Q 1 0 0 1 0 0 cm 1 1 1 rg 0 0 0 RG 0 w BT 0 0 0 rg /Times 14 Tf 1 0 0 1 513.6259 416.6516 Tm (13) Tj ET Qġ498 0 obj/M(D:20090910081119-05'00')/AP/Rect/NM(CONKZWQPKHELJIFQ)/RC( GENERAL DESCRIPTON Controls and Indicators All Fire Commander II controls and indicators are located on the front of the control module. 12\r Pump Discharge Pressure is High at Engine Idle. 12 Pump Discharge Pressure is High at Engine Idle. A clean agent extinguisher would also be a good alternative to the dry chemical.1446 0 objġ448 0 obj>/Matrix/Length 105> There was a C02 extinguisher at the Michigan State Championships last year when a robot caught fire, but I think I read that the pin broke, rendering it inoperable. So the question is, are C02 extinguishers a norm at field-side, and if not, why not? It seems like it would be a good idea for one to travel with every field setup. I will say that the person with the extinguisher here did show some restraint, and didn’t go too crazy with it, and he probably did not have a C02 extinguisher at his disposal. However, if it ever did catch fire, I would not be too happy if an over-zealous volunteer emptied an ABC extinguisher into our multi-thousand dollar creation. I would never expect for one of our robots to ever catch fire, because we build them to high standards, and we properly crimp, torque, and insulate our electrical connections.
And not to mention, you don’t want to breathe it either. It is corrosive to aluminum, paint, and other materials, and finds its way into every nook and cranny, making for an absolute cleanup nightmare.
The dry powder chemical in ABC extinguishers is very fine, very nasty stuff. “Never point an ABC fire extinguisher at anything you aren’t prepared to completely destroy.” “If the fire didn’t destroy it, the ABC extinguisher will.” A C02 fire extinguisher would be much more appropriate. This really is not the right tool for the job. One issue I see here that hasn’t been brought up is the use of an ABC fire extinguisher. I didn’t argue because I wanted to get home. And he should know, because he’s a doctor. He gave me the same electrocution warning. Had a dead battery once in college and got a jump from a doctor. In which case you have plenty of other problems besides.
TL DR: The robot battery (and your car battery) aren’t going to electrocute you unless you stab a positive and negative wire from them into your heart. Mind you there’s plenty of other dangers from the battery, but they’re all the fire, explosion, direct-short causing a welding arc sort.
If anyone is doubtful, I can hold a demonstration at Champs where I will bravely grab both terminals of a robot battery with either hand an suffer no ill effects. Unless you have wires connected directly to your heart, it takes a lot more DC to kill you than AC. It’s important to note that DC is much less dangerous in this regard than AC. The chart on that page notes that 12 mA of AC would be noticeable after a few seconds, but not deadly. So a 12V battery can push, say, 12 mA through you.
Frc fire commander 11 skin#
Wikipedia says the resistance of wet skin is about 1 kOhms.
Frc fire commander 11 plus#
You might be badly burned if the frame is hot, but Ohm’s law plus physiology says you’re extremely unlikely to suffer any injury from the electricity itself.
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