STB PDF

Low-voltage surge protective devices Surge protective devices for specific application including d.c. Part 11- Requirements and tests for SPDs in photovoltaic applications. Original standard UNE-EN 50539-11-2013 in PDF full version. Additional info + preview on request

Document status: Replaced by STB UNE-EN 61643-31-2021

Amendment 1 - Electrical apparatus for the detection and measurement of toxic and combustible gases in car parks and tunnels - Part 1- General performance requirements and test methods for the detection and measurement of carbon monoxide and nitrogen oxides. Original standard UNE-EN 50545-1-2012 A1-2016 in PDF full version. Additional info + preview on request

Document status: Active

Requirements for generating plants to be connected in parallel with distribution networks Part 2- Connection to a MV distribution network Generating plants up to and including Type B. Original standard UNE-EN 50549-2-2019 in PDF full version. Additional info + preview on request

Document status: Active

Electric room heating underfloor heating characteristics of performance - Definitions, method of testing, sizing and formula symbols. Original standard UNE-EN 50559-2013 in PDF full version. Additional info + preview on request

Document status: Active

Electric cables - Guide to use for cables with a rated voltage not exceeding 450/750 V (U0/U) - Part 1- General guidance. Original standard UNE-EN 50565-1-2015 in PDF full version. Additional info + preview on request

Document status: Active

Electric cables - Guide to use for cables with a rated voltage not exceeding 450/750 V (U0/U) - Part 2- Specific guidance related to EN 50525 cable types. Original standard UNE-EN 50565-2-2015 in PDF full version. Additional info + preview on request

Document status: Active