Galvanized
| Number Broken Wires in Running Ropes | Number Broken Wires in Standing Ropes |
| ANSI* Standard | Equipment | In One Rope Lay | In One Strand | In One Rope Lay | At End Connection |
| B30.2 | Overhead & Gantry Cranes | 12 | 4 | Not Specified | Not Specified |
| B30.4 | Portal, Tower & Pillar Cranes | 6 | 3 | 3 | 2 |
| B30.5 | Crawler, Locomotive & Truck Cranes | 6 | 3 | 3 | 2 |
| B30.6 | Derricks | 6 | 3 | 3 | 2 |
| B30.7 | Base Mounted Drum Hoists | 6 | 3 | 3 | 2 |
| B30.8 | Flotaing Cranes & Derricks | 6 | 3 | 3 | 2 |
| B30.16 | Overhead Hoists | 12 | 4 | Not Specified | Not Specified |
| A10.4 | Personnel Hoists | 6** | 3 | 2** | 2 |
| A10.5 | Material Hoists | 6** | Not Specified | Not Specified | Not Specified |
** Also remove for 1 valley break.
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the “cup and cone” configuration at the fracture point
(a). The necking down of the wire at this point shows
that failure occurred while the wire retained its ductility.
Shear-tensile fracture (b) occurs in wire subjected to a combination
of transverse and axial loads. Fatigue breaks are usually characterized
by squared-off ends perpendicular to the wire either straight
across or Z-shaped (c & d).
