- Thread Conversions & Accessories
- CMP World
Industry-wide, a fully threaded bolt is used as standard to ensure that the cable cleat can accept a range of cable diameters. However, the use of a fully threaded bolt can lead to damage to the cables during high short circuit fault conditions.
The cable cleat nut spacer from CMP Products (Patent Pending), comes as standard with all of our hinged type cable cleats, regardless of the size of cable cleat or diameter of cable needing to be restrained, and is designed to ensure the cable never comes into contact with the threaded portion of the cable cleat closure bolt.
In over 300 short circuit tests which CMP Products has conducted on our cable cleat range, tremendous forces were generated by the cables during high short circuit conditions. It is during this stage that cables can expel away from each other and try to break the cable cleat restraining them. If any sharp edges, such as threads are exposed to the cables, there may be damage to the cable insulation and, depending on the peak fault, this can be catastrophic. Where the cable insulation is sufficiently damaged, earth shortages will occur, leading to a life-threatening environment for any personnel in the vicinity.
The CMP spacer and bolt combination – one size fits all
CMP Products’ cable cleats use a partially threaded bolt in conjunction with the nut spacer, never allowing the cables to be exposed to the thread of the bolt. The use of these, along with cable cleat liners as standard, means the cables can only ever come into contact with smooth or flat surfaces.
The cable cleat can accept a range of cable diameters