The stay wire and preformed guy grip shall be suitable for continuous use outdoors in tropical areas at altitudes of up to 2000m above sea level,
humidities of up to 90%, average ambient temperature of +30ºC with a minimum of -1ºC and a maximum of +40ºC and heavy saline conditions
along the coast.
The base metal shall be steel made by the open-hearth, basic-oxygen or electric-furnace process and of such quality and purity that, when
drawn to the size of wire specified and coated with zinc, the finished strand and the individual wires shall be of uniform quality and have
the properties and characteristics as specified in this specification.
The galvanized steel wires used in the construction of the stay wire shall comply with the requirement of BS 443.
The stay wire shall be manufactured as per the requirement of BS 183.
The outer wires of all strands shall have a right-hand lay (Z).
All wires shall be stranded with uniform tension. Stranding shall sufficiently close to ensure no appreciable reduction in diameter when
stressed to 10% of the specified wire strength.
The wires shall be concentrically twisted with a uniform pitch of not less than 10 nor more than 18 times the specified nominal diameter
Joints made in individual wires shall be accepted provided there is not more than one joint in any 45m section of the completed strand.
Joints made during stranding shall be protected against corrosion.
The standard sizes for the stay wires shall be as follows:-
NEAREST EXISTING SIZE.