Standard Details. SUMMARY: This guide provides general recommendations for the selection of methods, equipment, and tools that have been found to be practical for the stringing of overhead transmission line conductors and overhead groundwires.
The guide also includes a comprehensive list of definitions for equipment and tools used in stringing and for stringing terms commonly employed. This guide does not address special conductors such as those used for river and canyon crossing. These conductors may be custom designed and often may require special considerations. Additional Resources Details.
Pars Approved PAR. Working Group TPC Michael Kipness. Step 5: The placing vehicle must be driven parallel and close to the pole line as possible when maintaining constant speed and tension. Step 6: Once the cable pay-off is an adequate distance past the next pole in the route, the cable should be raised to the required pole height and placed into a J hook or temporary support. Step 7: Continue to install span by span until the entire run is completed and the final dead-end pole has been reached.
Step 8: At this point, the cable should be tensioned to the correct sag level using suitable chain hoist equipment at the "free" end of the cable before it is dead-ended to the pole. Step 9: Finally, the cable can be lifted out of the temporary J hooks or temporary supports and permanently fixed using tangent assemblies.
The stationary reel method is generally used when the cable is installed above the existing lateral cable and other obstructions. The types of vehicles and available placing equipment will also depend on whether to use this method or not.
The deployment procedure is as follows:. Step 1: Install a series of temporary cable supports, chutes, or tangent blocks at each pole along the route.
Step 2: Then, a pull line is threaded through the cable supports and attached to the outside of the cable using a breakaway swivel and a cable pulling grip.
It is then used to pull the cable through the cable blocks into position. Step 3: If the cable is pulled with a winch, the pulling rope or winch line must be installed through the cable supports.
A non-metallic rope or winch line should then be used to pull the cable. Step 4: When the installation tension exceeds the maximum rated cable load MRCL , the pulling winch should be calibrated to stop the operation. A dynamometer with an audible alarm or visual display should be used to monitor installation tension in case this type of winch isn't available.
Step 5: After the cable has been pulled into its final position, with slack for building access or for splicing, the cable should be tensioned until the correct sag level is reached. Then it should be terminated at each dead-end pole along the route. Work doesn't finish completely after aerial fiber optic cable installation. Post-construction inspection is also important for a successful cable deployment. Check the following items to examine whether your installation is successful.
In a completed home or garage, a solid wall covering such as sheetrock. Drywall or even wood will protect the wiring from damage. The key to safe and compliant exterior wiring is to use framing to protect and support the cables. This means that cables should not pass through joists or studs. In this post, we will discuss how to run overhead electrical wire to the garage. The International Residential Code , the most widely adopted building code in the United States, does not require wiring in detached garages.
There are certain requirements for garages with electrical service. Please note that regulations vary from state to state and are only minimum requirements. Garages with electricity shall have at least one interior light that you can control with a wall switch.
The program garage door openers with illuminations do not meet this requirement, even if a separate switch controls the lighting. A floor switch shall be provided in power-operated garages in front of each exit door, controlled by a wall switch or motion sensor.
Vehicle doors are not considered to be exit doors for the regulations. Garages with electricity shall have at least one electrical outlet. No restrictions exist as to the location of the points of sale.
It would help if you protected garage electrical outlets with a ground fault circuit interrupter GFCI. If you have a separate garage or shed at home, you will need to power them separately. The standard option is to install overhead power lines from the house to the garage. If you are installing a sub-divider in the garage, you will need to use a cable that is appropriate for the wire sizes of the sub-divider.
This is usually 30, 40, or 50 amps.
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