Separated from a central building piped refrigeration system, this type of equipment can cool itself on its own.
What is a self-contained case?
When you size wires to a cumulative of less than 5% value.
What is voltage drop?
What is a junction box?
Putting something in the earth. This article lists requires to allow for contstant voltages and helps minimine electrostatic shock.
What is article 250 Grounding?
A piece of equipment that multiple compressors that are piped & wired together in parallel to service several refrigerated case systems.
What is a refrigeration rack?
I am something that is shared in multi-wired raceways particuarly in Target Beauty areas. Found commonly on 2 or 3 pole berakers and handle ties.
What is the grounded conductor (neutral)?
The maximum AIC rating of a 2P GFCI breaker (Square D or equivalent)
What is 10,000A?
What is 6-pole lighting contactor?
More than meets the eye, this article covers requires of separately derived systems including limitations where one rated 50,000VA can go.
What is article 450 Transformers and Transformer Vaults?
DAILY DOUBLE!!!
This device is typically has one power feed that can control lights, fans, door heat on a refrigeration case.
case controller
The highest electrical power demand that has occurred over a specified time period (typically 12 month period on projects).
What is peak demand load?
The amount of current leakage it takes for GFCI device to trip.
What is 5mA
What is CT cabinet & meter?
Where you find the best 'service' of code. This article also explains how to get electricity to the building.
What is article 230 Services?
This system monitors refrigerant or other harmful gases and fluids in walk-in freezers/coolers by using equipment such as alarms and transducer sensors.
What is a leak detection system?
The maximum load (in VA) a 480/1phase 40A breaker (rated at 80%) can withstand.
What is 15,360VA?
The amount of current leakage it takes for GFEP (ground fault equipment protector) device to trip.
What is 30mA?
What is LED 0-10V Dimmable Driver?
The means and 'methods' of getting wires from point A to B. This article is often amended in the Chicago area.
What is article 300 Wiring Methods?
I don't like lights that are 1' or closer than me. I blow cold air and sometimes need extra heat in really cold temperatures so my pipes don't freeze.
What is evaporator coil?
FINAL JEOPARDY!!
The wire, ground, and conduit size would I be for when I have VD issues and need to be sized 3 sizes up from a standard 100A branch circuit for equipment that has terminals rated for 60-degrees and at 208V/3-phase.
(assume Copper wires and EMT conduit)
(3) #3/0, (1) #4G, 2" C
What is Starline Busway?
DAILY DOUBLE!!!!
Where you find requirements such for vending machines, dishwasher, sump pumps, electric water coolers and other "utilization equipment, generally other than industrial, that is normally built in standardized sizes or types and is installed or connected as a unit to perform one or more functions."
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