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I was looking for some unshielded multicore cable with a black jacket and found it unusually difficult because most of the reliable manufacturers provide cables with a grey jacket.
Is there a meaning behind the grey colour of a cable jacket? Why is it more popular than the black jacket?
I agree with this mostly but don't assembly constraints with connectors make it difficult for EMC? For example you might have two high-frequency/high-current output connectors on opposite sides of the board (for ease of wiring assembly) but only one power supply input connector. Where do you put...
I think everyone can see that the market for TFT/LCD is only going to increase. Especially integration into cars. It's unusual for the USA to not have invested more in the technology. It's handing over a massive market to the East.
:laugh: There's two definite types of people on this forum: those that ask questions and those that answer them. When did you last ask a question?
I did notice a while back that me and treez seem to be of the inquisitive type. Maybe it's because we are both in the same situation where we don't...
According to Wikipedia all TFT/LCD fabs are located in China, Taiwan and Japan. Can anyone name any fabs outside of Asia?
Considering the uptake of these screens why aren't there any fabs in Europe or USA? Has it all been outsourced because the process is too polluting?
Is it possible that in...
Do you mainly use 2 layer or 4+ layer PCBs for your products? Getting mixed advice from the internet about whether it's possible to pass EMC with 2-layer PCBs sometimes. On the other hand, have only ever seen 2-layer PCBs in tear-downs.
BS7671 is for fixed installations, not equipment.
Is BS EN 60335 a legal requirement or is it a standard as in it's a good idea to follow them to meet requirements but technically you don't need to?
Assuming a board "works" then all of these things would be satisfied. They can be tested and verified at home.
The thing that I don't like is that it's misleading for hobbyists in electronics that have come from Adafruit, Arduino, etc. and want make the leap from "working" electronics to...
One could spend hours trying to make the board look pretty, doing the correct routing, grounding, decoupling. In the end the only thing that matters is that it passes EMC testing.
Can one ever be considered good at PCB layout until they have at least a couple of designs under their belt which...
Have you guys experienced this in your work? Have you had to seek out all the standards for your products, purchase every one of them, and read through them all carefully? Or have you just sent the product to some testing consultant and they tell you everything that's wrong with it?
For example, inside an enclosure you have mains voltage wiring and secondary voltage wiring. There will always be terminals, leads, pins, etc. at mains voltage that are uninsulated. Are you telling me that all the secondary voltage wiring must be rated to 600V just incase it miraculously bends...
This is what I don't like. Safety standards open to interpretation. Who's going to tell me whether the fixation is reliable enough or not to use 300V wire?
Thank you for the replies guys. I want to mark this thread as solved but is there any proof of these answers? I suppose it's hard to prove a lack of standards!
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