ghostbuster
Senior Member
- Location
- Great White North
Failure Waiting To Happen
Is there anything wrong with these pictures??
Is there anything wrong with these pictures??
Friday's Failure Forum Picture-Apr 13
- Thread starter ghostbuster
- Start date
- Status
Why do these lugs always have to be so sharp???
I carry a roll of thick scotchkote tape that I put on the offending edges in situations like this. 2 layers + 33 on top pads the edge plenty. Another option is 1-2 pieces of heat shrink on the vulnerable wires. Even this may not last 40 years though, if the wires move around a lot due to motor starting and inrush, they may chafe very quickly. The worst is if they don't short, and somebody comes along and moves the wire just enough...and things blow up in his face
I carry a roll of thick scotchkote tape that I put on the offending edges in situations like this. 2 layers + 33 on top pads the edge plenty. Another option is 1-2 pieces of heat shrink on the vulnerable wires. Even this may not last 40 years though, if the wires move around a lot due to motor starting and inrush, they may chafe very quickly. The worst is if they don't short, and somebody comes along and moves the wire just enough...and things blow up in his face
ramdiesel3500
Senior Member
- Location
- Bloomington IN
What happend to the buss in the bottom picture? Looks like it has been drilled or something. Is that the problem you are referring to?
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
No, the issue is shown in the enlargement: the upper bus's right-side conductor is pressing against the middle bus's left-side lug.ramdiesel3500 said:
The conductors should have been bent in such a way that there should have been space netween these surfaces.
I vote that the installer should have to go back on his own time, and with the equipment energized!
No excuse. Boo! Hiss!
Added: I carry a couple of pieces of PVC to use as bending handles. Slide one over the wire, bend, slide up, bend again, etc.
Last edited:
LawnGuyLandSparky
Senior Member
Who the heck goes Red-Back-Blue?
Coulter,
I don't mean to be argumentative but.....
Therem
1. Mathematics. a theoretical proposition, statement, or formula embodying something to be proved from other propositions or formulas.
2. a rule or law, esp. one expressed by an equation or formula.
3. Logic. a proposition that can be deduced from the premises or assumptions of a system.
4. an idea, belief, method, or statement generally accepted as true or worthwhile without proof.
Law
A statement describing a relationship observed to be invariable between or among phenomena for all cases in which the specified conditions are met: the law of gravity.
Mathematics A general principle or rule that is assumed or that has been proven to hold between expressions.
My therem is that your footer is inaccurate..
Regards
I don't mean to be argumentative but.....
Therem
1. Mathematics. a theoretical proposition, statement, or formula embodying something to be proved from other propositions or formulas.
2. a rule or law, esp. one expressed by an equation or formula.
3. Logic. a proposition that can be deduced from the premises or assumptions of a system.
4. an idea, belief, method, or statement generally accepted as true or worthwhile without proof.
Law
A statement describing a relationship observed to be invariable between or among phenomena for all cases in which the specified conditions are met: the law of gravity.
Mathematics A general principle or rule that is assumed or that has been proven to hold between expressions.
My therem is that your footer is inaccurate.
.Regards
brian john
Senior Member
- Location
- Kilmarnock, Va
- Occupation
- Retired after 52 years in the trade.
My Picture
My Picture
First I want to apologize for being a slacker. I posted this on another site. Lots of reasons for my slacker mentality. I have been busy, on the phone, kids, dog ate the picture (DIGITAL?) ok just plain lazy.
This is a bus tap for an emergency panel, #2 AWG, 1000 amp switchboard, with provisions for a bus tap, few issues though.
1. The conductor termination connectors are two small for the mounting
holes in the bus, so they put steel washers behind the termination
connectors.
2. The conductors enter the termination connectors from the top.
3. The tap was somewhere between 40-50 feet to the OCP.
My Picture
First I want to apologize for being a slacker. I posted this on another site. Lots of reasons for my slacker mentality. I have been busy, on the phone, kids, dog ate the picture (DIGITAL?) ok just plain lazy.
This is a bus tap for an emergency panel, #2 AWG, 1000 amp switchboard, with provisions for a bus tap, few issues though.
1. The conductor termination connectors are two small for the mounting
holes in the bus, so they put steel washers behind the termination
connectors.
2. The conductors enter the termination connectors from the top.
3. The tap was somewhere between 40-50 feet to the OCP.
- Status