acted like an electrical fuse, basically melting. two houses next door to each other, both with gas meters on fire, unusual circumstances to be sure. but from there, it gets even more unusual from a fire investigator s point of view. the fires developed in such a way that the two small fires are being dealt with. and then within a few minutes, the third house up, the door is slightly open. and all of a sudden, you can see the front door slam into the door frame. this all happens in less than a second. out of nowhere, this third house that seemingly has nothing to do with the first two fires, explodes. clark s investigation reveals the explosion is caused by a back draft. so within a split second, the
security cameras. the effect of that explosion is like a bomb. retired fire investigator chris clark is called to the scene after the fire is extinguished. he quickly discovers the chain of events that led to the blowout. on the night of the incident, the second house up was the house where the first fire engine attended what was reported to the fire service as a gas meter on fire. we could see there had been some electrical activity in and around the corrugated steel supply cable with a tube to the gas meter. if we look closely at this particular one, you can see the small holes in the tube where the electrical overcurrent has melted the tubing and allowed the gas to escape. the holes are caused by electric current passing through the stainless steel tube which has a very high resistance and
house in flames and it s captured on city security cameras. the effect of that explosion is like a bomb. retired fire investigator chris clark is called to the scene after the fir is extinguished. he quickly discovers the chain of events that led to the blowout. on the night of the incident, the second house up was the house where the first fire engine tended what was reported to the fire service as a gas meter on fire. we could see there had been some electrical activity in and around the corrugated steel supply kit with a tube to the gas meter. if we look closely at this particular one, you can see the small holes in the tube where the electrical overcurrent has melted the tubing and allowed the gas to escape. the holes are caused by electric current passing through the stainless steel tube which
has a very high resistance and acted like an electrical fuse, basically melting. two houses next door to each other, both with gas meters on fire, unusual circumstances to be sure. but from there, it gets even more unusual from a fire investigator s point of view. the fires developed in such a way that the two small fires that are being dealt with. and then within a few minutes, the third house up, the door is slightly open. and all of a sudden, you can see the front door slam into the door frame. this all happens in less than a second. out of nowhere, this third house that seemingly has nothing to do with the fire two fires explodes. clark s investigation reveals the explosion is caused by a back draft. so within a split second, the
what was called to the fire service was a gas meter on fire. we could see there had been some electrical activity in and around the corrugated steel supply cable to the gas meter. and if we look closely at this particular one, you can see the small holes in the tube where the electrical overcurrent has melted the tubing and allowed the gas to escape. the holes are caused by electric current passing through the stainless steel tube, which has a very high resistance and acted like an electrical fuse, basically melting. two houses next door to each other, both with gas meters on fire, unusual circumstances, to be sure. but from there, it gets even more unusual from a fire investigator s point of view. the fires developed in such a way that the two small fires have developed, and within a few