Electrical heating of SUB's and SUF's
CerCell offer 110 VAC and 230 VAC Electrical-Heating-Blanket's (EHB) for thermal control purposes controlled by PCS (Process-Control-System) from various manufacture. The different sizes cover from OD 130 to OD 250 mm CerCell products.
As to the huge variety of voltages and plugs for mains connection we suggest to look here "Mains electricity by country".