61013-2 Connectors, Interconnects

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61013-2 or The draft international standard 61013-2 is a product-specific standard for terminals, barrel, and bullet connectors, otherwise known as circular connectors. It is issued by the International Electrotechnical Commission (IEC) in their report IEC 61013-2:2015. This report covers the safety, functional requirements, and test methods for designing and constructing terminals, barrel, and bullet connectors.

Terminals, barrel, and bullet connectors, as their name suggests, are circular connectors with terminals on both ends. They are used in a variety of electrical applications from connecting machines to transmitting signals. They are best known for their low-voltage, light gauge applications, such as in automotive, audio, and digital applications. Terminals, barrel, and bullet connectors can help reduce the cost of installations and simplifying assembly methods.

The application field of 61013-2 terminals, barrel, and bullet connectors is quite broad. It includes domestic appliances such as freezers and dishwashers, energy meters, electrical equipment in medical environments, thermoplastic-insulated cables for lighting and cord connecting, and also specialized uses in military and aerospace. The IEC 61013-2 standard should be validated and continuously monitored for a variety of applications ranging from residential to commercial, and industrial to military.

In terms of working principle, terminals, barrel, and bullet connectors carry out low-voltage electrical applications. Before any use, these connectors must be secured according to the product-specific standards stipulated in the IEC 61013-2. The IEC 61013-2 connectors are designed and constructed to ensure the safety of users in residential, commercial, and industrial applications, thus the secure connection is a must. The use of 61013-2 terminals, barrel and bullet connectors guarantees the physical and electrical safety that is required for the various applications. The cross section for the construction of these connectors can vary in sizes ranging from 4mm to 25mm. It is mandatory that the terminals of the connector should be crimped on the conducting wires either by using a dielectric compression process or by soldering.

Apart from being securely secured, the terminals, barrel, and bullet connectors should also be designed and constructed for contact resistance characteristics. The contact resistance, as defined in the IEC 61013-2 standard, should be in the range of 0.5 Ohms to 5 Ohms. When tested for the static conditions, the contact force requirements should be no less than 15N. The contact resistance should also be tested after 1,000 mating cycles, following the IEC requirement. The allowable contact resistance should not exceed 5 Ohms; otherwise, the connector should be rejected.

Finally, the electrical performance of the terminals, barrel, and bullet connectors should be tested according to IEC 61013-2 to ensure that the connectors withstand high temperatures and various environmental conditions. These conditions include pre-stressing, vibration, and temperature cycling. They should pass all the tests for AC/DC voltage, interruption contact current, temperature range in thermal control, and multi-pole isolation and segregation. Connectors that meet these criteria can be used in a variety of applications under normal conditions.

In conclusion, 61013-2 terminals, barrel, and bullet connectors are designed to help users with low-voltage and light gauge applications. Their application fields are quite broad, while their working principles are set up according to IEC 61013-2. The electrical performance of these connectors should also meet several requirements, such as contact resistance, pre-stressing, and temperature cycling, for safety concerns. 61013-2 is an important standard that must be constantly monitored for the safety and quality of the aplications.

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