QUOTE(slimey @ Apr 2 2018, 07:09 AM)
15-16A when running at max power.
cost depends........but can easily run up to rm100 i think.
electricuted or not depends on whether the ground is properly wired and working plus a working rcd for safety purpose.
undersized wire plus an oversized mcb will cause the wire to get hot and burn when being run exceeding the capacity of the wire for long period.
The guidelines for domestic wirings in residential buildings for standard 3kW water heaters are 20A mcb with a 10mA trip RCD wired to a 20A DP neon switch terminated to a ceiling rose or directly connected to the water heater wired 4mm2 in conduit from DB. You can replace the water heater mcb/RCD with a similar rated RCBO to save space in your DB.
Be prepared to pay around rm500 on average for the above. A wireman who qoutes less might be cutting corners or using existing wiring. Get the wireman to stamp in his PW number on his invoice to make him responsible for the installation.. to
This is just a general guide based our energy commission (ST) for a standard 3 BR apartment. Ask to witness the insulation test, continuity test of the phase, neutral and earth conductors and the RCD trip test. The RCD trip time must be within 200ms to the nominal trip on the device.
A proper installation must be tested for correctness, safety and the client's peace of mind.
Just my thoughts to share..
This post has been edited by Richard: Apr 2 2018, 08:27 AM