Professional Standard - Post and Telecommunication
Latest
YD/T 206.4-1997
Replace
YD 244-1981
Scope
This standard specifies the technical requirements, test methods, inspection rules, packaging, marking, transportation and storage of iron cross supports for overhead communication lines. This standard applies to cross brackets used for intersections in curved screw-leg lines.
YD/T 206.4-1997 history
1997YD/T 206.4-1997 Software for overhead communication lines Cantilevers