Kodi miyezo ya njanji ndi iti? - Royal Group

Njanji ndi zinthu zofunika kwambiri pa sitima zomwe zimagwiritsidwa ntchito kwambiri pa sitima pothandizira ndi kutsogolera sitima. Miyezo ya njanji zachitsulo nthawi zambiri imakhazikitsidwa ndi mabungwe omwe amakhazikitsa miyezo ya sitima zapadziko lonse kapena zachigawo kuti atsimikizire kuti njira yoyendera njanji ndi yotetezeka komanso yogwira ntchito bwino. Izi ndi zina mwa miyezo yodziwika bwino ya sitima:
1. American Standard (AREMA Standard): yopangidwa ndi American Railway Engineering and Maintenance Association (AREMA), kuphatikizapo njanji zamitundu yosiyanasiyana ndi zofunikira, monga 115RE, 132RE, 136RE, ndi zina zotero.
2. Miyezo ya ku Ulaya: Miyezo ya ku Ulaya (EN) yapangidwa ndi European Organization for Standardization (CEN), monga miyezo ya sitima za ku Ulaya ya EN 13674, ndi zina zotero.
3. Miyezo ya ku China: Miyezo ya ku China imapangidwa ndi China Railway Corporation ndipo imaphatikizapo mitundu yosiyanasiyana ndi zofunikira za njanji, monga GB11264, GB2585, ndi zina zotero.
4. Miyezo yapadziko lonse: International Standards Organization ISO (International Organization for Standardization) yapanganso miyezo ina yapadziko lonse ya njanji, monga IS07092, IS01689, ndi zina zotero.