electrical - Existing NEMA 10-30R for dryer wired with hot hot

I'd like to change the obsolete unsafe NEMA 10-30R to NEMA 14-30R so that I can safely have a smart splitter switch for dryer and EV charging. Behind the NEMA 10-30R I see 3 wires: black, white (ta

ELEGRP 30 Amp 125/250V, NEMA 10-30R Flush Mount Power Outlet, Straight Blade Range And Dryer Outlet Non-Grounding, Black - Wayfair Canada

STARELO Locking Plug for Generator NEMA L6-30P Extension Cord End Male

Dryer Cord 3 Wire - 30 Amp Appliance Cord (Nema 10-30P and Nema 14-50P) - 4 Feet - Compatible with All Major Brands, Grey : : Home & Kitchen

How many wires do I have to hook up? My dryer only has 3 wires (back, white: hot wire and copper ground). - Quora

Manufacturer Base 3-pole 3-wire Dryer Cord 30 Amp NEMA 10-30P Flat Cord, UL Listed - Cablesgo

NEMA 14-30 EV Charging Extension Cord – SIGNAL+POWER

NEMA 10-30 dryer extension cord, 36 ft. – EVSE Adapters

Shop the best NEMA 14-30P to 10-30R Power Cord Adapter at Ubuy India. Convert your 4 prong male plug to a 3 prong female outlet for your welder or

NEMA 14-30P to 10-30R 120V240V 30 Amp 10 AWG 4 Prong Male Plug to 3 Prong Female Outlet Receptacle Welder Clothes Dryer Power Cord Adapter

NOMA 4-ft 10-in 30-Amp 4-Wire Dryer Power Cord, Black

How to wire 240 volt outlets and plugs Home electrical wiring, Basic electrical wiring, Electrical wiring

10FT 10/4 SOOW DISASTER RECOVERY <(>&<)> RESTORATION CORD WITH 14