How to Access the Wiring in Your Home

First of all, think about any obvious signs that all is not well:

  • If fuses blow regularly, is it always the same circuit that’s involved or always the same appliance? If a circuit seems to be at fault, it should be looked into without delay there could be a leakage through poor insulation, which carries the risk of fire
  • If there is any sign of overheating -warm plugs or switches, charred sockets, suspicious smells – the most likely cause is a poor connection; the screw terminals (or, with 13-amp plugs, the fuseholder) of a plug are more likely to be the source of trouble than the fixed wiring connections. Next, how fully does the system meet the needs of the household?

  • There should be no need to use adaptors to provide enough sockets because they stick out some distance from the wall, adaptors increase the danger of some damage being done to the plug or socket contacts by a tug on the flex or a blow from a boot
  • There should not be long flexes trailing across the floor apart from the risk of tripping over them, the flex conductors can be damaged by being squashed and are a fire risk.

It is worth trying to determine the type of insulation used in the wiring, and its age: pre-war wiring will have been done with rubber-insulated or lead-sheathed cable, and the rubber will probably have perished by now particularly where it has been hot (in ceiling roses, for example). More recent rubber insulation (it was used until the early fifties) may have more life left in it but not much.

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If you’re planning to replace the old electrical system in your home, you may consider an underground electric installation to ensure your wiring is better protected.

The differences between rubber and plastic are quite pronounced – rubber is dull and matt in appearance, slightly elastic in fee! (unless it is perished, when it becomes crumbly); plastic is more shiny and bright. The sheath around a rubber-insulated cable will probably be of rubber itself, oval in cross-section and black in colour; plastic-insulated cable will usually have a flat plastic sheath, grey or white.

The type of sockets used in the house can give only a rough guide to the age of the installation although post-war wiring will normally have rectangular-pin sock­ets and pre-war systems round-pin ones, rectangular-pin sockets may have been used to replace round-pin ones without the wiring being updated.

Look out for signs that the wiring was installed or has been extended without care; if the cable has not been laid and secured neatly, there is some cause for worry about whether connections have been made properly.

Deciding what to do

Any wiring system that still has old rub­ber or lead insulation or sheathing is likely to be near the end of its useful life (or past it), and the only sensible course of action is to replace it with modern PVC wiring.

If you have an inadequate PVC wiring system, you will have to make a judge­ment about whether it is possible to extend certain circuits or whether you would do better to start again from scratch. The two things you want to avoid are having lots of wiring hanging about under the floorboards which does not lead anywhere and having sockets in any one room (or even on any floor) which are connected to different circuits both these increase the dangers for any future work.

Getting help

It can be tempting to attempt installing power points, fixing electrical faults and electric appliances by yourself. However, doing so will be setting you up for future more significant electrical problems. It is advisable to leave such tasks to a qualified 24/7 emergency electrician. Getting a competent electrician like the ones at electrician richmond services gives you peace of mind knowing that your safety is guaranteed.

If you are in doubt about the state of the existing wiring, it makes sense to get help from an emergency electrician, like the ones from an emergency electrical services in New Jersey, in accessing it. Electricians and Electricity Boards can provide various sorts of help, from a quick look around to a detailed set of electrical measurements and thorough inspections. Choose an electrician on the roll of the NICEIC (National Inspection Council for Electri­cal Installation Contracting). From the standard report form used, it is not always easy to tell what needs to be done to put things right. You may have to ask the contractor. Visit to see if they service your area.

The total load

If you decide to make any changes which add to the total current which the house­hold can draw from the supply, you should tell the Electricity Board so they can be sure that their equipment the service cable, the service fuse and the meter – can take the new total current. Your own main switch must also be large enough.

This typical house has six circuits. From the lighting circuit and 6 upstairs lighting circuit, consumer unit, these are 1 immersion heater. The total number of sockets (13. including circuit. 2 downstairs ring circuit. 3 cooker one by the cooker) is totally inadequate circuit. 4 upstairs ring circuit. 5 downstairs

Filed Under: Home & Maintenance


About the Author: Jason Prickett loves to write about home maintenance and stuff you can do yourself instead of hiring any professional. His step by step guides will assist you in completing your home maintenance tasks.

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