Installation, Jointing and Termination of High Voltage and Low Voltage Cables
We specialise in the low voltage and medium voltage cable works by doing heat shrink joints and terminations under planned and breakdown conditions. We also have a strong supply chain to ensure that we supply with the different materials to satisfy the cable requirements with respect to size and voltage. We also do the different cable tests like pressure tests and tan delta tests. Our specialty is within the XLPE (PEX) and PILC (Paper) cable types.
Cable Fault Testing, Detection and Route Identification
RCB Solutions has the ‘state-of-the-art’ cable detection machines from Megger, which are able to pin-point the fault distance and depth, thus saving the Client time and money. This fault detector is also wheeled around, making it easy to reach the normally difficult areas not reachable through a normal machine fixed in van. We also have other auxiliary equipment to assist with the cable position through tracing, thus avoiding accidents when doing mechanical excavations. Because we take safety of our employees seriously, we have invested in the use of a hydraulic ‘cable spike’ to ensure that all the underground cables that we work on are not assumed not ‘live’, but are indeed ‘dead’ to be worked on.
Wiring of Facilities
Our company has extensive experience in the wiring of facilities. For planned projects, we have the knowledge of reading off the approved plans, work out the bills of material and get the correct material for the wiring of distribution boards, lighting, plugs and other circuits, and issuing the certificate of compliance (COC) after a successful installation. We have done this for various block of flats, hotels and commercial buildings, and guarantee our installations.
Inspection of Facilities an-issuing of Certificates of Compliance (COC)
For old, existing and new installations, we are able to do the electrical audits, inspections, and tests and issue the certificate of compliance (COC) upon successful inspections and tests. Remedial work is done at a competitive quote to ensure that the building ‘passes the tests’ in order for it to comply with the Electrical Installation rules as stipulated in SANS 10142.We do have a wireman’s license for this purpose.
Industrial Electrical Maintenance
We have the capability to work in industrial plants and warehouse of different sizes and shapes. Our expertise include knowledge of wiring for motors, pumps, compressors and other related automation plants within the fast moving consumer goods and other related industries. We also use suitable equipment including ‘cherry – pickers’ to reach for heights safely.
Electrical Infrastructure Development (rural & urban)
For our company, developmental projects like the infrastructure development within the electrical field is what we enjoy doing. We can lay new low and medium voltage cables, kiosks, meter boxes, mini sub stations and customer connections. We do underground or overhead line infrastructure which is normally referred to as ‘electrification’ for urban and rural environments.
Streetlights Installations and Maintenance
Our company does streetlight maintenance as well as new installations, including the energy saving light fittings in the form of LED’s. We have a strong supplier base where all the planning regarding the steel pole height and ‘lux levels’ are designed according to the Client’s needs regarding area of intended usage. We also ensure a balance load combination at kiosk level, and ensure that automation of lights is limited to the evenings only by installing the correct ‘day-night’ switches.
Installation and Maintenance of Overhead Power Lines (11kV to 132 kV)
We have the expertise and resources to execute maintenance projects within the overhead line environment by planting new poles, mounting overhead transformers and recloses, and stringing the conductors and changing the different insulators, among others. Our teams are led by supervisors who are authorised for ORHVS (Operating Regulations for High Voltage Systems) as per Eskom’s requirement for safety and compliance to OHS Act. We also empower our employees with the training specific to this environment.
A surge protector (or surge suppressor) is an appliance designed to protect electrical devices from voltage spikes. A surge protector attempts to limit the voltage supplied to an electric device by either blocking or by shorting to ground any unwanted voltages above a safe threshold. This article primarily discusses specifications and components relevant to the type of protector that diverts (shorts) a voltage spike to ground; however, there is some coverage of other methods.A power bar with built in surge protector and multiple outletsThe terms surge protection device (SPD), or transient voltage surge suppressor (TVSS), are used to describe electrical devices typically installed in power distribution panels, process control systems, communications systems, and other heavy-duty industrial systems, for the purpose of protecting against electrical surges and spikes, including those caused by lightning. Scaled-down versions of these devices are sometimes installed in residential service entrance electrical panels, to protect equipment in a household from similar hazards.A surge protection device mounted on a residential circuit breaker panel.Many power strips have basic surge protection built in; these are typically clearly labeled as such. However, power strips that do not provide surge protection are sometimes erroneously referred to as “surge protectors”.When you put together a computer system, one piece of standard equipment you’ll probably buy is a surge protector. Most designs serve one immediately obvious function — they let you plug multiple components into one power outlet. With all of the different components that make up a computer system, this is definitely a useful device.But the other function of a surge protector power strip — protecting the electronics in your computer from surges in power — is far more important. In this article, we’ll look at surge protectors, also called surge suppressors, to find out what they do, when you need them, and how well they work. We’ll also find out what levels of protection are available and see why you might not have all the protection you need, even if you do use a quality surge protector.The main job of a surge protector system is to protect electronic devices from “surges.” So if you’re wondering what a surge protector does, the first question is, “What are surges?” And then, “Why do electronics need to be protected from them?”A power surge, or transient voltage, is an increase in voltage significantly above the designated level in a flow of electricity. In normal household and office wiring in the United States, the standard voltage is 120 volts. If the voltage rises above 120 volts, there is a problem, and a surge protector helps to prevent that problem from destroying your computer.To understand the problem, it is helpful to understand something about voltage. Voltage is a measure of a difference in electric potential energy. Electric current travels from point to point because there is a greater electric potential energy on one end of the wire than there is on the other end. This is the same sort of principle that makes water under pressure flow out of a hose — higher pressure on one end of the hose pushes water toward an area of lower pressure. You can think of voltage as a measure of electrical pressure.As we’ll see later on, various factors can cause a brief increase in voltage.
- When the increase lasts three nanoseconds (billionths of a second) or more, it’s called a surge.
- When it only lasts for one or two nanoseconds, it’s called a spike.
If the surge or spike is high enough, it can inflict some heavy damage on a machine. The effect is very similar to applying too much water pressure to a hose. If there is too much water pressure, a hose will burst. Approximately the same thing happens when too much electrical pressure runs through a wire — the wire “bursts.” Actually, it heats up like the filament in a light bulb and burns, but it’s the same idea. Even if increased voltage doesn’t immediately break your machine, it may put extra strain on the components, wearing them down over time. In the next section, we’ll look at what surge protectors do to prevent this from happening.