BS EN IEC 60352-7:2021

What is BS EN IEC 60352‑7 about?  

BS EN IEC 60352‑7 is the seventh part of Solderless connection in multi-series.  

BS EN IEC 60352‑7 applicable to spring clamp connections made with stripped wire without further preparation: 

• Solid conductors of 0,32 mm to 3,7 mm nominal diameter (0,08 mm2 to 10 mm2 cross‑section), or 
• Stranded conductors of 0,08 mm2 to 10 mm2 cross-section, or 
• Flexible conductors of 0,08 mm2 to 10 mm2 cross-section, 

Note: IEC Guide 109 advocates the need to minimize the impact of a product on the natural environment throughout the product life cycle. It is understood that some of the materials permitted in this document can have a negative environmental impact. As technological advances lead to acceptable alternatives for these materials, they will be eliminated from this document. 

Note: BS EN IEC 60352‑7 covers spring clamp connections and includes requirements, tests and practical guidance information. 

Who is BS EN IEC 60352‑7 for? 

BS EN IEC 60352‑7 on Solderless connections is useful for: 

• Manufacturers of electronic equipment 
• Electricians 

Why should you use BS EN IEC 60352‑7? 

Using solderless connections is easy. It makes connection between devices quick and simple. The cost of solderless connections is also quite affordable. This reduces the time taken to form connections. BS EN IEC 60352‑7 is useful for conducting basic tests and full tests, which help in contact resistance, and also helps the conductor to remain clamped even when the conductor is deflected in a normal installation. This BS EN IEC 60352‑7 helps in reducing vibration and contact disturbance in spring clamp connection. BS EN IEC 60352‑7 helps to assess the ability of a spring clamp termination with a wire range to withstand a specific number of connections and disconnections. BS EN IEC 60352‑7 is useful for you as it helps in indicating the mechanical strength of spring clamp connection and also helps in sustaining the electrical capacity and temperature.  

The basic objective of BS EN IEC 60352‑7 is to determine the suitability of the spring clamp connection under specified mechanical, electrical and atmospheric conditions. 

What’s changed since the last update?  

BS EN IEC 60352‑7:2021 supersedes BS EN 60352‑7:2002. BS EN IEC 60352‑7:2021 includes some technical changes with respect to BS EN 60352‑7:2002. These include: 

• Correction of the two flow charts in Figure 6 and Figure 7 
• Split the content into more clauses for better separation between full test schedule and basic test schedule 
• Relocating the content of former Clause 6 Practical guidance into an informative Annex A, as now common in the IEC 60352 series for solderless connections 
• Clarification on conductor types with reference to classes defined in IEC 60228