SET SCREW EMT COUPLING-ZINC,EMT couplings

Ref Price:: $0.05 - 2.50 / pc

Loading Port:: Ningbo

Payment Terms:: TT or LC

Min Order Qty:: 1000 pc

Supply Capability:: 300000 pc/month

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Description:
EMT couplings are used in dry location to connect the ends of two unthreaded EMT conduits together. EMT aluminum set-screw couplings provide concrete tight connections when taped. Additionally, These set-screw couplings eliminate the need to thread bald conduits to fit old threaded couplings. EMT conduit couplings are pure aluminum material for excellent corrosion protection in damp location.

EMT Coupling
American Standard
UL Standard 514B
Size: Zinc 1/2" to 4"
Aluminum 1/2" to 2"
Set-screw type
Material: Zinc/Aluminum Die Cast

Applications:

These set-screw couplings are used in dry locations to connect the ends of two EMT thinwall conduits together. topele’ die-cast aluminum, set-screw couplings provide concrete-tight connections when taped and properly secured with the included set-screw. Topele’ set-screw electrical couplings are rated for electrical applications above 600 volts.

Q: 1000 kW 600 m cable to use much: Such a large load so far away, can only be transported with 10KY, near the installation of the transformer Caixing, if the 380V transmission, cross-sectional area, high cost, loss of large, not worthwhile. 10KV high-pressure delivery, current 55A, with 25mm? copper cable 35mm? aluminum cable delivery on it. If the 380V transmission, according to the line voltage loss simple calculation formula △ U% = PL / CS take △ U% = 5 copper cable S = PL / CS △ U% = 1000X600 / 77X5 = / 385 = 1558mm? aluminum cable S = PL / CS = U06 / 46X5 = / 230 = 2307mm? Line voltage loss △ U Simple calculation formula △ U% = PL / CS △ U% - Percentage of voltage loss P - Active power of conveying (Kw) Distance of L- M) C-constant, aluminum single-phase 8.. aluminum three-phase four-wire 46; copper single-phase 12.. copper three-phase four-wire 77S-conductor cross section (mm?) (quoted from "electrical entrance permit test low pressure Class theory "" electrical engineering basis ")

Q: Is the cable head made of every building?: Building in accordance with the floor or unit configuration distribution box, there are office buildings using a total box. Where there is a cable out of the situation, must be wrapped to make the cable head, according to the choice of distribution box circuit breaker wiring crimp or not crimp the cable terminal. In other words, the cable head must be made, but not necessarily crimp the cable terminal.

Q: What is the meaning of PG + digital markings for electrical wiring?: Will the general power cable control cable can do the largest square...

Q: 3 by 16 cable is a few flat? How? That 5 by 16?: Is the power directly out of the CPU power supply line or on this basis and added the extension line

Q: How much of the cable with the switch?: The switch is selected according to the current. General switch = (2-2.5) Current three-phase current = P / 1.732 / 0.38 / 0.8 Single-phase current = P / 0.22 / 0.8

Q: Can the main cable be aluminum cable? And explain why, thank you!: Power board problem cost 10 less than the general maintenance received you 150

Q: 5 air conditioning can be used 4 square cable: Such as the extension line added to the adapter primary (city side) certainly easy to use. Extended by two meters, the router does not start, may be extended wire diameter is too thin, bold wire try. If not, choose 6V2A adapter try, the voltage is too high will burn the router. Increase the current is no problem, just like the computer's power, 300-watt power can be replaced, and small is not OK.

Q: How do I ask for cable prices? How many tons is one or more?: Cable bridge grounding should belong to the protective grounding, grounding resistance at a cross point is not greater than 50 milliohms, no jumper no more than 5 milliohms

Q: 6 square cable up to how many air conditioning (1.5P): 1 square millimeters can flow 4A current, 1KW380V, then the current is about P = UI about 2.6A7KW, 380V, then the current is about 18A, each with the line to share 18/3 = 6A2.5 square mm of copper on it. Of the area need to take . probably 6 level. V is probably 7KW220VI = p / u = 7000/220 = 31A. Then need 10 square millimeters of copper.

Q: 25 square copper cable how much money one meter?: 3000w electrical work at 220V voltage is about 13.6A (current = power divided by voltage). Copper core line of the working current is generally a square 4-6A. That is to say you use 3-4 square power cord more secure.

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