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Banner Isolated Sockets

Assembly of electric vehicle batteries

no compromises on productivity or safety with the new insulated sockets from Atlas Copco Tools

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Productivity and safety without compromise thanks to the all new isolated equipment from Atlas Copco Tools

As one of the leading manufacturers of tightening and assembly tools which are also used in the automotive industry, Atlas Copco took a closer look at e-mobility and its effects on future production processes. Based on comprehensive field tests, three potential risk areas and accident scenarios linked to assembly of electric vehicle batteries have been identified. 

Scenario 1: Direct contact with live components

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Breaking new ground in assembly thanks to the new isolated sockets from Atlas Copco Tools

The well-thought-out design of the insulating covers consists of a non-conductive composite and a two-part shell structure that can be simply clipped to the electric tool. With an additional rubber ring and a front cap, tools used in the assembly process are effectively insulated and protected. This way, short-circuits caused by accidental contact between the metal angle head and live components can be avoided.

In the course of the development of the insulation tool covers, it became clear that a holistic solution would also call for special isolation of the sockets. In order to prevent direct contact with live components and short circuits with grounded tools and batteries (see scenarios 1 and 3), Atlas Copco Tools therefore developed two further product innovations: isolated sockets and Quick Change Adapters. Both solutions provide isolation both in axial and radial direction, ensuring maximum process and user safety.

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Tested and certified

Even though a single applicable standard for isolated sockets is not yet available, the applicable sections of DIN EN IEC 60900:2018 and ASTM F1505 were investigated and various tests were identified to ensure the mechanical strength and electric isolating properties of the sockets. For example, the dielectric test was carried out and confirmed both by VDE (Verband der Elektrotechnik Elektronik Informationstechnik e.V.) and by the Intertek laboratory.

The successful completion of the VDE tests means that we are allowed to use the double triangle symbol in accordance with DIN EN IEC 60900:2018 on our isolated sockets and Quick Change Adapters.

Intensive testing was also carried out internally. This includes for example durability, indentation and flammability tests. Furthermore also impact test has been performed with excellent results.

Double your protection on live systems

Thanks to a composite core the isolated sockets and quick change adapters provide isolation in axial direction to completely delete any electric conductivity between bolt and tool when tightening. In addition the isolated sockets and quick change adapters are insulated in radial direction by free rotating sleeves. Featuring the same rotating sleeves our ROTACTION safety sockets can be combined with the isolated quick change adapters. This caters for a fully integrated system which helps protect from both electric shocks and from gloves getting entangled. 

So the isolated quick change adapters have been developed as a modular system to be used in combination with a major part of our ROTACTION range of sockets and bits. To ensure a complete radial insulation when using ROTACTION sockets with isolated quick change adapters, easy to install insulated socket covers are available and must be used at any time.

Dielectric tests of the non-conductive composite used for electrical insulation were carried out in axial and radial direction at 10,000 V DC.

Insulated socket

Double triangle test symbol in accordance with DIN EN IEC 60900:2018: The double triangle shows users that they can work with these tools at voltages up to 1,000 V.

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Atlas Copco Solutions for Battery Assembly