Power fittings are metal accessories that connect and combine various devices in the power system to transmit mechanical electrical loads and play a certain protective role. Power fittings are divided into two systems: overhead line fittings and power distribution equipment fittings, with a total of eight categories:

(1) Suspended clamps, represented by the letter C;

(2) Tension clamps, represented by the letter N;

(3) For connecting fittings, no classification represents letters, and the first character of the model is the first character of the product name, but does not repeat with the classification representative letters;

(4) Continuing fittings, represented by the letter J;

(5) Protective fittings, represented by the letter F;

(6) T-connected fittings, represented by the letter T;

(7) Equipment clamps, represented by the letter S;

(8) Busbar fittings, represented by the letter M.