Page 289 - Electrician - TT (Volume 2)

ELECTRICIAN - CITS

Step 2: Prepare a layout of wiring on the building plan. (Fig 3)

Fig 3

Step 3: Calculate the total connected load and to decide whether it is 3phase or single phase.
Step 4: Prepare a circuit diagram showing the connections and number of lighting and power circuit(cubical
wiring model). (Fig 4)

Fig 4

Step 5: Prepare a list of electrical accessories to be procured.

Step 6: Calculate the length of different sizes of cable required, based on the load, voltage drop and number of
cables in each circuit run.
Step 7: Calculate the length of different sizes of batten / PVC casing and capping / Metal conduit required based
on the load, voltage drop and number of cables in each circuit run.
Step 8: Prepare a list of hardware like a screw, nails etc. required to execute the job.

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CITS : Power - Electrician & Wireman - Lesson 104&105