Service upgrade failed because of 3 wire SER range wire

[tortuga]

Route an egc from the branch-circuit extension to one of the locations listed in 250.130(C).

This is often simpler than you think as the ECG only needs to be a #10.
Keep in mind ranges/ovens since around 1965 use 'infinate' switches and the only load on the noodle is a clock and the oven light.
They do make '240 volt' ranges now, so it might be more cost effective to convert the NEMA 10-50 to a 6-50, as I dont think code requires a neutral to a range per say.

 

[retirede]

This is often simpler than you think as the ECG only needs to be a #10.
Keep in mind ranges/ovens since around 1965 use 'infinate' switches and the only load on the noodle is a clock and the oven light.
They do make '240 volt' ranges now, so it might be more cost effective to convert the NEMA 10-50 to a 6-50, as I dont think code requires a neutral to a range per say.View attachment 2554590

I’ve seen many an old range with 120V convenience receptacles on the control panel along with the clock.

They seemed to be positioned perfectly so that the cord plugged into them laid right across the stovetop heating elements!

 

[Sparkey1981]

This is what I have been doing I also always install a main breaker panel for a few reasons
https://forums.mikeholt.com/threads/100-amp-service-upgrade.2552421/

 

[tortuga]

I’ve seen many an old range with 120V convenience receptacles on the control panel along with the clock.

They seemed to be positioned perfectly so that the cord plugged into them laid right across the stovetop heating elements!

I really think all new resi cooktops/ovens/ ranges currently sold are really just 240 volt load thus NEMA 6-50 should be the new standard range outlet rather than 14-50.
There is no reason for us to run (or re-run) a 8awg neutral for a led oven light and clock that puts less than a amp of load on the line.
I'd bet a 6pack zero new ranges use any 120V for heating.

That is allot of wasted money and time replacing otherwise good 3 wire cable...

Even if you wanted a old range to run off a 6-50 for the 10 amp outlet and a 120V clock you could retro fit a 240/120 transformer in the range for less than the 4 wire conversion in most old houses.

 

[GeorgeB]

I'd bet a 6pack zero new ranges use any 120V for heating.

My, and some current, GE ___GAS___ ranges have an electric heater for a warming drawer. I just wasted 20 minutes trying to find power ratings and failed. SUPPOSEDLY settable in the 140-240F range somehow. Literature suggests low-medium-high?

We've never used the feature; that drawer is used for large flat pans.