Home Builder Developer - Interior Renovation and Design

Your account has been temporarily locked, so no orders can be placed at this time. Please contact our accounts receivable department at 877-287-8634 or email accountsreceivable@curtgroup.com.

Any vehicle towing a trailer requires trailer connector wiring to safely connect the taillights, turn signals, brake lights and other necessary electrical systems.

If your vehicle is not equipped with a working trailer wiring harness, there are a number of different solutions to provide the perfect fit for your specific vehicle. Complete with acolor coded trailer wiring diagram of each plug type, this guide walks through each available solution, including custom wiring, splice-in wiring and replacement wiring.

If you're looking to replace the wiring on your trailer, check out ourtrailer rewiring guide.

A. Custom wiring

Vehicle-specific plug-and-play harness that requires no splicing and provides a standard trailer connector

B. Splice-in wiring

Taillight converter that splices into your existing vehicle wiring and provides a standard trailer connector

Custom wiring is the ideal solution for installing trailer light wiring on your vehicle. A custom wiring harness or 'T-connector' is a vehicle-specific harness that plugs in without any spicing required and provides a standard connector output, such as a 4-way flat.

All CURT custom wiring comes with the exact components needed for a complete installation on the vehicle, including vehicle-specific plugs and an electrical converter, if needed.

Another type of custom wiring is original-equipment (OE) wiring or USCAR wiring. Select vehicles come with a standardized USCAR socket that provides a connection point for a CURT OE wiring harness.

Like a T-connector, anoriginal equipment wiring harnessplugs into the USCAR socket without any cutting, splicing or soldering required, and it provides a standard trailer wiring output, such as a 4-way flat or 7-way RV blade.

Learn more about USCAR wiring

If custom wiring is not available for your particular make and model, a taillight converter may be required to equip your vehicle with the proper trailer light wiring connection.

A taillight converter or electrical converter splices into your vehicle and provides a standard trailer plug wiring connector, typically a 4-way flat. The converter converts the vehicle's complex wiring system to be compatible with your trailer's simple wiring system. To learn more about vehicle wiring systems, check out ourvehicle wiring systems guide.

If the trailer plug wiring on your vehicle or trailer is damaged or not working correctly, you can replace the connector with a CURT splice-in plug or socket.

Plugs (trailer side) and sockets (vehicle side) are available in all standard formats and can be spliced into your existing tow wiring. Find the trailer light wiring diagram below that corresponds to your existing configuration.

If you are rewiring your trailer completely, check out ourtrailer rewiring guide.

Following the standard method for wiring a trailer connector is vital to the safety of your vehicle while towing. Connecting the wrong color wires will result in mismatched taillight functions and confusion on the road.

Use this 4-pin wiring diagram to properly wire your 4-wire trailer plug.

GreenRight turn / brakesYellowLeft turn / brakesBrownTaillightsWhiteGround

5-pin trailer wiring is very similar to 4-pin wiring, but it adds in a blue wire for the reverse or backup lights.

Not all trailers have reverse lights, so consider your own trailer as you wire in a 5-way plug.

BlueReverse lightsGreenRight turn / brakesYellowLeft turn / brakesBrownTaillightsWhiteGround

6-pin trailer wiring introduces two new functions, a wire for connecting trailer brakes and a wire for +12-volt auxiliary power.

6-way wiring is most common on gooseneck trailers and allows for use with a brake controller.

BrownTaillightsBlueElectric brakesGreenRight turn / brakesYellowLeft turn / brakesWhiteGroundBlack+12 volt

The 7-way round trailer plug is to be distinguished from 7-way RV blade plugs. The wiring connections and placement are different.

Be sure to review your own trailer connector before wiring.

WhiteGround BrownTaillights GreenRight turn / brakes RedAuxiliary power YellowLeft turn / brakes BlackReverse lights BlueElectric brakes

The SAE configuration of a 7-way RV blade plug should not be confused with the traditional configuration. Different wire colors are used for different functions.

Review your own trailer before wiring.

BrownTaillightsYellowLeft turn / brakesWhiteGroundBlueElectric brakesGreenRight turn / brakesOrange+12 voltGreyReverse lights

7-pin trailer wiring is one of the most popular wiring configruations, particularly the traditional configuration versus the SAE J2863.

Use this 7-pin trailer wiring diagram to properly wire your 7-pin trailer plug.

GreenTaillights RedLeft turn / brakes WhiteGround BlueElectric brakes BrownRight turn / brakes Black+12 volt YellowReverse lights

Note: Not all trailers are equipped with reverse lights (yellow wire). The position of this wire may vary for your own specific setup.

Note: The ground wire color on all trailer plug types is always white. Other colors vary in function, depending on the configuration.

Download complete table

The traditional 7-way RV blade format is typically used on 5th wheel trailers, travel trailers and campers. The trailer wiring colors for this configuration are different than those on the SAE configuration.

The SAE J2863 7-way RV blade format is typically used on gooseneck trailers, utility trailers, cargo trailers and equipment trailers.

Trailers are equipped with different plug types based on their electrical components. The chart below provides examples of common trailers and the types of plugs they typically use.

Utility trailer

4-way flat

6-way round

7-way RV blade

Boat trailer without surge brakes

4-way flat

7-way RV blade (rarely used)

Boat trailer with surge brakes

5-way flat

6-way round

7-way RV blade

Pop up camper

6-way square

6-way round

Travel trailer

7-way RV blade

6-way round

7-way round

5th wheel trailer

7-way RV blade

6-way round

Gooseneck trailer

6-way round

7-way RV blade

Learn more about different trailer types here. Refer to the wiring diagrams above for functions of trailer wiring colors.

Discover more great tips and how-tos on theLippert blog-- your destination for all things RVing, towing, boating and beyond!

Go here to read the rest:
Trailer Wiring Diagram and Installation Help - Towing 101

Category Wiring Installation | Comments Off

Raspberry Pi | Wiring | Download & Install | Wiring Pi

- December 14, 2022 by Mr HomeBuilder

WiringPi is PRE-INSTALLED with standard Raspbian systems. Please DO NOT try to follow any installation instructions you may be given anywhere else. THIS PAGE is the definitive and proper way to do it.

Also note: WiringPi is developed and tested on a Raspberry Pi ONLY. It is for C and RTB BASIC programs on. If you are trying to install it on anything else, then good luck.

is all you need.

WiringPi is maintained under GIT for ease of change tracking, however there is a Plan B if youre unable to use GIT for whatever reasons (usually your firewall will be blocking you, so do check that first!)

Note: wiringPi is NOT hosted on Github. There are many forks that you may find there, but they are not the original version maintained by myself.

To view the wiringPi sources, then go to:

https://git.drogon.net/

and select the wiringPi link.

First check that wiringPi is not already installed. In a terminal, run:

If you get something, then you have it already installed. The next step is to work out if its installed via a standard package or from source. If you installed it from source, then you know what youre doing carry on but if its installed as a package, you will need to remove the package first. To do this:

Then carry on.

If you do not have GIT installed, then under any of the Debian releases (e.g. Raspbian), you can install it with:

If you get any errors here, make sure your Pi is up to date with the latest versions of Raspbian: (this is a good idea to do regularly, anyway)

To obtain WiringPi using GIT:

If you have already used the clone operation for the first time, then

Will fetch an updated version then you can re-run the build script below.

To build/install there is a new simplified script:

The new build script will compile and install it all for you it does use the sudo command at one point, so you may wish to inspect the script before running it.

Click on this URL: (it should open in a new page)

https://git.drogon.net/?p=wiringPi;a=summary

Then look for the link marked snapshot at the right-hand side. You want to click on the top one.

This will download a tar.gz file with a name like wiringPi-98bcb20.tar.gz. Note that the numbers and letters after wiringPi (98bcb20 in this case) will probably be different theyre a unique identifier for each release.

You then need to do this to install:

Note that the actual filename will be different you will have to check the name and adjust accordingly.

run the gpio command to check the installation:

That should give you some confidence that its working OK.

WiringPi is released under the GNU Lesser Public License version 3.

See the article here:
Raspberry Pi | Wiring | Download & Install | Wiring Pi

Category Wiring Installation | Comments Off

Single Phase Electrical Wiring Installation in Home NEC & IEC

- December 14, 2022 by Mr HomeBuilder

Single Phase 120V/230V Distribution and Panel Board Wiring in Home

Single Phase wiring installation is the most common wiring in residential buildings. In Single Phase supply (230V in UK, EU and 120V & 240V in the US & Canada), there are two (one is Line (aka Phase, Hot or Live) and the other one is Neutral) incoming cables from the utility poles to the kWh energy meter and then directly connected to the main distribution board (Consumer unit).

In this step by step tutorial, we will show how to wire a single Phase Consumer Unit Installation in home from Utility Pole to a Single-Phase Energy Meter & Single-Phase Distribution board and then How to connect Single Phase Loads in single Phase Wiring Distribution System in home electric supply system.

Before go in details, you will have to know what is a Single Phase and Three Phase Supply, their applications as well as the role of RCD, MCB, MCCB, CB, DB, MDB, Final and Sub Circuits, Fuses, Switches etc.which is already discussed in our previous electrical wiring installation tutorials.

CT Installation and Wiring – Continental Control Systems, LLC

- December 14, 2022 by Mr HomeBuilder

SAFETY WARNING! Current transformers (CTs) are typically install in electrical equipment with lethal high voltage levels. Before attempting to install CTs read the CT Installation Safety page.

CAUTION! WattNode meters are designed to work only with CTs that have a 0.333 Vac output. This type of CT has a built-in burden resistor that produces a safe low voltage output signal. The use of any other type of CT will result in incorrect power measurements, and may permanently damage the WattNode meter.

Download: CT Installation and Wiring Application Note (AN-130) (PDF, 3 pages)

Accu-CT Series split-core CTs open by squeezing the knurled panels to release the latch and pull / rotate the top open. Make sure the mating surfaces are clean. Debris will increase the gap, decreasing accuracy. Place the CT around the conductor and rotate the top back to the closed position until the latch snaps closed. Secure the CT on the conductor using a cable tie through the CTs window and around the conductor.

CTML Series split-core CTs open by pulling up on the latch. Make sure the mating surfaces are clean. Debris will increase the gap, decreasing accuracy. Place the CT around the conductor and squeeze closed until you hear the latch snap closed.

CTS Series and CTBL Series split-core CT models can be opened for installation around a conductor or bus-bar. These CTs have two parts, a C shaped body and an I section which is removed for installation. To open a CTS model split-core CT, pull the I section straight-out of the C shaped body. To open a CTBL model bus bar CT, first remove the thumb-screws that secure the I section. A strong pull is required, especially when the CT is brand new.

The removable section only fits one way, so as it is removed, notice how the steel core pieces fit together. When closing the CT, be sure to match up the ends the same way. If the CT seems to jam and does not close, the steel core pieces are probably not aligned correctly. Do Not Use Excessive Force! Instead, re-position or rock the removable portion until the CT closes without excessive force.

After a CTS model split-core CT has been reassembled, a nylon cable tie may be secured around the perimeter of the CT to prevent accidental opening. On CTBL bus bar models, reinstall the nylon screws and tighten them with your fingers. Do Not Use A Screwdriver!

Note that the C shaped body and the removable I section of opening style CT are calibrated as a single unit. For best accuracy, these parts should not be interchanged with other CTs.

Solid-core CTs require that the phase conductor being measured be disconnected at one end so that it can be passed it through the opening in the CT. This is not difficult when the wire gauge is small but becomes impractical with larger wire gauges and multi parallel conductors.

For correct measurements, CTs must be installed on the phase conductor that corresponds to the voltage input connection. The voltage input connections are on the green, five position, screw terminal block. For example, the A CT must be installed on the same phase conductor that is connected to A Voltage input. Likewise, the B CT is installed on the same phase as the B Voltage input, and the C CT input is installed on the C Voltage input. It may help to use colored tape or labels to identify the wires.

To reduce magnetic interference between CTs on adjacent phases, it is a good practice to separate them by about 1 inch (25 mm). This also helps to prevent dust and debris from forming a bridge across the phase conductor terminals or bus bars and possibly causing a flashover arc.

For best accuracy, the CT opening shouldnt be more than 50% larger than the phase conductor. If the CT opening is much bigger than the conductor, position the conductor in the center in the CT opening. If that is not possible, try to position the conductor in the bottom of the U shaped half of the CT, away from the opening end where there is magnetic flux leakage.

Plastic cable ties can be used to secure the position of the CT on the phase conductor. A cable tie can also be secured around the perimeter of some models of CTs to prevent them from accidentally opening.

Refer to the CT Selection page for more information on choosing CTs.

CTs are marked with a symbol (arrow) or label which indicates the correct mechanical orientation of the CT on the conductor being measured. Find the arrow or label This side towards source on the CT and install the CT with the label or arrow facing toward the current source: generally the utility meter or the circuit breaker.

In addition to installing CTs with the correct mechanical orientation, electrical polarity, as indicated by their white and black wires must also be correct. Each pair of CT wires connects to the appropriate terminal on the black six position screw terminal block. The terminals are labeled A CT, B CT, and C CT. The polarity of each pair of terminals is indicated by a white and black dot on the label. Be sure to connect the white wire to the phase terminal aligned with the white dot, and the black wire to the terminal with the black dot.

Remember that both the physical orientation and the electrical polarity of each phase must be correct for proper operation. If a phase is reversed either electrically or mechanically, and current flows in the reverse direction, the WattNode meter will measure, depending on the model, zero or negative energy for that phase.

If the CT lead wires are longer than necessary, they can be shortened. Short CT lead wires help to minimize interference from electrical noise. If the CT lead wires need to be longer than 8 feet, they can be extended. It is generally better to install the WattNode meter near the conductors being measured instead of extending the CT wires.

However, it is possible to extend the CT wires by 100 feet (30 m) or more using shielded twisted-pair cable. The National Electrical Code (NEC) requires that CT wires be run in conduit (raceway). If the distance is short, power conductors for the meters voltage inputs can run in the same conduit. However, when running longer distances, power conductors should not be run in the same conduit as CT extension wires to minimize power line noise from interfering with sensitive CT signals. Refer to the Current Transformer Wire Extension page for more information.

The NEC conduit fill table does not address twisted pair wires. CT wire gauges typically range from #20 to #18 AWG. The the diameter of a #18 AWG twisted pair CT wire is about the same diameter as a single #8 AWG insulated conductor, 0.231 in. Four #8 conductors are permitted in a 3/4 in.

If running several sets of CT lead wires in one conduit, assume each meter takes 3 x #8 conductors and use the NEC conduit fill table to estimate the conduit size required. For example, CT leads for three meters would be equivalent to 9 x #8 AWG conductors. From the table, we see 7 x #8 conductors are permitted in a 1 in. conduit and 12 x #8 conductors in a 1-1/4 in. If the run was long with several bends, an 1-1/4 in. conduit would be best.

Because the CT inputs of the WattNode transducer are susceptible to damage from electrostatic discharge (ESD), always ground yourself momentarily by touching the electrical enclosure or other grounded metal object before touching the transducer. This is a good practice to follow with all electronic equipment sensitive to ESD.

To connect the CT lead wires to the CT input terminals, first strip about 1/4 (6 mm) of insulation off the end of one of the wires, twist the bare strands together, insert the end into the terminal block, and tighten the screw securely. It will be easier to connect the wires to the terminal block if the block is first plugged into the meter.

Unused CT inputs could possibly pickup electrical noise, so it is a good practice to short out unused CT input terminals by connecting a wire jumper about 1 inch long between the white and black CT terminals. This is usually not a concern if there is no line voltage connected to the corresponding voltage input terminal.

Keywords: CT, current transformer, installation, wiring, connecting

View original post here:
CT Installation and Wiring - Continental Control Systems, LLC

Category Wiring Installation | Comments Off

Electricveda.com | Wiring Materials And Installation Methods in …

- December 14, 2022 by Mr HomeBuilder

1. Conduit Wiring and Installation Methods

Conduit wiring is a system of wiring using tubes (pipes) either steel or PVC, to provide good mechanical protection for its conductors drawn inside the tubes. It also gives high degree of protection from fire hazards to its conductors. Conduit pipes will be installed on the surface of walls or roofs by means of saddles or hooks or concealed inside the wall or roof or floor.

Modern building construction adopts conduit wiring (PVC conduit or GI conduit both in various mechanical strength depending on site requirement and project specification) and found mainly in two types: 1) Surface or Open type conduit installation, and 2) Recessed or Concealed type conduit installation.

Steel Conduits and Fittings are made out of heavy / medium / light gauge steel. It uses different technologies for manufacturing these tubes depending its thickness and surface treatments.

Galvanized Rigid Steel Conduit is recognized as the safest and most protective form of electrical raceway. It is important that steel conduit provides excellent physical / mechanical protection for wiring, and also acts as a ground shield, reducing EMI (electro-magnetic interference due to field emission) and minimizing any effect of external RFI (radio frequency interference). It is also act as an equipment ground conductor in a circuit, thereby reducing wiring requirements and simplifying installation. Steel Conduit can be installed indoors and outdoors, in dry locations or wet locations, exposed or concealed, in all atmospheric conditions and in hazardous locations.

Galvanized Electrical Metallic Tubing (EMT) is similar to rigid steel conduit but is much lighter, weighing approximately 40 percent as much as rigid steel conduit of the same nominal size. EMT can be used for both exposed or concealed work provided, where during installation or afterwards, it is not subjected to severe physical damage. Use of EMT is restricted to systems not exceeding 600 volts and to non-hazardous locations except (Class II Division 2 NEC Section 502-4 (b). Galvanized Steel EMT installed in concrete on grade or above generally requires no supplementary corrosion protection. However, when installed in concrete below grade level and in contact with soil or cinders supplementary corrosion protection consisting of a protective coating of bitumastic or asphalt base paint or plastic is generally applied. According to NEC Section 348-1, EMT run in or under permanently moist cinder fill must be encased in at least two inches of cinder free concrete unless the conduit is at least 18 inches below the fill.

1. Wires: Unless otherwise specified all wires shall be PVC insulated single core, stranded copper conductor conforming to BS 6004. All wires shall be colored as follows:

The size of wires shall be as indicated in the drawings.

2. Telephone Cables: The telephone cable used for telephone socket outlet shall be twin pairs 22 AWG, PVC insulated copper conductor wires, UL approved. The telephone cables used as main feeder connecting the telephone junction boxes to main telephone junction boxes shall be multi-pairs type, as specified on drawings.

3. Flexible Cords: The cords to connect short extension to the luminaries, immersion heaters, equipment etc. shall be heat resisting PVC insulated to BS 6500 - 1969 with copper conductors.

1. Unless otherwise specified all wiring accessories shall be Standard British type. The exact type & model shall be as specified in the drawings, bill of quantities or herein in the specific.

2. Outlet, Pull box, Junction Boxes and Fittings.

Each outlet, junction or pull box shall be of proper type, class and construction to suit the specific conditions encountered. Outlet pull box or junction boxes shall be conforming with IEE regulations and other applicable requirements that have been established by the various agencies, codes and authorities.

2.1 Outlets for light points, convenient socket outlets, power outlets, switch boxes, pull / junction boxes shall be code gauge 46 mm deep galvanized steel, and shall be of shapes and size to suit their respective locations and installations and shall be provided with covers to suit their function and installation.

2.2 Outlet boxes shall be equipped with fixtures or straps where required. All outlet boxes shall be provided with brass ground terminals.

2.3 All junction boxes/pull boxes shall have suitable covers.

2.4 Surface mounted outlet and junction boxes in the outdoor locations shall be of cast iron metal with threaded hubs.

2.5 The surface mounted indoor boxes shall be sheet steel painted purpose made for surface installation.

For internal use shall be of the grid assembly pattern with rocker operated switch units suitable for operation with inductive loads. Switches shall be either, one way, two way or intermediate as indicated in the drawings and shall be rated 20 Amps.

Switch plates shall be champagne, charcoal or satin chrome cover finish, MK make Accent type for all offices area.

Switch plates shall be Matt chrome cover finish, MK make ALBANY range for all services area, including toilets, kitchen, guard room, pump room, electric room etc. and metal clad cover finish shall be used in the factory, storage area, finished product, etc. where Electrical Metal Tube (EMT) pipes are used, as shown and described on drawings.

For internal surface installation switches shall be provided with matching steel box and shall be with metal clad finish.

External outdoor switches shall be covered with weather proof flap. EGA tube make.

Pull cord switches shall be of white molded plastic suitable for surface mounted and shall be supplied with matching patterns. These shall be manufactured by MK Co. Ltd. (England) or approved equivalent.

For flush indoor installation shall be 13 A, 3 pin switched socket outlet with indicator and manufactured to British Standard. Finishing to be Matt chrome cover finish, MK make ALBANY range for all services area, including toilets, kitchen, guard room, pump room, electric room etc. and metal clad cover finish shall be used in the factory, storage, finished product, etc. where Electrical Metal Tube (EMT) pipes are used, as shown and described on drawings.

Telephone outlets shall be suitable for surface or flush installation with American standard socket outlet. The finish of the switch plates shall be Matt chrome cover finish, MK make ALBANY range for all services area, including toilets, kitchen, guard room, pump room, electric room etc. and metal clad cover finish shall be used in the factory, storage area, finished product, etc. where Electrical Metal Tube (EMT) pipes are used, as shown and described on drawings.

Spur units shall be 20A or 45A, DP switch type with pilot lamp. For flush installation shall be switched and fitted with neon indicator and cord outlet on the front plate. Finish to be as specified elsewhere.

The DP switch outlet shall be suitable for flush or surface type of installation. The capacity as indicated on the drawings. The finish shall be Matt chrome cover finish, Mk make ALBANY range for all services area, including toilets, kitchen, guard room, pump room, electric room etc. and metal clad cover finish shall be used in the factory, storage area, finished products, etc. where Electrical metal Tube (EMT) pipes are used, as shown and described on drawings.

Connector outlets shall comprise flush overlapping plates of white molded plastic suitable for attachment to standard recessed steel boxes. These shall be fitted in three terminals a clamping device for outgoing flexible cable.

The wiring installation shall be in conformity with IEE regulation and/or approved equivalent standard.

Unless otherwise specified all wiring shall be in rigid PVC conduit embedded in wall, or ceiling or concealed in the false ceiling.

The size of conduits shall be selected in accordance with the IEE regulations and the minimum size of the conduit shall be 20 mm dia unless otherwise indicated or approved.

Factory made conduit bends shall be used where required. Conduits shall be kept at minimum of 100 mm from the pipes of other non-electrical services.

Separate conduits and runways shall be used for:

1. Lighting system.

2. Power outlets.

3. Emergency light.

4. Telephone system.

5. Fire alarm system.

6. Sound / public address system.

7. Television system.

8. Computer system.

Wiring for short extensions to outlets in hung ceiling or to equipment, motors etc. shall be installed in flexible conduits. Otherwise rigid conduits shall be used.

Conduits run on surfaces shall be supported on galvanized / PVC saddles which in turn are properly screwed to the wall or ceiling. Saddles shall be at intervals of not more than 60 cm. Fixing screws shall be with round cheese head or and rustproof materials. Exposed conduits shall be neatly run parallel or at right angles to the wall of the building. Pull boxes must be provided at the right angles and at a distance of not exceeding 20 meter length.

Conduits embedded into the walls shall be fixed by means of staples at not more than 60 cm intervals. Chase in the wall shall be neatly made and refilled after laying the conduit and brought to the finish of the wall.

Conduits buried in concrete structure shall be put in position and securely fastened to the reinforcement and got approved by the consultant before the concrete is poured. Proper care shall be taken to ensure that the conduits and boxes are neither dislocated nor choked at the time of pouring the concrete.

Suitable fish wires shall be drawn in all conduits before they are embedded.

Inspection boxes shall be provided for periodical inspection to facilitate draw and removal of cables. Such inspection boxes shall be flush with the wall in the case of recessed conduits.

Inspection boxes shall be spaced at not more than 12 meters apart or two 90 degree solid bends or equal.

Use of PVC conduits in places where ambient temperature is 60 degree c or above is prohibited. PVC conduits shall not be used in outdoor system. Conduits shall be free from sharp edges and burrs and grease or oil shall not be used for the purpose of pulling the wire. The entire system of conduits must be completely installed and rendered electrically continuous before the conductors are pulled in.

All PVC conduits shall be jointed with plain PVC couples using approved PVC jointing materials as recommended by the manufacturer. All joints shall be water tight. Junction between conduit and adaptable boxes, back outlet boxes, switch outlet boxes and the like must be provided with entry spouts and smooth PVC bushes.

A ground wire of not less than 2.5 sq. mm copper shall be run inside each conduit. The wire shall be insulated and color coded.

All final branch circuits for lighting and appliances, shall be single conductor cables run inside conduits.

Branch circuit conductor sizes shall be as shown in the schedule of quantities and drawing and conforming the requirements of the IEE regulations.

Home runs indicated in the drawings for the final branch circuits shall be kept in a separate conduit upto the panel board via switches wherever called for. No other wiring shall be bunched in the same conduit.

Flexible cords for connection to appliances, fans and pendants shall be 250/440V grade, three or four cores, with tinned stranded copper wires, insulated, twisted and sheathed with strengthening cord. Color of sheath shall be subject to the architect approval.

For each lot of wires the contractor shall supply a certificate issued by the manufacturer stating its origin, date of manufacture, constitution and standard to which it complies and the test certificates.

Looping system of wiring shall be used. Wires shall not be jointed. Where joints are unavoidable, these shall be made through approved mechanical connector.

Control switches shall be connected in the phase conductors only and shall be ON when knob is down. Switches shall be fixed in galvanized steel boxes. Chromium plated screws shall be used.

220 V (230 V) power supply wiring shall be distinctly separate form any other different voltage system and lighting wiring.

Though the circuit wiring is indicated on the drawing, contractor shall check and be responsible for the connection.

Each circuit phase wire from the distribution boards should be followed with a separate neutral wire of the same size as the circuit wire.

Each light point and outlet shall be identified with their circuit number and panel board number with a label pasted on them.

The entire installation shall be tested in accordance with IEE regulations for:

1. Insulation resistance.

2. Earth continuity.

3. Polarity of single pole switches.

A test certificate shall be submitted in standard performa as directed by the Supervising engineer.

See more here:
Electricveda.com | Wiring Materials And Installation Methods in ...

Category Wiring Installation | Comments Off

Gulfport FD, Air National Guards live tree fire demonstration encourages fire safety during the holidays – WLOX

- December 14, 2022 by Mr HomeBuilder

Gulfport FD, Air National Guards live tree fire demonstration encourages fire safety during the holidays WLOX

See the article here:
Gulfport FD, Air National Guards live tree fire demonstration encourages fire safety during the holidays - WLOX

Category Wiring Installation | Comments Off

Newton students start landscaping business, now helping those in need with free service – CBS Boston

- December 6, 2022 by Mr HomeBuilder

Newton students start landscaping business, now helping those in need with free service CBS Boston

Go here to see the original:
Newton students start landscaping business, now helping those in need with free service - CBS Boston

Category Power Washing Services | Comments Off

« old Posts new Posts »

Page 469«..10 20..468469470 471..480 490..»