ALL ELECTRICIANS OUT THERE I KNOW THIS SOUNDS STUPID BUT YOU NEED TO BE EXTREMELY CAREFUL...BEWARE OF WORKING ON INSTALLATIONS YOU THINK ARE SWITCHED OFF.

i have just had a bad experience i went to site switched off a plug circuit...tested the circuit and it was off so i removed the plug...a couple minutes later there was a load bang and the e/l unit tripped...the place i was working was having the daily load shedding...i arrived at 9.55 and at 10.10 the power came back on while i was working on the circuit...the plug circuit which i had switched off was not the correct one...i should have tested first to see if the power was on then switched off the correct circuit...i was lucky it was just a plug circuit which was on earth leakage...

i know this sounds silly all electricians and especially their staff who might not be as switched on as you are need to be more vigilant and on their toes with this load shedding...dont just assume the power is off
CARRY OUT THE CORRECT ISOLATING PROCEEDURES AND BEWARE OF GENERATES WHICH COULD START UP OR THE POWER COULD COME BACK ON WHILE YOU ARE WORKING ON THE SYSTEM ...PEOPLE ARE NOT FITTING THE CORRECT LABELS ON THE DBs INDICTING THE PRESENCE OF A GENERATOR...THERE ARE LOTS OF UNSKILLED PEOPLE INSTALLING DOING GENERATOR INSTALLATIONS AND OF COURSE THE FOOLS PLUGGING THE GENERATOR INTO THE SOCKET OUTLET.

THE OTHER PROBLEM IS PEOPLE ARE CONNECTING GENERATOR AFTER THE DB MAIN SWITCH WHICH MEANS EVEN IF YOU SWITCH OFF THE MAIN SWITCH THERE COULD STILL BE 230/400 VOLTS FEEDING INTO THE INSTALLATION.