Let's think about this for a moment. The output power from a limited power source is limited such that there is insufficient energy to start a fire. However, the purpose of a a cigarette lighter is to start a fire. No, it is not a limited power source. Can you make it one? Yes, by placing the proper current limiting device in the plug. Richard Woods Sensormatic Electronics Tyco International
-----Original Message----- From: Charles Blackham [mailto:[email protected]] Sent: Wednesday, September 18, 2002 5:07 AM To: '[email protected]' Subject: Current from Car 12V cigarette lighter socket Some of our equipment runs off 12Vdc. Typically this is provided by a UL Listed ac/dc power supply that meets the Limited Power Source requirement of IEC60950. We wish to be able to power this from the 12V "cigarette lighter" socket in a car: Is there a standard that covers the output of 12V sockets in cars? Do they have to meet something similar to the Limited Power Source requirements of IEC60950? regards Charlie Blackham Senior Approvals Engineer Airspan Communications Ltd.
