06 Oct

3 often overlooked benefits of good outdoor lighting

While designing buildings, residential or commercial; outdoor lighting is often neglected and much attention goes to the indoor lighting. Presumably, fewer activities take place outside the house at night so why incur the additional expense of outdoor lighting? This is where we go wrong; as you would notice many outdoor lightings are erected later to bring out better visibility around buildings at night. These three benefits of outdoor lighting are often neglected.

  1. Both Premise and Compound security

It is more likely for thieves and other perpetrators to get access to your compound without getting noticed. This is worse when your outside is not lit and perpetrators to your properties cannot be identified. Modern technology like CCTVs cannot serve where there is no proper lighting either. The security of buildings without adequate outdoor lighting is compromised and ends up being costly in replacing for stolen items or accidents emanating from poor lighting.

  1. Improved working conditions at night

Proper light is important in activities going at night. Besides guards easily identifying something unusual when the outside is well lit, it becomes safer for them to walk around the compound without injuring themselves. Drivers and pedestrians too can safely commute at night with reduced accidents showcasing. The 24/7 businesses who have good outdoor lighting also enjoy huge sales since well-illuminated business premises are easily identified by their potential customers.

  1. Add to the building value

A house that is designed with effective outdoor lighting is both attractive and easy for operations. More tenants to commercial buildings will prefer well outdoor illuminated building which means high occupancy and consequently high returns to buildings with outdoor lighting. Notably, most big cities in the world are busy both day and night and therefore require good outdoor lighting appropriate for business and security at night.

29 Sep

What is the criterion for selection of a 33kv/11kv or 66kv/11kv substation?

Substations are important complementary tools in a power station that are mostly used while stepping up or stepping down power voltages while transmitting it. Due to power loss in transmission over long distances, it is necessary to transmit power over long distances at very high voltages thus power step up, while this power needs to be stepped down to consumable levels at connection points.

The selection of 33kv/11kv substation is appropriate in residential areas and power transmission from a substation to a substation at close range. Notably, the 11kv lines have less voltage yet a high current which can be lost if transmitted over a long distance but which is convenient for many household uses. The 33kv feeders have a difference with that of 11kv by 3 factors and thus are convenient to use where there is more expected power consumption especially the connection between cities and other densely populated close distribution centers.

A 66kv/33kv substation is commonly used where the power transmission is a target to go over long distances before being fed to the consumer unit. Factoring voltages to higher units are important since power loss occurs in form of current and not voltages and thus it is logical to convert the voltages in a higher ratio through stepping up and eventually step it down when it reaches the consumer.

Using other substation elements such as the capacitor bank and the reactors, both the 33kv/11kv and the 66kv/11kv substations are switched into either high or low voltage accordingly depending on the energy requirements that cater for VAR compensation, power dissipation, good flow among other power transmission parameters. The key determinant for the connection type is however more on the power load where a load of up to 5 MVA would require a rating of up to 33KV while the load of 80 MVA works best with a voltage rating of 66kv.

15 Sep

Wiring System Design: Cable Tray vs. Conduit

Electric wiring is done from one end to another where distribution is a necessary element to get power to its destination. Wires and cables cannot transmit the power solely and therefore they are pulled through the conduit as the mainstay of power distribution. Cable trays are gaining momentum in industrial plants where most companies are taking up the use of cable trays where data and communication cable market readily use the cable tray. Power system contractors and engineering are yet to fully engage in the massive use of the cable tray. (more…)

09 Sep

How to Bury Underground Cable

For you to safely and effectively install an underground power line in your place of residence, there are a couple of things that you need to consider. The first thing being the type of soil that the power line is going to pass under; the softer the soil the deeper should lay the power line and vice- versa. (more…)