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

Rophor Dryer Extension Cord 3 Prong, 30 Amp NEMA 10-30P to 10- 30R with Lighted End, Use for Dryer Power Extension and EV Charging, 125V/250V, 50 Feet, UL Certification : Tools

1.5FT 3 Prong to 4 Prong Dryer Adapter Cord,Nema

Conntek 30-Amp NEMA 10-30P Dryer Plug to 50-Amp Electric Vehicle Adapter Cord for Tesla

LEV 5207-S10 - Leviton 3W 30A 125/250V Flush Mount Dryer

Charging Setup 10-30R

ELEGRP 30 Amp125V, NEMA 10-30R Surface Mount Power Outlet, Single Straight Blade Range and Dryer Outlet Non-Grounding, Black 2203 - The Home Depot

【Dryer Power Extension Cord】- This power extension cord is 10 feet long,which provides sufficient length,ideal for dryer power cord extension.So,there

3 Prong Dryer Extension Cord 10 Feet,NEMA 10-30P to 10-30R Heavy Duty STW Extension Cord,30Amp 125V/250V 10-AWG Gauge,Black

Connecting Heater (6-30P) to Dryer Outlet (10-30R) : r/AskElectricians

AC WORKS 1ft NEMA 10-30P to NEMA 6-20R with Breaker 20-Amp 3-wire

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

Learn Everything About Types of Power Cord