Field engineering

[ptonsparky]

The service tech must not have had an account in this area (from Minnesota), but I have to admire the ingenuity and soldering skills. The far left set.
View attachment 5582

 

[jumper]

I hope you do not mind, I hate clicking back and forth to see a photo.

 

[jumper]

Am I seeing this right?

The fuses are soldered in?

 

[Cow]

I was just thinking how much it would of sucked to solder the new ones in, just to have them blow again...

I guess then he could solder a piece of steel to the front to take care of that...

 

[John120/240]

Is this a standard installation, I don't see any means to attach a cover or

shield ?

 

[ptonsparky]

I do not know what I have to do to get the photo to show. Looked fine when I posted from my end.

30 amp 250 volt soldered to 8 amp 600v

 

[Cow]

Is this a standard installation, I don't see any means to attach a cover or

shield ?

It looks like a control panel out of a reefer unit....

 

[jumper]

I do not know what I have to do to get the photo to show. Looked fine when I posted from my end.

30 amp 250 volt soldered to 8 amp 600v

You used an attachment, I "direct linked" the photo through photobucket and used the picture icon in the reply toolbar.

480Sparky/ Ken has the process in the FAQ.

Here it is.

http://forums.mikeholt.com/showthre...-Asked-2005-NEC-Questions?p=760873#post760873

 

[ptonsparky]

It looks like a control panel out of a reefer unit....

Cooler for potato storage units. 400 amp 480v. These units a well maintained, normally. Don't know what happened here. My guess the Service tech will be getting a call.

 

[SG-1]

I do not know what I have to do to get the photo to show. Looked fine when I posted from my end.

30 amp 250 volt soldered to 8 amp 600v

These are 38 amp double barrel fuses now. I wonder what the melting curve looks like ? :roll:

 

[Jraef]

The original fuses were rejection type, the little teats on the end have to go into the clip to make contact. The replacements were not rejection type and without the teats they will not work. So he soldered the new fuses onto the old blown fuse carcasses so they would make the connection. I've had to do that myself as a temporary fix on motor starter CPT primary fuses, hopefully he ordered the correct fuses and left instructions on replacing them.

When down time is costing someone thousands of dollars an hour and they ordered the wrong fuses, another day of not working drives a lot of ingenuity.

 

[ptonsparky]

One of those temp fixes that extended on out a year or so.

Even I stock CCMR10s and almost everthing but an 8 apparently.

 

[infinity]

Jraef nailed it. The new fuses wouldn't fit due to the rejection feature so he had to improvise.

 

[broadgage]

Am I seeing this right?

The fuses are soldered in?

I dont think that the fuses are soldered into the fuseholders.
It would appear that correct replacement fuses were not to hand, and that the replacements were too big to fit the fuseholder. Therefore the new larger fuses have been soldered to the old, presumably blown, ones.

This might be just barely acceptable in an emergency if the replacement fuses were correctly rated for the application.
Unfortunatly it would appear that the new fuses are 30 amp, replacing 8 amp, and also of a lower voltage rating.

 

[kwired]

He could have saved a lot of time by wrapping the blown fuses with aluminum foil and re installing them:happyyes:

 

[ptonsparky]

He could have saved a lot of time by wrapping the blown fuses with aluminum foil and re installing them:happyyes:

Gum wrappers aren't metallic anymore. Conspiracy of fuse mfgs.:happysad:

 

[Barndog]

I dont think that the fuses are soldered into the fuseholders.
It would appear that correct replacement fuses were not to hand, and that the replacements were too big to fit the fuseholder. Therefore the new larger fuses have been soldered to the old, presumably blown, ones.

This might be just barely acceptable in an emergency if the replacement fuses were correctly rated for the application.
Unfortunatly it would appear that the new fuses are 30 amp, replacing 8 amp, and also of a lower voltage rating.

Either way looks like a hack job. He could of changed out the fuse block very easily or went a got new fuses. and I wouldnt be so sure the other fuses behind are blown. If he would do that work i wouldnt put anything past him

 

[petersonra]

Am I seeing this right?

The fuses are soldered in?

It appears that the rejection type fuses blew so he soldered non-rejection type fuses across them.

 

[Cow]

Cooler for potato storage units.

I knew it looked familiar.