Table of resistivity and condctivity

Specifications and weights of cables under different standards.

The abbreviation is made up of two letters, the first, lowercase, identifies the current interruption field, it can be (g or a), the second capital the category of use. According to IEC 60269–1

The standard resistor values are organised into a set of series of values known as the E-series .The different values are spaced such that the top of the tolerance band of one value and the bottom of the tolerance band of the next one do not overlap.

The characteristics and certification of the fuses are usually defined on the fuse label. UL and CSA are the most common fuse certifications used in North America.