I'm covering my workbench with a ESD mat (3100x900mm.) I will also install 4 x ESD Sockets under the workbench (see below.)  I will connect everything to an ESD EU plug:  In the end the mat and sockets will both connect to EU ESD plug. My real question is if there's a problem with that connection. The ESD sockets already have 1Mohm and the EU plug have another 1Mohm, that connection will make a 2Mohm resistance. Plus if I use a wrist band with another 1Mohm resistor that result in a final 3Mohm to earth. Will that decrease the effectiveness, or will be just fine? Result:
I have a hard time finding a how-to.  I would like to set up a simple ESD mat and wrist wrap, but I am not sure about is the the 1 MOhm resistor should be, if at all.  Several options:   1 MOhm from ground outlet to the mat, wire from the common earthing on the mat to the wrist wrap. 1 MOhm from ground outlet to the mat, wire from another contact on the mat to the wrist wrap. 1 MOhm from ground outlet to the mat, 1 MOhm from the same mat contact to the wrist wrap. wire from ground outlet to the mat, 1 MOhm from the same mat contact to the wrist wrap. wire from ground outlet to the mat, wire from another mat contact to the wrist wrap.   I am not sure why the 1 MOhm wire is needed since the mat itself already has that kind of resistance (as long as the wrist wrap does not connect to ground directly, but through the mat).  Which solutions above are ok? Which is best? Should I do something else instead?
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