COMMUNITY FORUM

northerndesign

01:38PM | 09/21/07
Member Since: 09/20/07
2 lifetime posts
Bvelectrical
I own a old aparment building. The hallway and exterior lights are on a timer that no longer works. We cannot identify which wire is which on the old cloth wiring. Strangely there are three wires that are all identical. How do I tell what is what?

Billhart

02:43PM | 09/21/07
Member Since: 04/25/05
1918 lifetime posts
"Strangely there are three wires that are all identical."

Where are these at? The timer, The lights?

What was there before and what connected to what?

What kind of test equipment do you have?

northerndesign

04:00PM | 09/21/07
Member Since: 09/20/07
2 lifetime posts
I would have tagged the wires as I disconnected them from the timer. However my boyfriend did not. They are coming out of the junction box. He said he tried using a standard wire tester but he still could not figure it out.

Billhart

08:46PM | 09/21/07
Member Since: 04/25/05
1918 lifetime posts
I am SPECULATING that what you have is something like this.

http://www.selfhelpandmore.com/switchoutlet/fixonhotswitch/

Except for some Unswitched power onward.

You have a neutral and always hot to operate the timer.

And the 3 wire is the switched hot.

" a standard wire tester"

There is no such thing. They range from digital voltmeters with $1.79 neon testers with several in between.

And each on has there only advantages and disavantages.

ultramegabob

05:24AM | 10/28/07
Member Since: 08/27/07
23 lifetime posts
from what i have to go on, first remove lightbulbs from whatever fixture you are turning on to prevent backfed power on the neutral.

use a volt meter and check for voltage between two of the three wires, these are your power coming in, and the third wire should be your switchleg out to your fixture.

now find a known neutral by either streatching out an extension cord from a recepticle that you know is properly wired or run a piece of wire all the way to the neutral buss in the electrical panel, now you can identify which of the two are power, and you can check for continuity on the neutral. if this doesnt make sense hire an electrician...
Click_to_reply_button
Inspiration_banner

INSPIRATION GALLERY



Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.

Reply_choose_button

captcha
type the code from the image

Anonymous

Post_new_button or Login_button
Register

Oversize windows let the outside in, even in a cozy cottage bathroom like this one. A roller screen and wraparound shower ... Built on a rocky island in the Drina River, near the town of Bajina Basta, Serbia, this wooden house was cobbled together ... Large steel-framed windows flood the interior of this remodeled Michigan barn with daylight. The owners hired Northworks A... Edging formed with upside-down wine bottles is a refreshing change. Cleverly and artistically involving recycled materials... A Washington State couple called on BC&J Architects to transform their 400-square-foot boathouse into a hub for family bea... Similar to the elevated utensil concept, hanging your pots and pans from a ceiling-mounted rack keeps them nearby and easy... Few projects are more fun than upcycling a vintage piece in a surprising way. Outfitted with a sink and a delicately tiled... The thyme growing between these stepping stones adds a heady fragrance to strolls along this lush, low-maintenance garden ... Decoupage is an easy way to add any paper design to your switch plate, whether it is wallpaper, scrapbook paper, book page... Twine lanterns add pops of crafty—but sophisticated—flair to any outdoor setting. Wrap glue-soaked twine around a balloon ... When securely fastened to a tree or the ceiling of a porch, a pallet and some cushioning make the ideal place to lounge. V... Reluctant to throw away any of those unidentified keys in your junk drawer? Hang them from a few chains attached to a simp... A stripped-down model, sans screened porch, starts out at $79,000. Add the porch, a heated floor for the bath, and all the... Salvaged boards in varying widths and colors make up the dramatic accent wall in this attic space. The high-gloss white of... This garden shed has been decked out to the nines. Designer Orla Kiely created the intimate home for a flower trade show, ...
Follow_banner_a
Newsletter_icon Google_plus Facebook Twitter Pinterest Youtube Rss_icon
 
webapp1