Jonas looked back at the tangle of wires, then at the schematic on his laptop. He traced the line from the safety interlock to the main processor. He looked at the inductor symbol representing the relay coil.
: Most distributors offer a free PDF preview that includes the table of contents, scope, and introductory terms. You can view these at sites like iTeh Standards or the BSI Standards Publication . IEC 60375:2018 iec 60375 pdf
When purchased legally from the IEC webstore, the PDF is fully searchable, high-resolution, and includes a digital watermark with your license information. Printing is usually allowed for internal use only. Jonas looked back at the tangle of wires,