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1 vote
1 answer
44 views

EMC and Control Area Networks [closed]

With radiated EMI tests, do we need to take into account the communication cabling and its influence on EMI? I can't seem to find one standard that describes how CAN busses should be configured in EMI ...
Tony's user avatar
  • 187
1 vote
1 answer
359 views

Where can I find information about "Enhanced Policies and Procedures Exam" for IPC?

I'm taking the CSE test for IPC-J-STD-001 and at chapter 7.Certification Exam Overview, I can see that there are 3 types of tests. Policy and procedure test (10 questions) Closed book test (25 ...
euraad's user avatar
  • 1,324
0 votes
1 answer
47 views

What is the relevancy between the actual full load current value (test result) and the supposedly corresponding values from industry standards?

I work on evaluating a motor problem. If I am given an actual current at 100% full load, how does an industry standard value become relevant? I have an example to illustrate the point I am trying to ...
Gold_Sky's user avatar
  • 251
6 votes
3 answers
5k views

How low an insulation resistance is too low for a residential electrical system?

I have had occasion recently to test the wiring of a residential building for damage from a lightning strike. I opened all the breakers, removed all the loads, opened the panel, and meggered each hot ...
Stephen Collings's user avatar
3 votes
3 answers
939 views

What security risks does the Test Access Port (TAP) introduce?

Trying to get my head around the JTAG world I looked at how the Test Access Port (TAP) works and although I get why we need it, the diagram seemed to me (as a software developer) introducing some kind ...
M. A. Kishawy's user avatar