Frangible (breakaway) couplings have a calculated yield point designed for specific applications. For this reason the coupling used must match the application for which it was designed. Use of couplings in applications outside of the intended design may result in premature or catastrophic failure. Most couplings, in combination with a clamping device or mechanism, provide both mechanical and electrical frangibility. This combination of protec-tion minimizes potential damage to the unit itself and the object that strikes it.