Galvanized steel wire strand

Specifications

Galvanized steel strand stay wire and aerial earth wire for BS 183, ASTM IEC 888 1 x 7, 1 x 19 and 1 x 37mm
Overhead ground (or static) wire (for protection against lighting)
1 x 7mm construction strand with grade-A galvanization
With group-1 tensile strength is mostly used for this application
Strand is installed at the top of steel tower and functions as a ground (earth) wire to protect the aluminum conductor with steel reinforced (ACSR) from lightening
With its normal lifespan of 20 to 30 years
Thick galvanized layer better than or equivalent to that of galvanized strand for ACSR is recommended
For telecommunication cable (self-supporting type)
Used to support self-supporting (S.S) telecommunication cable, which has replaced obsolete lead plated cables
1 x 7 strands with group-1 tensile strength and grade-A galvanization are widely used for this application
Telecom cable and galvanized strands are coated together with polyethylene insulation
Messenger wire to support utility lines
Used at train railroad, streetcar line and subway railroad
Either 1 x 7 or 1 x 19mm construction strands are used
As guying wire (for poles and towers)
Used as guying wire for various poles and towers for power cables and telecom cables
Industry is moving towards using higher strength strands with better corrosion protection for this application
For ACSR (aluminum conductor and steel reinforced)
Used to support ACSR cable as the core strength member
For power cables with above 60kW capacity
ACSR is widely used in replacement of hard
CU strand conductors in comparison with hard CU cables, ACSR weighs 20% less with 1.7 times increase in strength so that the interval between power transmission towers can  be doubled