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Rewiring of Domestic and Industrial Premises.

Often when inspecting a premises to get to a standard that will conform to SANS10142-1 and subsequent issuing of a Certificate of Compliance, the old premises will have to be rewired and a new Distribution Board, Sub Distribution Boards installed. The Certificate of Compliance will then be issued on the New Installation. This is not always the case, as only some circuits will be deemed necessary to be rewired.

RSA Bardo Electrical Systems works closely with Interior Decorators, Architects and the customer. We can often show the customer a range of different wiring accessories and refer them to different lighting companys.

Before the mid 1980's metal conduit was used in domestic installations, and the metal of the conduit was used as the earth. With time and corrosion many earth connections have been compromised, and new circuits which includes a earth wired will need to be installed.

Earlier installations even lack Earth Leakage Protection, have fuses, Cloth coated wire, cleat wiring, and even pyrotenax wiring.

Pyrotenax is a mineral insulated (MI) 2-hour fire-rated wiring cable that was used for critical and essential circuit protection. It consisted of solid copper conductors in a continuous copper sheath, with magnesium powder insulation providing 600V class insulation.

Unlike conventional cables, Pyrotenax wiring cable required no conduit protection. MI cable was ideal for Fire-Rated applications, such as fire alarm wiring, because only non-organic materials are used in its construction it is not subject to aging as a result of exposure to temperature or deterioration of insulation with time. Pyrotenax now must be removed.

Armoured Cables were installed, using only the armouring as the earth conductor, this has to be changed and a new earth conductor will need to be installed. An earth conductor can be half the size of the live conductor. For example if the main cable is 16mm2 then a 10mm earth cable can be used. The earthing resistance must be tested and be under 0.2 Ohms.

Electrical products have advanced, become safer, easier to use and more cost effective.

A new electrical deign will have to be done, taking into account the number of new circuits, especially for the switch sockets (plugs).

Surface conduit, pvc wireways; might be a quicker and cost effective way, as chasing conduits into the plaster is a more labour intensive option. With new wireless switching products, the instillation of light switches not necessarily need to be a major installation task.

New distribution board will have to be sized and a decision to ether samite or DIN circuit breakers to be used.

It would be a great chance to install led lighting and work on some new lighting designs, and colour and design for the new light switches and switch sockets (plugs).

LED light bulbs can help you transform any living space with beautiful, warm white light. This guide shows you how LED light bulbs can offer you unlimited lighting possibilities. With LED lighting bulbs, you can save up to 90% energy and money.

When rewiring ceilings can be redesigned and bulkheads added, so LED lighting, as well as undercounter lighting added.

Contact RSA Bardo Electrical Systems for any rewiring, renovations that you will be undertaking.

House Rewiring
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