We are having several different opinions regarding Bolts used for Busbar connections of MV Cables as well as motor terminations in drawer compartments. Since we are working in Europe. Client maintains we should use 8.8 which is a metric medium carbon steel type bolts 120000psi along with recommended torque values. My company has purchased A2 & A4 gr 70 stainlees Steel bolts and we have used them extensively throughout our project. There is now a discussion as to replacing these bolts. I have stated that there is nothing wrong with the Stainless Steel bolts being used as long as the correct torque value is used, and that the Short Circuit Withstand values will not be compromised by these bolts. I have quote the fact that ABB Siemens and other Engineering companies use these satainless steel bolts for terminations on Generators and switchgear. However we are working under some Russian PUE, Gost & SNIP codes Can anyone substantiate my conconclusions
Red Flag Submitted
Thank you for helping keep Eng-Tips Forums free from inappropriate posts. The Eng-Tips staff will check this out and take appropriate action.
Reply To This Thread
Posting in the Eng-Tips forums is a member-only feature.
ENGINEERING.com surveyed 364 product development professionals to glean insights into how their teams are performing today, and what technologies are most useful to support their processes. Download Now
3D printing has quickly expanded beyond the realm of prototyping and into the world of end part manufacturing. Desktop 3D printers need not be used for making parts themselves, but as a secondary process for producing tools. Download Now
Creating tooling for injection molding is an expensive and complex proposition. Until recently, the only way to avoid tooling defects causing air traps, voids, shrinkage and the like was to employ a time-consuming and tedious physical prototyping process. Download Now