Ống thép luồn dây điện mềm có bọc nhựa -UL Listed Conduit -Water-proof Flexible
Metallic Conduit (W.PFMC)/PVC coated flexible galvanized conduit (size 1/2” đến
4”); Ống thép luồn dây điện mềm không bọc nhựa- ống luồn dây điện ruột gà Electrical Flexible Metallic Conduit (FMC)-
Electrical Flexible galvanized steel conduit
(Interlock -Hot Dip Galvanized); Ống thép luồn dây điện mềm có bọc nhựa
dày- Liquid-tight Flexible Metal Conduit (LFMC); Phụ kiện nối ống thép luồn
dây điện mềm –Water-proof Flexible Conduit Connectors; straight squeeze connectors; Squeeze Type BX-Flex Connector ; Liquid-tight Conduit Connectors; ống ruột gà lõi thép mạ kẽm luồn dây điện, ống luồn
dây điện mềm, ống ruột gà tráng kẽm không bọc nhựa, ống đàn hồi thép luồn dây
điện- Flexible metallic conduit- water proof flexible galvanized steel conduit
– liquid tight flexible metal conduit- KAIPHONE – BLISS- PVC coated Flexible
galvanized conduit
www.vattuthietbidien.net
Chuyên sản xuất cung
cấp: Ống thép luồn dây điện mềm có bọc nhựa KAIPHONE/ CATVANLOI -Water-proof
Flexible Metallic Conduit (W.PFMC); Ống thép luồn dây điện mềm không bọc nhựa-
Flexible Metallic Conduit (FMC);
Phòng KD & Dự án: Ms Hiền 0902377537 / 08-22464699
Ms Hiền 0902377537/08-22464699 GI conduit Galvanized Steel Conduit,
Electrical Metallic
Tubing, Intermediate metal conduit, Rigid steel conduit,
CVL/SMARTUBE/Panasonic
white steel conduit: Electrical Metallic Tubing- Intermediate Metal Conduit-
Rigid steel conduit, Smartube white steel conduit BS4568- JISC8305 GI conduit
& fittings, Flexible
metallic conduit- water proof flexible galvanized steel conduit – liquid tight
flexible metal conduit, Flexible metallic conduit- water proof flexible
galvanized steel conduit
Title: ống luồn dây điện thép, ong
thep luon day dien, ống STK luồn dây điện, ống GI luồn
dây điện, White steel conduit- Flexible conduit
Description
Hiền
0917762008- SALES@CATVANLOI.COM-Ống luồn dây điện CATVANLOI, ống luồn dây điện chuẩn
Mỹ EMT steel conduit (Electrical
Metallic Tubing), ống luồn dây điện IMC conduit/ RSC conduit (Intermediate Metal Conduit- Rigid steel conduit),
ống luồn dây điện chuẩn Nhật JISC8305 Loại E & C & G (White
steel conduit), ống thép tráng kẽm luồn dây điện chuẩn Anh
Quốc BS4568-BS31(Galvanized steel conduit)
Ống ruột gà lõi thép có bọc nhựa phi 20/D20-Water-proof Flexible Metallic Conduit (W.PFMC); Ống ruột gà lõi thép không bọc nhựa- Flexible Metallic Conduit (FMC); Ống ruột gà lõi thép luồn dây điện có bọc nhựa dày- Liquidtight Flexible Metal
Conduit (LFMC); Phụ kiện nối ống ruột gà lõi thép luồn dây điện-Flexible Conduit Connectors, Squeeze traight flexible
connectors, Combination Flexible and IMC / EMT connectors.
Ống
ruột gà
lõi thép luồn dây điện CVL-Ong ruot ga boc nhua phi
20/D20- Waterproof/Liquid tight Flexible Metallic Conduit
Steel CityR
Conduit Fittings provide
long-lasting service in commercial,industrial and residential construction. Our
fittings are manufactured within strict tolerances to maintain consistent performance.
Installers can be assured that every fitting with the Steel CityR name will
work
every time. So when you select Steel CityR Conduit
Fittings, that means fewer headaches and call-backs. Steel CityR products
symbolize the highest quality standards in manufacturing and innovative design,
with one of the most complete offerings available. Contact a T&B
distributor nearest you to select the right Steel CityR product
for your requirements.
The installation of Rigid Steel Conduit (RSC) is covered by Article 344 of the National Electrical Code® (NEC®). This article is entitled "Rigid Metal Conduit (RMC) and includes all requirements for all rigid metal conduits, including steel, stainless steel, aluminum, and red brass. Information on this STI website covers only rigid steel conduit. You will often see the following acronyms used: RSC (Rigid Steel Conduit), ERSC (Electrical Rigid Steel Conduit), or GRC (Galvanized Rigid Conduit) in place of RMC (Rigid Metal Conduit) in order to differentiate the type of metal used in the product.
Rigid steel conduit (RSC) is a listed threaded metal raceway of circular cross section with a coupling which can be either a standard straight tapped conduit coupling or the integral type. Threads on the uncoupled end are covered by industry color-coded thread protectors which protect the threads, keep them clean and sharp, and aid in trade size recognition. Rigid metal conduit is available in trade sizes 1/2 through 6. Thread protectors for trade sizes 1, 2, 3, 4, 5, and 6 are color-coded blue, trade sizes 1/2, 1 1/2, 2 1/2, 3 1/2 are black, and trade sizes 3/4 and 1-1/4 are red. The nominal finished length of RMC with couplings is 10 feet. Twenty foot lengths are available in some trade sizes.
There are different processes used to provide corrosion protection to rigid steel conduit. Rigid steel conduit can have a primary coating of zinc, a combination of zinc and organic coatings, or a nonmetallic coating (such as PVC). Supplementary coatings can be applied to all three where additional corrosion protection is needed.
Rigid steel conduit is the heaviest-weight and thickest wall conduit. Where galvanized by the hot-dip process, it has a coating of zinc on both the inside and outside. Electro-galvanized rigid conduit has a coating of zinc on the exterior only, with approved corrosion resistant organic coatings on the interior. Rigid conduit with "alternate corrosion protection coatings" generally has organic coatings on both the exterior and the interior surfaces. Galvanized rigid metal conduit (GRC) is non-combustible and can be used indoors, outdoors, underground, concealed or exposed. Rigid steel conduit with coatings that are not zinc-based may have temperature limitations which will be noted on the manufacturer's product label and may not be listed for use in environmental air spaces; consult manufacturers’ listings and markings.
Intermediate Metal Conduit — (IMC STEEL CONDUIT)
The product was developed in the 1970s. Intermediate Metal Conduit
(IMC) is a lighter-weight, thinner wall alternative to rigid steel conduit.
Covered under Article 342 in the NEC®, IMC is a listed threaded steel raceway
of circular cross section with a coupling which can be either a standard
straight-tapped conduit coupling or the integral type. Threads on the uncoupled
end are covered by industry color-coded thread protectors which protect the
threads, keep them clean and sharp, and aid in trade size recognition. IMC is
available in trade sizes 1/2 through 4. Thread protectors for trade sizes 1, 2,
3, 4, are color-coded orange; trade sizes 1/2, 1 1/2, 2 1/2, 3 1/2 are yellow;
and trade sizes 3/4 and 1 1/4 are green. The nominal finished length of IMC with
coupling is 10 feet.
IMC has a reduced wall thickness, when compared to RSC, and
weighs about one-third less than RSC. The outside has a galvanized coating for
corrosion protection and the inside has an approved organic corrosion-resistant
coating. IMC is interchangeable with galvanized rigid steel conduit. Both have
threads with a 3/4-inch per foot taper, use the same couplings and fittings;
have the same support requirements; and are permitted to be used in the same
locations.
Electrical Metallic Tubing — (EMT STEEL CONDUIT)Electrical Metallic Tubing (EMT), also commonly called thin-wall, is a listed steel raceway of circular cross section which is unthreaded, and nominally 10 feet long. Twenty foot lengths are also available. Covered by Article 358 of the NEC®, EMT is available in trade sizes 1/2 through 4. The outside is galvanized for corrosion protection and the inside has an approved corrosion resistant organic coating. EMT is installed by use of set-screw or compression-type couplings and connectors. It is permitted to have an integral coupling which is comprised of an expanded, "belled" shape of tube on one end with set screws. EMT with integral couplings is available in trade sizes 2 through 4.
Steel Conduit System
Types and Sizes of Steel Conduit
Steel conduits are
manufactured to specifications defined by the British Standards Institute (BS).
Class 4 conduit has a hot dip galvanized finish. It is of heavy gauge with a welded seam.
This conduit is suitable for use in external or damp installations.This is the
conduit most widely used in this country.
Also manufactured
is a solid drawn seamless conduit which is more expensive and only used for
special gas tight, explosion proof or flame proof installations.
Conduit is normally
supplied in 3 or 3.75 metre lengths and typical conduit external diameters are 16,
20, 25 and 32mm.
Some Advantages of Steel Conduit
·
Affords
cables good mechanical protection
·
Permits
easy rewiring
·
Minimises
fire risks.
·
Some Disadvantages of Steel
Conduit
·
Under
certain conditions moisture is liable to form on the inside wall of the
conduit.
·
Expensive
compared with some other wiring systems.
3.1 Steel
Conduit and Tubing
The wall
thickness and strength of steel make RMC, IMC, and EMT the wiring methods
recognized as
providing the most mechanical protection to the enclosed wire conductors.
Additionally,
a properly installed steel RMC, IMC or EMT system is recognized by the NEC as
providing its own equipment grounding path.
3.1.1
Steel rigid metal conduit - RMC (ferrous metal)
Steel Rigid
Metal Conduit (RMC) is a listed threaded metal raceway of circular cross
section with a coupling which can be either a straight tapped conduit coupling
or the integral type Threads are protected on the uncoupled end by color-coded
thread protectors which keep them clean and sharp and aid in trade size
recognition.
Steel RMC is
available in trade sizes 1/2 through 6.Thread protectors for trade sizes 1, 2,
3, 4, 5, and 6 are color-coded blue; trade sizes 1/2, 1-1/2, 2-1/2, 3-1/2 are
black, and trade sizes 3/4 and 1-1/4 are red. The nominal finished length of
RMC with coupling is 10 feet (3.05m). Longer or shorter lengths
with or without coupling and threaded or unthreaded are permitted. Steel RMC
can have a primary coating of zinc, a combination of zinc and organic coatings,
or a nonmetallic coating with or without zinc (such as PVC). Other
supplementary coatings can be applied to all three where additional corrosion
protection is needed.
Special
installation practices and tools are generally required for working with
PVC-coated products. These practices are covered in Section 6. Steel RMC is the
heaviest-weight and thickest-wall steel conduit. Where galvanized by the
hot-dip process, it has a coating of zinc on both the inside and outside. Electro-galvanized
rigid has a coating
of zinc on the
exterior only, with corrosion-resistant organic coatings on the interior. Steel
RMC with alternate corrosion protection generally has organic coatings on both
the exterior and the interior surfaces. Galvanized RMC has no temperature
limitations and can be used indoors, outdoors, underground, concealed or
exposed. RMC with coatings that are not zinc-based sometimes has temperature
limitations or is not listed for use in
environmental
air spaces; consult manufacturers’ listings and markings.
3.1.2
Intermediate metal conduit – IMC (ferrous metal)
Intermediate
Metal Conduit (IMC) is a listed threaded steel raceway of circular cross
section with a coupling which can be either a straighttapped conduit coupling or
the
integral type
Threads are protected on the uncoupled end by color-coded thread protectors
which keep them clean and sharp and aid in trade size recognition. IMC is
available in trade sizes 1/2 through 4. Thread protectors for trade sizes 1, 2,
3, 4, are color-coded orange; trade sizes 1/2, 1-1/2, 2-1/2.3-1/2 are yellow;
and trade sizes 3/4 and 1-1/4 are green. (See Table 1 for Metric Trade Size
Designators.) The nominal finished length of IMC with
coupling is 10 feet (3.05m). IMC has a reduced wall thickness and weighs
about one-third less than RMC. The outside has a zinc based coating and the
inside has an organic corrosion-resistant coating. IMC is interchangeable with
steel RMC. Both have threads with a 3/4-inch per foot (1 in 16) taper; use the
same couplings and fittings; have the same support requirements; and are
permitted in the same locations.
3.1.3
Electrical metallic tubing - EMT (ferrous metal)
Electrical
Metallic Tubing (EMT), also commonly called thin-wall, is a listed steel
raceway of circular cross section which is unthreaded, and nominally 10 feet
(3.05m) long (see Figure 3). The outside corrosion protection is
zinc-based and the inside
has an organic
corrosion-resistant coating. Trade sizes are 1/2 through 4. .EMT is installed
by use of set-screw or compression-type couplings and connectors. EMT is
permitted to have an integral coupling which is comprised of a “belled” end of
the tube with set screws .
Elbows are
bent sections of conduit or tubing to change raceway direction or bypass
obstructions. IMC and RMC elbows are threaded on each end. Elbows of the
correct type and dimensions are an important element of the raceway
installation. Factory-made elbows in both standard and special radius are
readily available for all sizes of steel
RMC, IMC, and
EMT. Elbows with integral couplings are available in trade sizes 2-1/2 through
4. Specialized large radius elbows, often referred to as “sweeps,” are also
available. They are custom ordered to solve various installation problems.Some
typical uses of sweeps are to facilitate easier wire pulling, install conduit
in limited or
geometrically
difficult space, provide specific stubup length, or enhance protection of
communication or fiber optic cables during pulls. Physical dimensions of
factory-made elbows for RMC, IMC, and EMT vary between manufacturers. When
installing factory elbows for a job, being aware of this variability can avoid
installation problems. Always measure to be safe. To order
factory elbows, you need to specify the raceway
type, trade
size, and angle of bend. If ordering a special radius elbow, the radius will
also have to be specified.
3.2.2
Nipples
A nipple is a
short length of conduit or tubing material which is used to extend the system.
Nipples are used between conduit and items such as (but not limited to)
fittings, boxes, and enclosures or between two boxes, two enclosures, etc. When
nipples are used to extend a conduit run to an enclosure, box, etc., the
percentage wire fill requirements shown in Chapter 9, Table 1 of the NEC apply;
for example, 40-percent fill for three
or more
conductors. When a nipple is installed between boxes, enclosures, etc. and the
nipple does not exceed 24 inches (610 mm), wire fill is permitted to be
60%.Factory-made RMC nipples are threaded on both ends and are readily
available in all sizes in lengths 12 inches (305 mm) and under. Longer lengths
are available by special order or may be fieldfabricated.
3.2.3
Couplings
Each length of
steel RMC and IMC is furnished with a coupling on one end. Additional threaded
couplings are readily available for all conduit sizes. Steel RMC and IMC with
an integral coupling are available in trade sizes 2-1/2 through 4. This is a
coupling which permits joint make-up by turning the outside coupling rather than
the conduit (see
Figure
4).
EMT with an integral coupling is available in trade sizes 1-1/4 through 4. The
EMT has a belled end with set-screws.For threadless fittings for use with RMC,
IMC, and EMT
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