Horizontal post insulator properties

Horizontal post insulator properties, some manufacturers do not directly provide ultimate load capacities of their post insulators. Typically they provide: MDCL (Maximum Design Cantilever Load) or RCL (Rated Cantilever Load)、SCL (Specified Cantilever Load)、RTL (Rated Tensile Load).

Horizontal post insulator properties

Specified Tensile Load:
Typically the ultimate tensile load of the insulators.
Usually the value shown is the load that puts the post in tension (away from the pole).
The compression (in towards the pole) is usually not shown.

Available for both braced and unbracedline post insulators. Should use the combined loading chart for unbraced insulators not just the MDCL and STL. Combined loading charts take into account the longitudinal loading and the interaction with the cantilever and tensile loading. Most manufacturers only provide the tensile strength of the insulator and not the compressive strength.

Horizontal post insulator properties, compression force are negative value、tensile force is positive value、vertical force is typically down and positive value、longitudinal load is positive value.

 

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