flashlight
Senior Member
- Location
- NY, NY
- Occupation
- Electrician, semi-retired
This Old House unsafe practice
- Thread starter lakee911
- Start date
- Status
RJohnsonMasterElectrician
Senior Member
- Location
- Right now ??, previously VT
Don't you love Electrical theory with no path to ground you can touch a live wire or connector and not get electrocuted.
Theories are great but I am not going to test them.
That was just stupid
Theories are great but I am not going to test them.
That was just stupid
Did that once in front of an ex girlfriend. Was trying to prove I can safely work on live lines as long as I'm not grounded. Naturally, while doing that, I had my other hand rested firmly on the grounded, metal, counter-top. :roll:
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
That's right in line with "Hey, guys, watch this!"
mivey
Senior Member
But it is more understandable when trying to impress the fairer sex. The first response being "what an idiot", the other being "yeah, been there".That's right in line with "Hey, guys, watch this!"
K8MHZ
Senior Member
- Occupation
- Electrician
RJohnsonMasterElectrician
Senior Member
- Location
- Right now ??, previously VT
yeeeeeeeears ago when i was a first yr apprentice prepping some stress cones for 13.6 kv he told us that electricity jumps 1/4" for every 1 thousand volts under normal conditions. I just always beleived it not knowing any different. Is there such a "rule of thumb" about that or was he just talking out his ***.
wptski
Senior Member
- Location
- Warren, MI
I can't find the link but I actually found a online calculator for the amount of voltage vs gap size.
- Location
- Simi Valley, CA
I don't know the answer, but I remember watching a show about guys that have to rescue people from power poles, and them reminding people that when you get up to the higher voltages that you don't have to touch the wires to get electrocuted.
Dielectric breakdown of air is 3kV/mm or 76.2kV/in
Higher air pressure increases the dielectric strength (V/mm).
Remember that it only has to have this voltage to jump the air gap. Running the surface of the broom you're holding requires far less voltage.
wptski
Senior Member
- Location
- Warren, MI
Since this is a Ths Old House lack of Safety thread.
Watched one of their non-project segments where Tom Silva helped a HO reroute a problem bathroom vent through the roof. When both or one was on the roof, they had fall protection equipment on. How/where the equipment was attached wasn't shown though!
How many of you use this equipment?
Watched one of their non-project segments where Tom Silva helped a HO reroute a problem bathroom vent through the roof. When both or one was on the roof, they had fall protection equipment on. How/where the equipment was attached wasn't shown though!
How many of you use this equipment?
- Location
- Simi Valley, CA
Here it's required by CalOSHA, may even be an OSHA requirement.
http://www.millerfallprotection.com/fall-protection-products/roofing-products/temporary-roof-anchors
http://www.millerfallprotection.com/fall-protection-products/roofing-products/permanent-roof-anchors
Most of the time you will find some homemade anchoring system that the contractor made and they think that meets the standard.....wrong.
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
Didn't you know? On TV, it's only required that you appear to be tethered.
wptski
Senior Member
- Location
- Warren, MI
That's right! The strap just ran to the edge of the roof, connection unseen.
- Location
- Simi Valley, CA
Then when you fall they bring in a stuntman.:roll:
- Status