PDH Authority training

This course provides function specific hazmat training on placarding. Learn how to select appropriate placards for vehicles transporting hazardous materials. Applicaple to hazmat employees responsible for placarding.

This course gives an overview of arc flash hazards and concisely reports the different causes, nature, findings, directions and processes related with arc flash hazards. In order to address the hazard, it is first required to formulate an understanding of the process.

This course was made as a reference with helpful and easily-accessible instructions on how to work safely with PV systems. Some recommendations are based on the common sense and they will help readers to keep safe. Course includes description of specific hazards, their frequent causes, and ways to prevent and avoid them.

Since the impedance of a transmission circuit is relative to its length, for distance measure it is suitable to use a relay able to measure the impedance of a circuit up to a present point (the reach point). Such a protection relay is known as a distance protection relay and is made to function only for faults happening between the protection relay location and the chosen reach point, therefore providing discrimination for short circuits that may happen in different line portions.