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Crouse-Hinds L-150 Open
Hey Dave,here's a couple pics of the 400W Mercury Vapour Crouse-Hinds L-150 open that you requested.I replaced the rusty mounting studs and nuts with stainless threaded rod and nuts and painted the brackets which looks much better.
Keywords: American_Streetlights

Crouse-Hinds L-150 Open

Hey Dave,here's a couple pics of the 400W Mercury Vapour Crouse-Hinds L-150 open that you requested.I replaced the rusty mounting studs and nuts with stainless threaded rod and nuts and painted the brackets which looks much better.

DSC08340_Verd-A-Ray_150W_Mint_Green.JPG DSC03413 S Curve Minus Brace.JPG DSC04215_Crouse-Hinds_L-150.JPG DSC06688_Flexillume_Fluorescent_Wrap.JPG DSC07459_Hubbell__Columbia_Lighting_SA_Series.JPG
File information
Filename:DSC04215_Crouse-Hinds_L-150.JPG
Album name:lite_lover / Lighting Components
Keywords:American_Streetlights
Company and Date Manufactured:Crouse-Hinds
Model Number:L-150
Wattage:400W
Lamp Type:Mercury Vapour
Filesize:152 KiB
Date added:Oct 26, 2010
Dimensions:1024 x 768 pixels
Displayed:129 times
Color Space:sRGB
Contrast:0
DateTime Original:2010:10:25 18:57:59
Exposure Bias:0 EV
Exposure Mode:0
Exposure Program:Program
Exposure Time:1/10 sec
FNumber:f/2.8
Flash:No Flash
Focal length:7.9 mm
ISO:100
Light Source:Unknown: 0
Make:Sony
Max Aperture:f/2.8
Model:DSC-W1
URL:http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=3763
Favorites:Add to Favorites

Comment 1 to 15 of 15
Page: 1

LilCinnamon   [Nov 20, 2011 at 11:20 PM]
I never knew they made 400 watt HX ballasts.

I guess that works in a small fixture like this one. xD

If I wanted to I could make my L-150 into an L-400 or OV-400 or whatever. xD But I am keeping mine a good old 175 watts.
TiCoune66   [Nov 21, 2011 at 12:58 AM]
Aside from CWI, mercury vapour ballasts were HX all the way to 1000W until the mid-60s. CWA ballasts have been invented around that time if I'm right.
streetlight98   [Nov 21, 2011 at 01:03 AM]
I thought CWI was only for HPS... i guess i learned something new today...
joe_347V   [Nov 21, 2011 at 01:09 AM]
CWI ballasts are actually required in Canada on phase to phase voltages since they isolate the lamp shell.
streetlight98   [Nov 21, 2011 at 01:12 AM]
Hmm. How do they isolate the lamp shell? BTW, what is a grounded socket shell and what's the benifit of it? Neutral
joe_347V   [Nov 21, 2011 at 01:21 AM]
Neutral eh Mike? Laughing

A CWI ballast basically has a isolation transformer combined with ballast.

A grounded lamp shell prevents someone from getting shocked if they change lamps live on a phase to phase system since the shell is directly connected to one of the hots if a non isolated ballast was used. A CWI ballast prevents this problem by isolating the secondary from the primary.
streetlight98   [Nov 21, 2011 at 01:24 AM]
All sockets have a nuetral though.... So it kind of cuts the power to the socket when the lamp is removed?
joe_347V   [Nov 21, 2011 at 01:27 AM]
No on a CWA ballast operated on a phase to phase voltage the "socket neutral" is DIRECTLY connected to one of the hot wires meaning that it COULD SHOCK YOU if you touch it. A CWI ballast prevents this by ISOLATING the lamp end from the supply using a isolating transformer. It does not disconnect the lamp power.
streetlight98   [Nov 21, 2011 at 01:30 AM]
Is phase to phase voltage a multi-tap ballast? And does the mean just the socket of the outer lamp envelope could shock you?
TiCoune66   [Nov 21, 2011 at 01:43 AM]
I think you'll need a diagram Michael LOL. I'll make it Wink
joe_347V   [Nov 21, 2011 at 01:43 AM]
Phase to phase voltage means any of those those voltages that don't have a neutral (208, 240, 480, 600V) it's not related to the number of line taps on a ballast.

And of course the glass can't shock you, just the metal lamp shell.

EDIT Vince's diagram should help clear things out.
TiCoune66   [Nov 21, 2011 at 01:56 AM]
Here it is:



I assume you meant to say that the socket shell needs to be grounded, which makes sense anyway.
Silverliner14B   [Nov 21, 2011 at 03:07 AM]
Yep, the circuit goes from line to line to complete the circuit instead of line to neutral. BTW, another advantage of CWI ballasts is that the isolation between coils protects the lamp from line voltage should the ballast short out. Autotransformer type ballasts (HX, CWA, etc) can cause line voltage to reach the lamp should the ballast short, no wonder lamps sometimes blow to pieces when the ballasts quit.
streetlight98   [Nov 21, 2011 at 08:47 PM]
Are CWI ballasts are quite expensive given the fact that they have so many benefits? And where do they fall in the amount of ballast losses? (watt-wise)
TiCoune66   [Nov 21, 2011 at 08:55 PM]
Not so much because of their slightly higher manufacturing cost, it's rather because their sale volume is significantly lower.

Regulated lag ballasts offer all those advantages, plus a better lamp regulation! They do however have more losses, while CWI ballasts are somewhat between regulated lag and HX

Comment 1 to 15 of 15
Page: 1