The Electrical Contractor Network

ECN Electrical Forum
Discussion Forums for Electricians, Inspectors and Related Professionals

Books, Tools and Test Equipment for Electrical and Construction Trades

Register Now!

Register Now!

We want your input!

Featured:
   

2017 NEC and Related
2017 NEC
Now Available!

   
Recent Posts
Forum Software Upgrade coming soon...
by HotLine1
01/17/17 03:23 PM
Would ELV branch circuits be a good idea?
by gfretwell
01/17/17 01:26 PM
Why cables look like they do
by Texas_Ranger
01/17/17 12:33 PM
Re: Fabricating Guards out of Lexan?
by ghost307
01/17/17 11:21 AM
100% breakers?
by Texas_Ranger
01/16/17 06:13 AM
New in the Gallery:
Desk-mounted "power-board"
Shout Box

Top Posters (30 Days)
HotLine1 20
Webmaster 15
Trumpy 12
ghost307 12
gfretwell 11
Who's Online
2 registered (HotLine1, frank), 0 Guests and 69 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
Rate This Topic
#71895 - 11/09/06 06:16 PM electrical interlock elevator switch
Cinner Offline
Member

Registered: 12/01/04
Posts: 77
Loc: Kelowna, B.C., Canada
Can someone tell me what application an electrical interlock would have on a 200 amp elevator disconnect switch?

Top
Work Gear for Electricians and the Trades

Work Gear for Electricians and the Trades
Work Gear for Electricians and the Trades
Arc Flash Clothing, Gloves, KneePads, Tool Belts, Pouches, Tool Carriers, etc. etc....

#71896 - 11/09/06 07:20 PM Re: electrical interlock elevator switch
NJwirenut Offline
Member

Registered: 09/15/01
Posts: 816
Loc: Bergen County, NJ
What do you mean by an "electrical interlock"?

A solenoid that prevents the switch from being thrown? That might prevent the power from being turned off when the elevator is between floors.

Top
#71897 - 11/09/06 07:30 PM Re: electrical interlock elevator switch
scameron81 Offline
Member

Registered: 02/24/04
Posts: 80
Loc: Healdsburg, ca, USA
The interlock is required for hydraulic elevators with automatic recall. When the power goes out the elevator automatically returns to the first floor and lets the passengers out. When working on the system and you turn off the disconnect for the sake of safety you don't want the elevetor moving down to the first floor. When the NC mechanical interlock opens it tells the elevator not to recall to the first floor even though the power is out. It has been a while since I have done an elevator but I am pretty sure thats the reason behind it.

Top


ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals