Choosing Power Line Filters: Current, Leakage and Safety
How the RF filters on every power line entering a shielded room are chosen, leakage current and safety issues, and common mistakes.
3 min readNovember 6, 2026
Technical Articles
Read every guide on this topic on one page.
8 articles8 topicsFrom Our Engineering Team
Technical
Technical
Why Partial Discharge Testing Needs a Shielded Lab
Why partial discharge measurement in cable, transformer and insulator testing is so sensitive to outside noise, and the role of a shielded lab.
3 min readNovember 3, 2026
Technical
Magnetic Shielding with Mu-Metal: When and How?
How shielding with mu-metal and silicon steel against low-frequency magnetic fields works, with practical application examples.
3 min readOctober 25, 2026
Technical
How Do Honeycomb Vent Filters Work?
The working principle and selection criteria of the honeycomb (waveguide) filter that lets air into a shielded room while keeping signals out.
3 min readOctober 12, 2026
Technical
RF Gasket Types: Finger Stock, Knitted Wire and Conductive Elastomer
How the RF gaskets used in shielded doors and panel joints work, their advantages, and which one to choose in which situation.
3 min readOctober 9, 2026
Technical
How Is Shielding Effectiveness Measured? A Guide to EN 50147-1 and IEEE 299
The only way to know whether a shielded room really works is to measure it. The measurement method step by step.
3 min readSeptember 23, 2026
Technical
Choosing a Shielded Door: Strengthen the Room's Weakest Link
The door is the most common cause of lost performance in shielded rooms. We cover door types and why maintenance matters.
3 min readAugust 26, 2026
Technical
Magnetic Shielding: Flickering Screens in Offices Near Transformers
Low-frequency magnetic fields cannot be stopped by ordinary shielding. We explain how magnetic shielding is done.
3 min readJuly 8, 2026
Knowledge center
Ask Our Engineer Your Question
Tell us briefly about your project; we'll send you the best solution and a quote within 24 hours.