Soil Thermal Resistivity
Significance Soil thermal resistivity is an important parameter in various applications related to heat transfer and thermal management of underground services. Soil thermal resistivity is the ability of the soil …
Variable Frequency Drives Cable Selection
Variable frequency drives (VFDs) also known as variable-speed drives or adjustable-speed drives are used to power 3-phase AC electric motors in applications requiring greater control and power efficiency. The benefits …
Cable Size Selection for Cyclic Loads
Cable Selection Parameters The normal practice for determining the size of cables is using a continuous current operation. In this case, the cable sizing will be straightforward. What if the …
Cable Shield and Outer Sheath Grounding (Earthing)
Cable shields and the metallic sheaths or armors need to be solidly grounded on at least one point in order to operate at or near ground potential at all times. …
Identification of Conductors And Terminals – IEC 60445
The IEC Standard 60445 – Basic and safety principles for man-machine interface, marking and identification – Identification of equipment terminals, conductor terminations and conductors published in August 2010 is a …