International Cord Regulations

EUROPEAN_SEV_OVE_KEMA_CEBECInternational approvals can be difficult to understand. Especially when you see a drawing or a specification sheet and only one end of the power cord is approved and not the other. I mean, how can only one part of a cord be approved while the rest is not? To me, that does not make much sense.

If you look into it, in most cases, a power cord is not approved as a whole but in different sections. The plug, the wire, and the connector are all approved separately. They each have a different set of rules they need to follow. But when all countries are using the same IEC standard connector each approval agency will treat things differently. Such as China and Argentina approving the whole cord set instead of separate pieces.

International_Electrotechnical_Commission_LogoIt all comes down to IEC (International Electrotechnical Commission) and what they consider as standards. While there are many different approval agencies per country they all use the same IEC connectors. That means they all have to follow IEC regulations. According to IEC 60799 5.2.2., it states “The rated current of the plug shall be not less than the rated current of the connector.” This means the connector cannot have a higher rating than the plug attached. Continue reading International Cord Regulations

Amps in Relation to Wire Gauge

SJT wire blueAs my philosophy professor once told me, logic is a fickle thing.  What we often think makes perfect sense never actually does. Those who’ve toiled with justice, love, and the American Wire Gauge system know exactly what I’m talking about.  But no worries; Quail Electronics will explain it all, from wire gauge to the right amperage.  In a previous post, I addressed how the larger the AWG number, the smaller the wire actually is.  This also influences how much amperage is allowed through a wire. Continue reading Amps in Relation to Wire Gauge