Vintage Fuseboard Schedule

[KEV 1 N]

Found this today (circa 1958)....must have been tedious “clacking” these out on a type writer back in the day!

 

[telectrix]

the letter B requires a bit of re-alignment. maybe he'd not got his hammer handy.

 

[Andy78]

Found this hand written user guidance next to an old consumer unit the other day.

 

[MFS Electrical]

Sorry for being thick but could one of the older guys enlighten me as to what size roughly in metric 19.052 is and also 7.029

 

[Gavin John Hyde]

I think @Pete999 left his course notes on the job from his apprenticeship days.

 

[snowhead]

Sorry for being thick but could one of the older guys enlighten me as to what size roughly in metric 19.052 is and also 7.029

25 and 2.5

Comparison of imperial & metric conductor sizes - https://www.daenotes.com/electronics/industrial-electronics/comparison-of-imperial-and-metric-conductor-sizes

 

[ipf]

Found this hand written user guidance next to an old consumer unit the other day.

View attachment 47820

View attachment 47821

View attachment 47822

I think they were done by an apprentice, too.
Looking at the first photo...….never come across 13 amp fuse wire.

 

[Andy78]

I think they were done by an apprentice, too.
Looking at the first photo...….never come across 13 amp fuse wire.

I was thinking more copied down by a diyer from a handbook. If it was being dictated you can imagine 30 being mistaken for 13 too.

 

[Deleted member 26818]

Did you nick that from the White House?

 

[Lucien Nunes]

could one of the older guys enlighten me as to what size roughly in metric 19.052 is and also 7.029

Hmm, I wonder whether I'm supposed to count myself in that category or not?

For the benefit of the younger guys, those cables sizes are not quite written correctly on the schedule; they should be 7/.029 and 19/.052, meaning seven strands of 0.029 inches diameter etc. The quickest way to convert to metric is to multiply 507 by the number of strands and by the square of the diameter.

507 x 7 x (0.029)² = 3.0mm²
507 x 19 x (0.052)² = 26mm²

Also, guys of all ages, we need stuff like this for the museum. Anyone finding old paperwork from electrical contractors, drawings, schedules, invoices etc please let me know if you don't want it.

 

[KEV 1 N]

Hmm, I wonder whether I'm supposed to count myself in that category or not?

For the benefit of the younger guys, those cables sizes are not quite written correctly on the schedule; they should be 7/.029 and 19/.052, meaning seven strands of 0.029 inches diameter etc. The quickest way to convert to metric is to multiply 507 by the number of strands and by the square of the diameter.

507 x 7 x (0.029)² = 3.0mm²
507 x 19 x (0.052)² = 26mm²

Also, guys of all ages, we need stuff like this for the museum. Anyone finding old paperwork from electrical contractors, drawings, schedules, invoices etc please let me know if you don't want it.

If you PM me an address and I’ll post it out to you.....I’ve got a few stamps.

 

[KEV 1 N]

Did you nick that from the White House?

Haha.....West Wing!

 

[Lucien Nunes]

Fantastic! Thank you, address follows. I think we've got a fuseboard with Grierson's label on the front but not 12-way unfortunately, so we can't pretend the schedule goes with it.

 

[KEV 1 N]

Fantastic! Thank you, address follows. I think we've got a fuseboard with Grierson's label on the front but not 12-way unfortunately, so we can't pretend the schedule goes with it.

How many ways is it? I might come across some more.