Small Electric Shock PPE
There is a step in a process where we need to reach inside a computer, grab a power connector, and disconnect it. Then we are free to work on the part we need to work off with it safely powered off.
When the power connector is wired sometimes it has its wires stripped back too far leaving a small amount of bare wire that can be touched when grabbing the connector to disconnect.
I know the hierarchy and I am on the PPE step mainly because I am doing a PPE assessment and JHA together.
Is there glove that would protect in this situation?
I found rubber insulated gloves with the following standard:
The ASTM D120 standard details the voltage levels for rubber-insulating gloves in six levels:
Class 00: 500 AC and 750 DC
Class 0: 1,000 AC and 1,500 DC
Class 1: 7,500 AC and 11,250 DC
Class 2: 17,000 AC and 25,500 DC
Class 3: 26,500 AC and 39,750 DC
Class 4: 36,000 AC and 54,000 DC
Would it satisfy to write for the PPE assessment they should use rubber insulated gloves rated to the correct voltage?
Comments (7)
Are you talking about a regular consumer grade PC? I'm like probably 2 decades out of date, but when I was building PCs, that max output from an ATX power supply was 12V. Though there are sometimes 400V capacitors on the motherboard.
Also, is there a reason that the computer isn't shut off/unplugged prior to removing the power cable? Give the capacitor time to discharge, verify, then you should be good to go.
As Tim mentioned, it depends on the voltage. Make sure that when they're wearing rubber insulating gloves, that they are wearing leather protectors over them. If they don't wear the leather protectors, it reduces the rating by one class (e.g., class 2 would now be the equivalent of class 1), except for class 00, which is then reduced by 50%.