Los planos equipotenciales de instalaciones eléctricas relacionadas con masas de agua artificiales deben unirse al sistema de conexión a tierra mediante un conductor de cobre macizo aislado, recubierto o desnudo que debe ser no menor de n.° _____ AWG.
a. 6
b. 8
c. 12
d. 16
b. 8
You might also like to view...
Technician A says that mixing small amounts of refrigerant is acceptable according to the EPA. Technician B says that each refrigerant must have unique fittings to reduce accidental mixing of refrigerants. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
Investigate the instances of unwanted exotics being released into the wild. a) What are some of the common species that have been identified as being nonnative? b) What problems are created when nonnative species invade a habitat?
What will be an ideal response?
The __________________________ assembly contains a pair of high voltage contactors that close to direct power from the DC bus to the dynamic retarding grid circuits.
Fill in the blank(s) with the appropriate word(s).
What repercussions have occurred in the North American flower growing industry as a result of the flow of fresh flowers into Canada and the United States over the past 20 years?
What will be an ideal response?