I've not looked into all the industrial Twist-Lock devices in much detail, but I see there are still one or two of these which appear to have multiple uses, e.g. Leviton #3764-C & 3765-C, 4-wire rated 250V DC, 600V AC.
Re the Skilsaw incident, you might be interested to know that although 240V is standard here we do use a 110V safety supply for portable tools on building sites as a requirement of the HSE (Health & Safety Executive). It's fed from a center-grounded 55-0-55V xfmr, or on large sites 3-ph 63/110V.
