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A drop out fuse is a device that interrupts the flow of electric current when it detects an overload or a short circuit. It consists of a fuse base, a fuse carrier, and a fuse element. The fuse base is mounted on a pole or a structure and has two terminals for connecting the line and the load. The fuse carrier is a hollow tube that holds the fuse element and can be inserted or removed from the fuse base. The fuse element is a thin wire or strip that melts when the current exceeds a certain value.
A polymer is a type of material that is made of long chains of molecules. Polymers have many advantages over traditional materials such as porcelain or glass, such as high strength, light weight, resistance to corrosion, and flexibility. Polymers are widely used in various applications, such as insulation, coatings, plastics, and rubber.
A 11kv drop out fuse polymer specification is a document that describes the technical requirements and characteristics of a drop out fuse that uses polymer insulators for 11kv voltage level. The specification may include information such as:

• Rated voltage, current, frequency, and breaking capacity of the fuse
• Rated lightning impulse withstand voltage and power frequency withstand voltage of the fuse base and the fuse carrier
• Temperature rise limit and thermal stability of the fuse element
• Material, dimensions, weight, and mechanical strength of the fuse base, the fuse carrier, and the polymer insulators
• Type tests, routine tests, and acceptance tests to be performed on the fuse
• Standards and codes to be followed for the design, manufacture, testing, and installation of the fuse

One example of a 11kv drop out fuse polymer specification is given in this document. It covers outdoor, open, drop out expulsion type fuse cut outs suitable for installation in 50Hz, 11KV distribution system for protection of H.T. lines and transformer centers Tap lines. It specifies that the fuse base shall be bird-proof, two units 11 KV Polymeric Post insulator with a creepage distance (to earth) not less than 320mm¹. For Polymeric insulators, the cantilever falling load shall not be less than 5KN¹. It also provides details about the rated voltage, current, lightning impulse withstand voltage, power frequency withstand voltage, temperature rise limit, materials, dimensions, galvanizing, type tests, documentation, and inspection of the fuse.
Another example of a 11kv drop out fuse polymer specification is given in this document. It covers outdoor, open, drop out expulsion type fuse cut outs suitable for installation in 50Hz, 11KV distribution system for protection of H.T. lines and transformer centers Tap lines. It specifies that the rated voltage shall be 12 KV and the rated current shall be 100 A². It also provides details about the rated lightning impulse withstand voltage and power frequency withstand voltage values for the fuse base². It also describes the materials, workmanship, galvanizing, type tests, inspection, packing and marking of the fuse. Another example of a 11kv drop out fuse polymer specification is given in this document. It covers outdoor, open, drop out expulsion type fuse cut outs suitable for installation in 50Hz, 11KV distribution system for protection of H.T. lines and transformer centers Tap lines. It specifies that the rated voltage shall be 12 KV and the rated current shall be 100 A². It also provides details about the rated lightning impulse withstand voltage and power frequency withstand voltage values for the fuse base². It also describes the materials, workmanship, galvanizing, type tests, inspection, packing and marking of the fuse.