Sandy8
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Has anyone started this module yet
Discuss 305 on the 2365 electrical cause in the Electrician Courses : Electrical Quals area at ElectriciansForums.net
Sandy, sorry don't understand your post, "electrical cause"Has anyone started this module yet
Hi does anyone know how to calculate the number of luminaries required in a room
Sounds correct.When calculating Ib for discharge luminaries, you use a multipler of 1.8....
So, if power is 1000W you × 1.8 = 1800w
6A×230= 1440W
Then In should be greater 10A.
My first reply, please someone tell me I'm on the right lines ?
HiThe diagram is not too bad but the EVC unit is not supplied with three phase, the installation origin is three phase, the EVC is single phase. The source supply might usefully have multiple additional earths along the cable. There is no indication of earthing for the EVC supply cable, which should be insulated from the EVC unit.
The local earth of the TT should be connected to both the exposed conductive parts and the charging socket. The RCD should be identified as type A or B. The actual earth fault path is not identified. However in general the correct basic principles have been applied.
The diagram is not too bad but the EVC unit is not supplied with three phase, the installation origin is three phase, the EVC is single phase. The source supply might usefully have multiple additional earths along the cable. There is no indication of earthing for the EVC supply cable, which should be insulated from the EVC unit.
The local earth of the TT should be connected to both the exposed conductive parts and the charging socket. The RCD should be identified as type A or B. The actual earth fault path is not identified. However in general the correct basic principles have been applied.
I do not think an earth path has been drawn in yet. The arrows as far as I can tell are just pointer arrows.Your earth path arrows should be going towards the ground not up towards the earthing terminal.
Do not assume that this is the answer, I am just assuming that if the car charging point is supplied with three phase then it is a three phase charging point. However I am only going by Dominik Zajecki's post that says this. If the question states that the incoming supply is three phase and it is a single phase car charging point then the first diagram would be more accurate.Interesting to learn this is the way it is in real life, I've completed my course now but I remember the question specified that the EV charging point was supplied by 3 phase, it didn't then say that only L3 would be used to supply it or anything useful like that. If I'd have known at the time, I'd have corrected my diagram. Odd that the lecturer's never mentioned it.
Reply to 305 on the 2365 electrical cause in the Electrician Courses : Electrical Quals area at ElectriciansForums.net
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