Cover does not open when in on position

[pfalcon]

Wow! You guys are working hard to find something right in front of you.

Go and see NFPA70E:2009:120.2

Most disconnecting means double as the Lockout point.

Even though NFPA79:2007 is an adoptable standard for industrial machinery (that is, not required by law), it still does a great job describing "Good Practice". Many people follow the prescribed practices in NFPA79 because

1) They encourage you to install your lock BEFORE opening the door, since the door is interlocked to the disconnect.
2) They permit hot troubleshooting when required because it can be bypassed with common tools or a key.

Remember that many rotary disconnects fail to abide by NFPA79/70E because either:
1) The lock cannot be applied until after the door is opened (through the door rotary disconnect).
or
2) The disconnect can be hand operated after the door is open (door mounted rotary disconnect that separates from the disconnect as the door opens).

 

[JustWork]

wow! You guys are working hard to find something right in front of you.


I did look into this and as you mentioned "Even though NFPA79:2007 is an adoptable standard for industrial machinery (that is, not required by law), it still does a great job describing "Good Practice". Many people follow the prescribed practices in NFPA79 because"

If you check my first few post I was looking for when it is required, why it is required, who enforces the installation of it. Many things can be performed that is not required by law, but we can't tell the inspectors that it is just good practice to install the mechanical interlock. I was looking for it cut and dry so if this little issue evershows up again I will now have the tools to address it if you know what I mean.