安裝中文字典英文字典辭典工具!
安裝中文字典英文字典辭典工具!
|
- Building Connected? Your experiences, please. . .
well, i'm running the free version, and it started spewing requests to bid, so i started bidding them there is no point in getting the pro version i took the dog and pony show, and the salesman said, just bid what shows up, and see how much of it you get, and use the free version about $4k a year to get the pro version we shall see if i get anything off of it i bid 14 today, before going
- Fire Alarm Devices in Walk-In Cooler Freezer | Information by . . .
Does any body have any code references or requirement for fire alarm Speaker Strobes in walk in Coolers Freezers?
- Does anyone make a flush mount external cluster meter main any more . . .
Does anyone still make a flush mount meter main product? We have a panel that's shot, that's flush mount, and there's really no room for a modern panel Working space rules won't permit a surface mount solution, and various constraints hamper moving the service Old panel 200 amps, rule of 6
- Disconnect for Air Compressor | Information by Electrical Professionals . . .
We have specified a 300HP, 480V 3-Phase air compressor with a manufacturer mounted controller with integral disconnect switch I was told the controller showed up on site with E-Stop button on the controller but no disconnect My question, can the E-Stop considered to be a disconnecting means
- Old murray panel deadfronts | Information by Electrical Professionals . . .
I have a really stupid question I do commercial and industrial work with modern gear so I don't see this much but we've got a couple older buildings now I have a 45 year old 1970 Murray meter main box I need to look inside the main box but the deadfront seems very loose and flimsy to me
- Leviton GFCI nuisance tripping and circuit analysis
I know many electricians and vendors, engineers encounter nuisance tripping with the Leviton GFCI After all these years Is there finally a theory why? If not Let's figure it out and analyze the circuit First This is a Waterpik mouth spray shaded-pole motor See youtube video how it works
- NEC 2017_Annex D_Example D8_Motors | Information by Electrical . . .
Hi, I may be missing something very basic but can someone explain something to me about NEC 2017_Annex D_Example D8_Motors_Page 800? The example motor specs are given in the beginning (a) and (b) sections (a) is one 25-hp motor with a nameplate rating of 32 amps (b) is two 30-hp motors with
- 480v high leg motor issue - Mike Holts Forum
i am troubleshooting a three phase 480 motor with voltage issues that is fed by a high leg system I dont have to much experience with this set up Would the configuration of the connections to the motor matter? It is fed by a 3 wire 480v delta high leg system i did not think it would matter
|
|
|