Hi,
Just wanted some thoughts on protecting control and instrumentation from welding damage.
We had a PLC and drive fail after some welding work was done by an external contractor and want to prevent a repeat.
Does anyone have a policy welders must follow to prevent this sort of thing or any ideas of easy specific things to do.
I was thinking
- welding equipment to be inspected before work, particularly cable and connections
- welder ground connection must be sound and within 30cm of the welding area
- if possible isolate the equipment being worked on (would this accomplish anything if earth is still connected and why?)
Any input appreciated
Just wanted some thoughts on protecting control and instrumentation from welding damage.
We had a PLC and drive fail after some welding work was done by an external contractor and want to prevent a repeat.
Does anyone have a policy welders must follow to prevent this sort of thing or any ideas of easy specific things to do.
I was thinking
- welding equipment to be inspected before work, particularly cable and connections
- welder ground connection must be sound and within 30cm of the welding area
- if possible isolate the equipment being worked on (would this accomplish anything if earth is still connected and why?)
Any input appreciated