It refers to the devices and supplies which are developed and constructed for a special purpose or function in an electrical installation works.

It is a form used in the electrical installation and maintenance field for proper recording of tools, materials, supplies, and equipment, it may also include their condition, location or status

These are hand implements which serve as an extension of the hand and powered by manual labor which add speed, power, and accuracy in any electrical work. 

This rectangular electrical shaped box where the flush type switch and flush type convenience outlet is attached or installed

It serves as passage and protection of the electrical wires which can be made of metal or plastic, also known as electrical pipes