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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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Wago 222-412 test port - blanked off when connected?
Having "interesting times" with my extension of the 13A ring main in the
office. I don't have power where I expected it, so I am trying to do some sensible, logical testing. As discussed elsewhere I am using Wago 222-412 connectors. The blurb, including the PDF from Wago, talks about the test port but doesn't give any more detail. There is an obvious test port (well, it is the only access point apart from where the wires go in). It is on the top just behind the orange levers. However when everything is connected up and I stick a test probe down there I don't get any reading. A quick test on a spare one plus some squinting with a Mk 1 eyeball seems to show that when you push the levers down to grip the wires the test port is closed off. At least, when I look down this test post I can see "shiny" with the levers up, and when the lever comes down something moves across and obscures this. If I use a buzzer to check for continuity (one probe in the wire space, one down the test port) then I don't get a buzz with both clips closed, but if I lift one clip and see "shiny" then I can get a buzz. All this suggests that the test port does not work when the wiring is installed and you have to lift one clip (freeing off the wire to move) before you can test. It does not seem logical. Am I missing something obvious? Cheers Dave R -- AMD FX-6300 in GA-990X-Gaming SLI-CF running Windows 7 Pro x64 --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus |
#2
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Wago 222-412 test port - blanked off when connected?
On Sun, 07 Jul 2019 14:02:48 +0000, David wrote:
Having "interesting times" with my extension of the 13A ring main in the office. I don't have power where I expected it, so I am trying to do some sensible, logical testing. As discussed elsewhere I am using Wago 222-412 connectors. The blurb, including the PDF from Wago, talks about the test port but doesn't give any more detail. There is an obvious test port (well, it is the only access point apart from where the wires go in). It is on the top just behind the orange levers. However when everything is connected up and I stick a test probe down there I don't get any reading. A quick test on a spare one plus some squinting with a Mk 1 eyeball seems to show that when you push the levers down to grip the wires the test port is closed off. At least, when I look down this test post I can see "shiny" with the levers up, and when the lever comes down something moves across and obscures this. If I use a buzzer to check for continuity (one probe in the wire space, one down the test port) then I don't get a buzz with both clips closed, but if I lift one clip and see "shiny" then I can get a buzz. All this suggests that the test port does not work when the wiring is installed and you have to lift one clip (freeing off the wire to move) before you can test. It does not seem logical. Am I missing something obvious? More testing with a marginally thinner probe shows that the test port works. You just have to lean on the probe quite strongly. Oh, well. Back to testing. Cheers Dave R -- AMD FX-6300 in GA-990X-Gaming SLI-CF running Windows 7 Pro x64 --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus |
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