discharging a capacitator

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la2151

Member
Location
california
HI .. has been a few yrs back & don"t remember exactly. What is the safest way to discharge a charged cap for a hid light fixture? Thanks guys. Always great to be able to come here.
 
mivey

mivey

Senior Member
la2151 said:
HI .. has been a few yrs back & don"t remember exactly. What is the safest way to discharge a charged cap for a hid light fixture? Thanks guys. Always great to be able to come here.
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Use a test light or a high-wattage ceramic resistor.

add: I"ve been guilty of it, but don't use your screwdriver.
 
C

cornbread

Senior Member
Lights and resitors are nice, but alway check the cap with a meter to make sure it is completely discharged . I lit myself up pretty good thinking I had fully discharged a cap on 4160 Volt soft start.
 
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Larryc39

Member
It's also best to leave the shorting plug on until you really need to take it off and use it. A little phantom voltage can recharge in the cap as well.
 
SG-1

SG-1

Senior Member
Location
Ware Shoals, South Carolina
I use a push-to-test light with a resistor added on. After watching the light go from bright to dim to out I use the push function to short out the discharge resistor removing any charge that is left.
 
R

ramsy

Roger Ruhle dba NoFixNoPay
Location
LA basin, CA
Occupation
Service Electrician 2020 NEC
brother said:
you have a good link to one??
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shorting-probe.jpg

http://mitchellinstrument.com/produ...-w6-ft-2-awg-cable-flat-jaw-ground-clamp.html
 
N

neutral

Senior Member
Location
Missouri
millerdtm said:
Shorting Probe..
Add: I have also used a screwdriver in the past. Ruined a couple so I would'nt recommed it.
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300 dollars for a shorting probe? :roll: no way, you can use a short piece of wire for free. or buy a couple dozen screwdrivers from the HF store to get the most bang for your buck.:)
 
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