perform an IEC test;
2. Plug the tail end of the IEC into the adaptor, connect and switch on the monitor, and perform the appropriate test, which depends on the adaptor;
3. GET BACK ON THE COURSE BEFORE YOU KILL SOMEONE.
I think I understand what you're getting at. The monitor itself is an SELV device, but you're not testing the monitor. You're testing the adaptor, which plugs into the mains and is class I or II, unless you've paid $$$ for it. FFS, look at the brick and tell me if you see the class II or III mark on it.
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