3-wire vs 4-wire Branch Feeder

3-wire feeders to detached structures that had no other parallel metallic pathways(eg. conduit, water and gas piping, communication cabling, etc.) were allowed up until the 2008 NEC code cycle.

From then on, 4-wire feeders have been required.

4-wire feeders to panels in attached structures have always been required.

3-wire feeder to detached(no longer allowed as of 2008):

4-wire feeder to detached:

4-wire feeder to attached structure:

Under Hoist Stands

A pair of these (or more) are extremely handy to have, but at $130 each the cost would add up fast.

I’m thinking I can build these with some inexpensive angle iron centered around these (or something similar).  I’m always down for a project.  The images are links to the products.

1-1/8″-7 Hex Nut, Plain Finish, Grade 2 Steel, Right Hand

1-1/8″-7×2 ft., Threaded Rod, Steel, Grade A, Plain

Hole Punch for VIN Door Sticker

My original plan was to print my door sticker with the VIN number clear on a transparency. This would simulate the numbers being punch out like the factory sticker.  Now I’m wondering if a small punch to make actual holes in the sticker would work well.  I found this set, which goes down to 0.5mm.

Small Hole Punch Set

…or this might be a better option.

Hand Punch

I haven’t measured the holes yet, but this may be just crazy enough to work.