MIke Holts Daily Graphic

[kwired]

View attachment 2555354

Potentially has a violation of 334.15(C) in that drawing.

 

[kwired]

View attachment 2555376

This rule not necessary IMO. Is a step in the direction of "lets GFCI protect everything" and has no good basis. Yes I believe there was an electrocution from an AC unit that had a fault and missing or compromised EGC used as justification. Assuring there is sufficient EGC would have also saved that person.

 

[jusme123]

 

[mbrooke]

View attachment 2555317This was able help me explain to people better than I could verbally. Maybe help someone else.

Pics like that show why line to neutral loads are just dumb.

 

[don_resqcapt19]

(4) Raceway is “sealed”?

Just to prevent debris from falling in the pipe. Duct seal does the job.

 

[jusme123]

 

[jusme123]

 

[jusme123]

 

[mbrooke]

View attachment 2555317This was able help me explain to people better than I could verbally. Maybe help someone else.

This goes in depth on the topic:

ATS, Grounding Issues & Installation Considerations

This document provides an overview and discussion of automatic transfer switches, grounding issues, and installation considerations for standby power systems. It discusses NFPA 110 requirements, grounding terminology and rules, applications of 4-pole switches, fuel system considerations and...

www.slideshare.net

ATS, Grounding Issues & Installation Considerations

This document provides an overview and discussion of automatic transfer switches, grounding issues, and installation considerations for standby power systems. It discusses NFPA 110 requirements, grounding terminology and rules, applications of 4-pole switches, fuel system considerations and...

www.slideshare.net

 

[jusme123]

 

[Dsg319]

View attachment 2555564

Is it permissible to have the GEC to not be continuous on a communication system? What if you had a fitting listed for termination of more than one conductor?. I’m just curious.

 

[kwired]

Is it permissible to have the GEC to not be continuous on a communication system? What if you had a fitting listed for termination of more than one conductor?. I’m just curious.

Typically used/required intersystem bonding devices are exactly what you described.

 

[jusme123]

 

[ike5547]

Seems like a lot of these new rules could make electrical work done by professionals prohibitively expensive for those on a budget.

 

[ike5547]

Is it permissible to have the GEC to not be continuous on a communication system? What if you had a fitting listed for termination of more than one conductor?. I’m just curious.

Just use a second fitting.

 

[jusme123]

 

[jusme123]

 

[mbrooke]

View attachment 2555718

Personally, all MC cable needs to have a bond wire.

 

[gadfly56]

View attachment 2555444

I like the can of "something" at the bottom right under the floor. Who hasn't seen that at some point? Something, something, "Extra Thick".

 

[jusme123]