Archive for August, 2015


What to look for when purchasing an EMF pipe and cable locator (Part 2)

Monday, August 31st, 2015

Aside from considering the type of function the equipment will have, the next thing to take note of is the training that the newly purchased equipment will require. Although training is highly imperative for the less experienced operator, even the most experienced operators will benefit greatly from undergoing training with a knowledgeable salesperson so you can get the most out of your new instrument. The extensive training programs offered by NULCA can educate new and old operators alike, but getting training directly from manufacturers and suppliers of each locator you purchase can show you the specific benefits of your equipment.
Lastly, it’s just as important to think about the available after sales service for your equipment as the actual purchase of the equipment itself. The existence of a full-service center that’s locally accessible can play a huge part in making repairs and replacement possible without too much hassle. Other things to check is their turnaround time for repairs (if they’re done locally or have to be sent overseas) and if they have a loan/rent system available to avoid lengthy downtimes if your locator is in repair for weeks. To read the full article, click here

What to look for when purchasing an EMF pipe and cable locator (Part 1)

Monday, August 31st, 2015

An EMF pipe and cable locator is a vital tool for any pipeline company, and several factors must be considered before purchasing the instrument to ensure accuracy and appropriate application will maximize its full potential. With some great insights that he has gleaned from years of experience in the industry, Anthony Johnstone shares some helpful tips in choosing a locator which includes the type of equipment, the training that will be required of its operator/s and what kind of servicing the equipment will need. In this two-part series, we will first briefly discuss the types of equipment and tackle the training and services needed in the second part.
There are three main categories of locators based on their function: Cable avoidance products (which have very basic functions and could easily be operated by someone relatively new in the field), General locators (that have an increased number of controls available for more complex locations), and Specialized locators (which offer features unique to that machine and can greatly benefit certain types of work). Read more about it here

Effective method to repair natural gas corroded pipelines

Friday, August 28th, 2015

Recently, a series of pipeline explosions caused by corrosion has put the pipeline safety, maintenance and repair procedures in the natural gas industry under close scrutiny. With millions of miles of aging natural gas pipelines in the continental US alone, companies are under pressure to take a more proactive stance in identifying areas which are in need of repair, and undertaking necessary remediation or restoration. The good news is, manufacturer Pipe Wrap LLC has come up with a product called A+ Wrap that effectively extends the life of high pressure natural gas pipelines. This repair solution is composed of a two-part putty that activates when mixed together with water, along with a composite wrap. It is a strong composite sleeving system which permanently repairs gouges, cracks and dents near welded areas or along any shapes or configurations including reducers, bends, tees, manifolds or elbows (except for those in longitudinal or girth welds). Even external defects associated with pipes that have been compromised as much as 80 % can be restored to its full-strength condition. It also has smart pig detectability element without the drawback of creating cathodic reactions, and has been identified as an effective alternative to sleeves, welding or complete pipe replacement. Read the full review here

PIPELINE REPAIR & INTEGRITY PRODUCTS

Friday, August 28th, 2015

For more than 80 years, Furmanite has been providing pipeline companies with sophisticated engineered products and superior services with the topmost quality standard in achieving maximum asset uptime for clients. They improve system reliability and pipeline safety for (Hot Tap) branch connections. Their Furmanite Split Mechanical Pipeline Repair Clamps can be installed to pipe sections while under pressure and can contain these damaged or leaking sections quickly and effectively. Furmanite also supplies both Composite Repair Wrap Sleeve and Welded Pipeline Sleeves which can be installed onto existing pipeline to increase structural integrity and long term reliability for pipes that have suffered damage during installation, nearby construction, wall thinning or localized surface corrosion/pitting. Piping and Pipeline Reinforcing Saddles, Full Encirclement Saddles, and Reinforcing Pads are available options for reinforcing and stabilizing existing pipeline branch connections or new Hot Tap branch designs. For situations where welding is impossible or undesirable, Furmanite Mechanical Pipe End Connectors and Flanged End Connectors can be used to provide a safe connection process on pipelines with leaking gas or with the existence of any flammable environment. Read more about it here

Pipeline inspection technique

Thursday, August 27th, 2015

A new technology is helping the construction and repair of pipelines become more accurate and less costly. Nowadays, the urban sprawl and growing population in major cities has increasing demand to construct better water and sewer pipes as well as ensuring pipeline safety in aging ones. The use of the new teleinspection technology such as robotic CCTV crawlers, pushrod portable systems, laser profiling and sonar profiling helps in construction, maintenance, repair and planning for pipeline infrastructure. CCTV crawlers allow inspection and surveying of installations with the use of 3D Optoscanner that can capture and convert images into a 360 degree image. Laser profiling compliments the CCTV by profiling images using split laser technology under normal light conditions to determine damages inside the pipe assets. Lastly, sonar profiling systems allows inspection of pipes that are submerged underwater. These technologies helps to make inspections, repairs and planning more accurate, reliable and less prone to human error. To read more about the technology, click here

Radiodetection Transmitter Setup

Wednesday, August 26th, 2015

The RD8000 is an advanced radio detection machine for cable and pipe location. It is a smart programmable radio detection machine, which you can set to your desired frequency. The digital screen menu allows users to choose the desired frequencies and voltage to target specific conduits. One of the advantages of having this smart technology is it remembers your previous activities so you don’t have to recalibrate it every time you start. This cutting-edge piece of technology makes cable fault finding a lot easier. Frequencies can be easily adjusted to find bad conduit and voltage will be reflected for accurate reading. Basically, a bad conduit gives high voltage reading. The RD8000 is a cost-effective yet highly reliable detection machine for finding cable faults. With its smart and programmable feature, the RD8000 is a very user friendly equipment. In other words, the RD8000 is the smartest advance radio detection technology in the market today that provides reliable, accurate, fast and economic solution to cable locators. To see the RD8000 up close, click here or watch the video below…

How to Use Underground Pipe & Cable Location Systems

Wednesday, August 26th, 2015

Pipe and cable locators are used to identify buried services such as cable lines, sewers, gas and water lines. Most of these are buried underground so careful planning when unearthing or excavating is needed as a strike into one of these services may be risky and dangerous. The CAT or the Cable Avoidance Tool, helps professional locators to identify buried services by detecting signals coming from these metallic infrastructure. The CAT has 3 basic uses; Power, Radio and Genny modes.
The Power mode is used to detect power signals from loaded electric cables, the Radio mode is used to detect radio signals from buried pipes and cables from radio and communication lines and the Genny mode is used to detect buried conductors, like valves, sockets and plugs.
For small non-metallic pipes, the Flexitrace is used for detection. The Flexitrace is a flexible fiberglass rod which can locate non-metallic pipes and ducts up to 3000 mm in depths. Together with Flexitrace, Genny can generate signal through wire conductors using the length of the Flexitrace of 50-100m. Read more about the CAT here

Cable Detection, Cable Location & Cable Avoidance Tools (CAT’s)

Wednesday, August 26th, 2015

Underground cable works and repairs can be very tedious and risky. Even with the most experienced cable locators will sometimes miss and hit other cables, which can happen if the cable is emitting a poor signal. Signal transition may vary from location, and locators have to constantly watch for the sensitivity. A simple miss of calculation or adjustment may cause some cables to be damaged. The risks may involve electrocution, flooding, burns from explosion and sometimes property damages that result to onerous payments. To avoid such inconveniences, cable locators use the CAT, or the Cable Avoidance Tools which is designed to reduce human error in cable locating. The CAT or Cable Avoidance tool warns users that there are cables beneath the ground prior to excavating or unearthing, which will help avoid cuts on wires that may lead to explosion and electrocution. Cable Detection EziCAT model is an advance tool brand that has full sensitivity mode replacing old manual controls, improving the health and safety of workers by reducing underground cable strikes which may lead to accidents. Read more about this advanced tool here

Locating That Underground Cable Fault

Monday, August 24th, 2015

There are hundreds of cables buried beneath the ground. A repair on one of those buried lines used to be like finding a needle in a haystack, but not anymore. Cable faults can now be spotted very easily using modern detection technologies. Cable locators and detection technologies make the task less time-consuming and much easier than before.

When locating cable faults, one must have a certain set of skills necessary to do the job without damaging the cables. There are several methods in cable fault finding. You can sectionalize the cable or divide it into small cables and test it. Thumping (inducing a high voltage current to the cable) will cause the faulty part of the grid to make a loud noise. However this may cause degradation on the rubber insulations. Time Domain Reflectometry (TDR), sends a low-energy signal that causes no damage to the insulations but the results are not completely reliable. However the result can be used to decide whether thumping is needed in the area.

Other methods include High-voltage radar method, the surge pulse reflection method and the voltage pulse reflection method. Faulted cables produce electrical disturbances and these disturbances can be detected through these methods. Click here for the full article…

Use an underground cable locator to find buried cable

Monday, August 24th, 2015

About 40 years ago, locating used to be about finding buried waters, gas or sewer lines. Now, the telecom companies have joined in on these underground activities. Underground repairs for ripped cables can be a very difficult task. Cables can be found on top of cables and finding the right cable can be a very tricky job.

Cable locators are quite helpful as they can pinpoint the location of cables in need of repair. Cables emit some electromagnetic frequencies that are traceable. With the help of locators, there is no longer any need for backhoes to unearth buried cables.

A cable locator generally has 2 parts, a receiver and a transmitter that can be set into a specific frequency of the cable. There are different ways of transmitting signal into a cable, passive signals, direct connect general induction and inductive coupling. A receiver picks up the signal in peak, null and differential. Interpreting these signals can tell you the depths and locations of cables underground.

These cable locators make wiring repairs of buried cables and finding sewer lines, gas and water easy. New models now have screens so reading can be made easier. Read more about it here