General questions on volt drop.

[ta-electrical]

1. Discharge lighting is on a 16A mcb, can it stay this way or will it need to be updated to RCBO for the new regs?

2. Radial sockets 50 metres away, on 32A RCBO, wired in singles, in trunking and conduit.
What size cable should be used taking voltage drop into account?

3. 3 phase motor with rating 3000W, 50 meters away, 2.5mm singles.
Will the voltage drop comply with new regs? Or shall i use 4mm cables?

Thanks in Advance.

 

[Amp David]

Tell us where you are and someone might come and do the job for you

 

[Deleted member 19807]

1. Discharge lighting is on a 16A mcb, can it stay this way or will it need to be updated to RCBO for the new regs?

2. Radial sockets 50 metres away, on 32A RCBO, wired in singles, in trunking and conduit.
What size cable should be used taking voltage drop into account?

3. 3 phase motor with rating 3000W, 50 meters away, 2.5mm singles.
Will the voltage drop comply with new regs? Or shall i use 4mm cables?

Thanks in Advance.

What do we get for doing your homework?

 

[Sintra]

Guys give the op a break if you can't or won't help then don't reply

 

[sparks1234]

1. Discharge lighting is on a 16A mcb, can it stay this way or will it need to be updated to RCBO for the new regs?

2. Radial sockets 50 metres away, on 32A RCBO, wired in singles, in trunking and conduit.
What size cable should be used taking voltage drop into account?

3. 3 phase motor with rating 3000W, 50 meters away, 2.5mm singles.
Will the voltage drop comply with new regs? Or shall i use 4mm cables?

Thanks in Advance.

No real reason for RCBO if the installation allows, ie no buried cables, TT etc

 

[telectrix]

2. radial 32A min. 4mm cable. 3. 2.5mm should be OK for this size of motor. it's only 5-6A per phase ( approx. guesstimate as i not got the brb to hand)