New Standard from Last Update.

1. SCOPE

1.1 This standard (Part 4) stipulates materials and loads to be adopted in the design of latticed switchyard structures for overhead transmission network.

1.1.1 Permissible stresses and other design parameters are covered in IS 802 (Part 1/Sec 2) of this standard. Provisions on fabrication including galvanizing, inspection and packing have been covered in IS 802 (Part 2) and same shall be considered as valid for this standard.

1.2 This standard does not cover any tubular (cement or steel), RCC or girder/channel supported/weld fabricated structures.

2. REFERENCES

The standards listed in Annex A contain provisions which through reference in this text, constitute provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated.