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Electrical Engineering

Questions tagged [iec]

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42 questions
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1 vote
0 answers
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I'm designing a circuit which has to meet the standard IEC 61010-1. It has a transient voltage limitation at the input, so I can calculate my clearances according to section K.3.2. The surge ...
c-a's user avatar
  • 124
6 votes
2 answers
472 views

I am working through the creepage and clearance in IEC 61010-1, and I find that transient voltage (1.2 x 50 µs) is taken into account for clearance, but in creepage, only the working voltage is taken ...
Curious Diode's user avatar
  • 511
3 votes
1 answer
313 views

My question is about the open supply conductor fault test in the electrical safety testing of medical equipment under IEC 60601. Given the equipment is otherwise on for the test up until this fault is ...
demodave's user avatar
  • 33
1 vote
1 answer
100 views

BSEE here but I’ve been writing firmware for twenty years and my electrical knowledge is rusty. We have a USB device we want to test to 61000-4-6. My boss is saying that because we don’t have the same ...
nobby's user avatar
  • 147
0 votes
1 answer
106 views

How do you get the leakage current parameter for hi-pot test? There is only tables for voltages in IEC 62368-1.
JBEE's user avatar
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-4 votes
1 answer
127 views

In IEC 62052-11, Heating test, describe as below, 7.2 Heating Under rated operating conditions, electrical circuits and insulation shall not reach a temperature which might adversely affect the ...
user395338's user avatar
  • 141
0 votes
0 answers
152 views

I am dealing with IEC and NEC standards for wiring color codes. For the first time, I have to integrate european (and UL certified) COTS products - power supplies - into a system for the US market. ...
vionyst's user avatar
  • 876
1 vote
2 answers
215 views

My IS circuit contains an inductance, capacitance, and resistance. Shown below is the simplified schematic, with uncountable and countable fault applied, resulting in the most onerous condition: The ...
Never's user avatar
  • 100
0 votes
0 answers
63 views

During the factory acceptance test (FAT) of a remote IO panel (24V, atex zone 1,) the client did not accept that the multi-core cables were stripped inside the panel wire duct. He said that they ...
Mariana's user avatar
  • 1
0 votes
0 answers
104 views

I am designing an RF module in in a hazardous zone (in the picture it is shown with DCDC and MCU etc.) My module gets power supply from AC/DC. I read about intrinsic safety barriers from the IEC 60079-...
Kostas Severus's user avatar
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1 vote
0 answers
90 views

We are trying to make a slide lock connection between two parts and thus need to have some sort of connector between them. I am wondering if anyone is aware of a IEC standard relevant for connecting a ...
Explorex's user avatar
  • 438
0 votes
0 answers
124 views

Conntek has an IEC C8 to 1-15R adapter. C8 to CEE7/16 cables are dime a dozen on Aliexpress. Yet there are no C8 to 1-15R cables as far as I can tell. Is there an electronics/standard reason ...
chx's user avatar
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1 vote
0 answers
47 views

My client wants to use a 12V SLA with a built-in line-powered charger in his gear. If I add an IEC AC mains line connector does this turkey now have to go through cert?
Marty Schrader's user avatar
  • 11
2 votes
3 answers
3k views

I bought this AC adapter from the US to replace a broken Australian one. Unfortunately, the power brick is keyed for use with the polarised C7P plug. Unpolarised C7 appears to be the standard in ...
Navoda Punchihewa's user avatar
  • 21
4 votes
2 answers
311 views

I was referring IEC 61439-1 standard for the deriving the temperature rise of an assembly through comparison. We can derive the current rating of an assembly (low voltage switchboard) at any point (...
DaSnipeKid's user avatar
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