Protection

Lightning and Surge Suppression

Surge arresters can be viewed as a simple switch between two lines. When voltage rises as a result of a transient, the switch operates diverting the energy away from equipment. There will be a residual voltage left over. The amount of residual voltage is determined by the speed of operation of the surge arrester, ie. the faster the device operates, the lower the residual voltage

Class I	Class II
Primary brute force MOV lighting and surge suppression fitted in main DB for protection against partial direct and indirect lightning strikes.	Secondary SAD TVSS fitted in downstream sub DB's for protection against indirect lightning strikes, transient and surges.
PROTECTION LEVEL < 1000V IMP: (10/350) = 25kA IMP: (8/20) = 15kA IMP: (8/20) = 150kA	PROTECTION LEVEL < 480V IMP: (8/20) = 15kA

Line Conditioners

Modern day digital peripherals are designed to receive power within a certain voltage range. Voltage variation outside this specified range stress electronic components causing premature failure. These voltage variations are commonly referred to as sags and surges.

Ferro resonant (CVT) Voltage stabilizer Range (150VA - 20kVA)   Sags Also known as brownouts, sags are short term decreases in voltage levels. This is the most common power problem.

Servo electronic Voltage stabilizer Range (10kVA - 80kVA)   Surges A short term increase in voltage, typically lasting at least 1/120 of a second.

Uninterruptible Power Supplies

Our comprehensive range of uninterruptible power supply units ensure a continuous, disturbance free power supply to critical IT equipment. Units are categorised in three design topologies namely:

Off-Line, Line-Interactive and On-Line. Unit selection by topology depends on equipment nature and the level of protection required.

Off-Line UPS

An Off-Line UPS is typically a standby type unit that allows the mains supply through to the critical load as long as the mains voltage is within specified limits. Once the mains deviates outside these limits or fails, the UPS will switch on and supply the critical load with UPS generated power.

Typical Off-Line applications include: Non-critical workstations and point of sales terminals.

Standalone
300VA to 1,2kVA

Rackmount
300VA to 1,2kVA

 
Line Interactive

A Line Interactive UPS is typically an standby type unit that operates the same as an Off-Line unit but includes 'line conditioning' features. The advantage of this topology being a higher level of protection due to line conditioning while mains is present and isolated UPS power during mains out of limits or failures.

Typical Line-Interactive applications include: Personal computers and less critical file server applications.

Standalone
400VA to 3,2kVA

Rackmount
600VA to 2kVA

 On-Line (Plug type)

An On-line UPS is based on the double conversion (AC-DC-AC) principle. These units continuously provide main isolated, UPS generated, stable and clean voltage and frequency to the load circuits. The irregularity soiled mains supply is only used to power the UPS charger and never reaches the critical load circuits. These units offer the highest level of protection available.

Typical On-line applications include: Critical file server, communication and security equipment applications.

Standalone
500VA to 3kVA

Rackmount
500VA to 3kVA

On-Line (Single phase hard-wired)

These true On-line double conversion topology units were specifically designed to appropriately address the high availability of quality power requirements in today's business. Technological advancements, simplicity of global usability and value innovations have been delicately converged in this range to offer you the highest possible "availability-to-price" ratio to the fullest possible advantage for the users.

Key applications include: Information Technology, Data centres, Telecom facilities, Networks, Industrial facilities and Medical diagnostics.

On-Line (Three phase hard-wired)

Designed to support critical loads, our three phase dressings can fit in to most environments and will satisfy acceptable noise requirements. As static UPS systems, these units are and excellent choice for supplying unbalanced loads, and their performance for supplying non-linear loads are unsurpassed in the UPS industry. These units are capable of providing conditioned power instantly to the continually changing, even transient levels of power demand common with most networks and industrial operations.

Key applications include: Mainframe and super-mini computer systems; Telecommunication centres; Major LAN and WAN critical systems; Data centres, including RAID arrays; Test and laboratory installations; Industrial process and control operations; Medical equipment.

Standby Generators

Standby power generation has become an increasingly critical component in today's digitally sensitive business environment. Power failures are becoming more prevalent and the need for reliable extended standby power plays a vital role in ensuring business efficiency and profitability.

Our Standby and Prime configured generator sets are locally manufactured to suit the harsh African environment, utilizing only top of the range, high reliability components.

Generator sets mainly consist of an internal combustion fuel driven engine closely coupled with an electrical alternator, all mounted on a skid type base-frame that includes a bulk fuel tank, starter battery and electronic control panel.

Engines and alternators are provided by reputable manufacturers including: John Deere, Perkins, Mitsubishi, Leroy Somer, Marelli Motori and Sincro to name but a few.

Our range includes single and three phase units from 5kVA to 500kVA and is provided with optional accessories including: Electronic governors, weather and sound attenuated canopies, microprocessor driven auto-start main failure sense panels and set-mounted manual or electric fuel filler pumps.

Fire Suppression

Inergen is an environmentally green three dimensional fire suppression agent replacing Halon 1301. Critical facilities such as data processing rooms, telecommunications switching facilities, process control rooms, and others, require a non-water based extinguishing agent that:

* Is electrically nonconductive
* Is safe for use in human occupied facilities
* Would not damage sensitive electronic equipment
* Has zero ozone depletion, zero global warming, and zero atmospheric lifetime

Inergen is a blend of three naturally occurring gases: Nitrogen, Argon, and Carbon Dioxide.
It is stored in cylinders near the facility under protection.