List 6 items that determine the quality of the earth resistance during earthing.
State 2 advantages and disadvantages of the conduit pipe wiring system.
Explain the working principles of 2 modes of low voltage installation.
A client wants you to perform the installation of a room; a ceiling fan, two switches at different locations, 3 (three) 13 amperes power sockets are all expected to be in the installation and are all taking power from a particular installation.

Question

GinnyAnswer · Answer

The quality of earth resistance is influenced by soil composition, moisture, temperature, the depth of grounding electrodes, material, and nearby conductors. The conduit pipe wiring system offers advantages such as protection and safety but has disadvantages including higher costs and complexity of installation. Low voltage installations can operate in either direct current or alternating current modes, each suited for different applications. ;

Answered by GinnyAnswer | 2025-07-07

Anonymous · Answer

Earth resistance is determined by factors such as soil composition, moisture, temperature, grounding depth, material, and nearby conductors. The conduit pipe system is protective and safe but can be costly and complex. Low voltage installations are commonly implemented in direct current or alternating current modes. 
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