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> The canister is a total wetdream. > it and has captured o-rings. Only a moron would not understand > the problem there. For one thing, we use a surface o-ring only so that > should the light explode, the ring will blow out. George, I believe you've had scooters exploding in the WKPP, but have ever lights exploded? In an explosion, the gas expands _extremely_ rapidly, and pressure from an explosion always expands perpendicular to the 'explosive'. (Toward the walls) If a canister is to explode, almost all the pressure is on the canister walls. The area of the o-ring is way to small to "let out the pressure of an explosion". The only way of making a big enough "safety-valve" to let out gas from a canister exposion, is getting rid of the metal hatches and leave the lid loose. (I am NOT recommending this) The problem then is that you've made a projectile. My point is that there is no way of lessing the damages of a exploding canister. The only thing you can do is preventing the making of gas, and preventing sparks from accuring. Offgasing is a by far greater problem in scooters, which start and stop all the time. In my opinion, the switch in some lights is the problem, as they switch 4.1 Ampere - or more. Ill claim that a switch ALWAYS sparks when switching this big currents. (The switch in EE lights is not Ex-certified, I assume?) Ex-certified switches would be a great way to improve lights. -- Ole Martin Pedersen <olepe@in*.ed*.nt*.no*> PS: Before you start yelling, calling me an asshole, show me that the o-ring away is enough to let out all the gas of an hydrogen-air explosion. An explosion is not a fart: It is tremendous. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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