ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
diazed fuses
by annemarie1. 02/24/18 08:05 PM
Solid state relay or not
by gfretwell. 02/24/18 04:52 AM
Whirlpool Recalls KitchenAid Electric Kettles
by Admin. 02/22/18 11:35 AM
110.26
by gfretwell. 02/18/18 12:14 AM
New in the Gallery:
Housebilding DIY wiring
SE cable question
Who's Online Now
0 registered members (), 3 guests, and 7 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
fuses #202034
07/11/11 07:27 PM
07/11/11 07:27 PM
S
schenimann  Offline OP
Member
Joined: Feb 2008
Posts: 193
Western North Carolina
I got a service call today for an elevator that was not working. I checked it out and it was a blown fuse. The fuses that were in were one time fuses. All the supply house has was time delays so I replaced it with that to get it going.

What is the differnced between the two and do I need to change it to a one time? The elevator is 3ph 240v and originally dates maybe to 1940 or thereabouts.

Work Gear for Electricians and the Trades
Re: fuses [Re: schenimann] #202035
07/11/11 07:49 PM
07/11/11 07:49 PM
HotLine1  Offline

Member
Joined: Apr 2002
Posts: 6,926
Brick, NJ USA
Simply put, the differences is the time curve that the fuse will allow before opening. The td's are common for motor loads, as they allow for start inrush.

As long as you sized them correctly, IMHO you are OK


John

Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
watersparkfalls
watersparkfalls
Washington...Not DC
Posts: 222
Joined: March 2005
Show All Member Profiles 
Top Posters(30 Days)
Admin 9
Popular Topics(Views)
244,084 Are you busy
181,127 Re: Forum
171,323 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.015s Queries: 15 (0.004s) Memory: 0.9414 MB (Peak: 1.0596 MB) Zlib enabled. Server Time: 2018-02-25 15:48:33 UTC