Page 350 - CITS - Electrician - Trade Practical

ELECTRICIAN - CITS

TASK 2: Verify the power requirements for the input available at site
1 Check the Connected load, maximum demand allotted by DISCOM
2 Calculate the input power and current from DISCOM with efficiency factor of 0.8
3 Asses to comply to DISCOM rule for ceiling use of power in Kw, if needed apply for upgradation. (Depending
on state / DISCOM , three phase power connection will be required
5 Assess the main service line power cale size match to the new charger load.
6 Select the power cable size from MCB/MCCB to the charger installation location
7 Check the existing rating of Main and DB components for the addition of EV charger
8 Replace if the fuses (use of HRC fuse is recommended), MCBs of existing installation if found to be under
rated
9 Test the voltage between Phase and neutral to be less than 2 volts.
10 Install RCCB and wire up with power cable to RCCB input with required current rating.
Install 16A,230V socket for slow charger provided by the manufacturer

TASK 3: Install the EV charging station

1 Install the EV charger at site, with minimum ground clearance specified by OEM and check the site suitability
for preventing dust and moisture. Use template supplied by OEM in manual for drilling holes in wall. (Fig 1)
2 Mount the brackets on the holes drilled. (Fig 2)

3 Install the EV charger on mounting brackets. (Fig 3)

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CITS : Power - Electrician & Wireman - Exercise 118