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Why do you have to fit a light or buzzer in the "ESSENTIAL/UPS DB" in the passage or kitchen inside the house , and why it shouldn't be in the trunking below the inverter or in the AC control box next to the inverter in the garage, where the batteries are installed at ground level without any mechanical protection.
Another common one is the argument about the solar wires in conduit and reason you cannot use an armoured cable, how many people know why you cannot use a 4 core armoured cable for DC solar, even though it has insulation around the wire, another layer around the insulation an armoured section and an outer sheath, yet it is not suitable to be used for solar DC, or why you have to put single insulated cables in separate conduits ? Then someone will say but people put 2 wires in pvc conduit, yes you can, tell what the conditions that you would need to comply with before you can install 2 wires in one conduit used for solar DC ?
the neutral earth bond is another one, and where the bond must take place is just as crazy as people who still believe that it is fine to do a permanent bond on a TN-S system.
The earth spike is another one.
Lets not even get started with surge and lightning protection and bonding,
Let me say this again, the regs are not there to be studied parrot fashion, they are there to guide you and help steer you in the right direction, it doesn't help if you dont understand why the regulations was created, just knowing that a light or audible sound must be installed as per a reg, means nothing if you dont know why.
Electricians are not design engineers and maybe this is where the industry has gone wrong, too many sparkies are doing work they shouldn't be doing.
An example when an electrician goes to site to work, they dont design all the transformers requirements, the fault levels, the cables sizes, the wireway support structures, the cable routes, the size of the ducting, cable trays etc etc etc., they are supplied with a drawing with all the relevant data, presented to you on site, your job as the sparkie is to install the equipment as per the bill of qualities, terminate and connect the wiring, then the registered person who has been monitoring the project to make sure the installation is completed as per the detailed document supplied by the electrical engineer, will then as the cables are terminated and ready for connection will carry out insulation resistance tests on the cables before they are connected, then follow up with the continuity tests and then the live tests as required, wearing flash proof safety gear and tools equipment withstand the voltage as set out in the safety guidelines.
Another common one is the argument about the solar wires in conduit and reason you cannot use an armoured cable, how many people know why you cannot use a 4 core armoured cable for DC solar, even though it has insulation around the wire, another layer around the insulation an armoured section and an outer sheath, yet it is not suitable to be used for solar DC, or why you have to put single insulated cables in separate conduits ? Then someone will say but people put 2 wires in pvc conduit, yes you can, tell what the conditions that you would need to comply with before you can install 2 wires in one conduit used for solar DC ?
the neutral earth bond is another one, and where the bond must take place is just as crazy as people who still believe that it is fine to do a permanent bond on a TN-S system.
The earth spike is another one.
Lets not even get started with surge and lightning protection and bonding,
Let me say this again, the regs are not there to be studied parrot fashion, they are there to guide you and help steer you in the right direction, it doesn't help if you dont understand why the regulations was created, just knowing that a light or audible sound must be installed as per a reg, means nothing if you dont know why.
Electricians are not design engineers and maybe this is where the industry has gone wrong, too many sparkies are doing work they shouldn't be doing.
An example when an electrician goes to site to work, they dont design all the transformers requirements, the fault levels, the cables sizes, the wireway support structures, the cable routes, the size of the ducting, cable trays etc etc etc., they are supplied with a drawing with all the relevant data, presented to you on site, your job as the sparkie is to install the equipment as per the bill of qualities, terminate and connect the wiring, then the registered person who has been monitoring the project to make sure the installation is completed as per the detailed document supplied by the electrical engineer, will then as the cables are terminated and ready for connection will carry out insulation resistance tests on the cables before they are connected, then follow up with the continuity tests and then the live tests as required, wearing flash proof safety gear and tools equipment withstand the voltage as set out in the safety guidelines.