Only our certified line electricians are permitted to work near power lines. As a general requirement, stay at least 20 feet away from overhead power lines. If you need to work closer than 20 feet, contact us to discuss how to make the area safe for everyone.
One 40VA transformer will reliably power up to two SunPak patio heaters, up to two SunGlo patio heaters with e-heads, one Schwank patio heater, or use individual transformers for each heater. Dimensions: 3-5/8" feet x 3" wide x 2" high.
Transformers Feet
One 20VA transformer will reliably power up one SunPak patio heater, or one SunGlo patio heater with e-head. Dimensions: 3-5/8" feet x 3" wide x 2" high. Multi Mount transformer can be mounted to electrical box or foot mounted.
Transformers shall be totally enclosed, or shall be placed at least 8 feet above the ground, or installed in a transformer house, or surrounded by a substantial fence at least 6 feet high and at least 3 feet from any energized parts, casings, or wiring.
(2) Enclosures for total underground flammable-liquid or oil-filled transformers must not be located within 8 feet of a doorway, operable window, stairways or fire escape. Adequate space must be maintained above the enclosure so that a boom may be used to lift the transformer from the enclosure. Click here to review the 296-46B-WAC-2017 window.fbAsyncInit = function() FB.init(appId: '268138333964180', xfbml: true, version: 'v3.1');FB.AppEvents.logPageView(); ; (function(d, s, id){ var js, fjs = d.getElementsByTagName(s)[0]; if (d.getElementById(id)) return; js = d.createElement(s); js.id = id; js.src = " _US/sdk.js"; js.async = true;//
--> Digital Magazine About Us Talk to Us Advertise BackyardEventsCo-op NewsBartholomew County REMCBoone REMCClark County REMCDecatur County REMCHarrison REMCHeartland REMCJay County REMCKankakee Valley REMCLaGrange County REMCMarshall County REMCMiami-Cass REMCNoble REMCOrange County REMCSoutheastern Indiana REMCSouthern Indiana PowerSteuben County REMCDIYEnergyProduct PicksProduct RecallsFeaturesFrom the EditorProfilePetsTravelCountyFoodSubmit A RecipeIndiana EatsOutdoorsSafety Toggle navigation MENU BackyardCalendar EventsCo-op NewsDIYEnergyFeaturesFoodOutdoorsSafetyFulton County REMC Maintain the safe zone around pad-mounted transformersBy Greg BitterlingPosted on Oct 24 2018 in Fulton County REMCGreg Bitterling
In many newer subdivisions and residential developments, overhead lines are no longer an option. Burying power lines also reduces potential system damage from high winds and severe storms. While consumers seldom see technicians working on the transformers unless there are power outages, they are regularly inspected by co-op crews riding through neighborhoods.
Author’s Comment: This rule requires outside secondary conductors from customer owned transformers to terminate in a single overcurrent protection device. However, outside secondary conductors from transformers under the exclusive control of the electric utility can terminate in up to six overcurrent protection devices in accordance with 230.71(A).
Subwoofer signals are pretty simple to carry well -- the most significant aspect of a sub cable is shielding, to keep extraneous low-frequency noise out. Our primary recommended sub cable is our own LC-1 low-capacitance audio cable -- but we have some other options, as shown below, as well as isolation transformers to deal with tricky hum issues and adapters to deal with feeding a single output into multiple inputs.
The Electric Research and Manufacturing Cooperative, Inc. (ERMCO) is one of the largest producers of oil-filled distribution transformers and transformer components in the United States. With a commitment to continuous improvement and quality, they manufacture their products across Tennessee and North Carolina in facilities containing state-of-the-art equipment.
You may have a green metal box near or in front of your home. These are called padmounted transformers and are a key part of the electrical system that delivers power to your home. They are only found in areas where electric service is buried underground.
Santa Fe, N.M.: PNM and Santa Fe Police Department would like to remind the public that electrical transformers are deadly. A vandal recently climbed a three phase 12,500 volt line utility pole located in downtown Santa Fe and tagged the electrical transformer with spray paint graffiti. The tagger was most likely within 2 feet of the live conductor and the transformer is approximately 30 feet from the ground. Proximity to a live wire is deadly if someone should come in contact and the aerosol paint used could create a cloud that conducts electricity Santa Fe Police officers have seen an increase in this type of activity and have chased vandals from poles.
"It is extremely dangerous for vandals to spray paint graffiti around energized wires and transformers," said Dennis Hernandez, PNM Northern Area Manager of Operations. "These vandals are lucky to be alive."
Downed Lines: Stay at least 30 feet away from the wire and keep others away. Electricity can pass from an energized source through a victim. If a rescuer touches the victim, the rescuer also can become a victim. If you see a line on the ground, assume that it is energized.
Control Traffic: Keep spectators away (at least 100 feet). After dark, light the scene as well as you can by directing headlights or spotlights on the broken or fallen wires. Metal or cable guard-rails, steel fences and telephone lines all may be energized by a fallen wire.
This arrangement allows a Transformer greater dynamic stability by re-locating the ankle joints away from the center-of-balance axis, and reduces wear on the ankles by allowing the foot to flex before absorbing an impact. Heel struts can increase the leverage afforded by the ankle joints by distributing the pressure over a larger area, dramatically increasing a Transformer's static stability without the need for big, clunky feet.
Heel struts are more common on Transformers with small frames or a high center of gravity. It has been noted that a disproportionate number of female Transformers have heel struts... but female Transformers also tend to have smaller frames and lack the big clunky feet of many male Transformers.
These work by having the stock feet fold back into the rear of his thigh, and then pegging these addon parts in their place. Being built around a ball and socket joint, this upgraded foot should afford enough ankle tilt and pivoting to make for more stability for display as well as some nice action poses.
In areas with underground electric service, do not plant shrubs or other vegetation around pad-mounted transformers or otherwise hide or block access. Obstructions near this equipment will make maintenance work hazardous or difficult for crews and may increase outage restoration times. Ten feet of clearance is needed in front of equipment so crews can safely open it, and 5 feet on each side allows easy access. Some large pad-mounted electric equipment requires 10 feet of clearance in the front and back.
The great advantage of moving power around as AC is that one can step up the voltage easily using a transformer to move it a long distance with minimal losses, then step it back down to something more suitable for household utilization when it arrives at its destination. While this is normally the province of electric utilities and heavy industrial facilities, nothing in the National Electrical Code prohibits the application of dry-type distribution transformers in a more...residential setting, so given the length of your run, the use of a transformer at each end to step the voltage up for the run and back down at the cabin is an option here.
I will cover the conventional (no transformers) way of doing it, first, with example pricing, and then show what it takes to use the genius of AC power distribution to your advantage here, again with example pricing. If you are not comfortable with any of the installation instructions here, of course, please speak with an electrician -- most electricians who have worked in the commercial/industrial space should be comfortable with installing a setup of this nature.
Without the aid of transformers, we wind up running 240V @ 50 or 60A over the 530' distance. This requires fat wire in order to keep voltage drop from becoming excessive, (3% is the typical limit for feeders) -- a typical choice would be 3/0 aluminum XHHW-2 for 50A (you could use 250kcmil instead for 60A, but the bump of two wire sizes should tell you why this isn't promising already), and you'd need 3 of those + a 4AWG (10AWG is the minimum for 60A, but the upsize for voltage drop forces us to upsize the grounds by the same ratio as per 250.122(B)) bare copper ground for this, as well as 540' (the extra is so we can do the stub-ups at the end) of 2" (the wires in question take up about 465 mm2 of fill, so it's slightly too fat a run for a 1.5" conduit) Schedule 80 PVC conduit and fittings. (We are doing the run in conduit in both cases as it'd be nonsensical to trench direct bury cable this far only to have to dig it all up again if requirements changed in the future.)
However, with a pair of transformers of appropriate rating, we can step the voltage up to 480V for the run, allowing us to use 6AWG copper or 4AWG aluminum for the phase and neutral conductors instead. Furthermore, we can get rid of a wire by running the 480V as single-phase instead of split-phase, leaving us with a single hot, a neutral, and a ground, at the cost of needing a beefier overcurrent device in one spot, which isn't that big a deal in the grand scheme of things, as it turns out.
The transformers we need are what are called dry-type distribution transformers. Unlike the oil-filled transformers on utility poles (which can burst into flame under abuse), these transformers have their windings air-cooled and use flame retardant insulation materials, rendering them fire-safe for use in or on buildings of all types. Specifically, we need a pair of NEMA 3R (outdoor rated), 15kVA (15,000 Volt-Ampere, or equivalently 15kW of resistive load) dry-type transformers with 240/480V primaries and 120/240V secondaries, the slash indicating that that side of the transformer can be wired for either voltage. These cost about $650 apiece if you can get a good price on them, particularly if you can find used ones in your area, and you will need two, putting your cost for the transformers at about $1300 for the pair. 2ff7e9595c
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