COVID-19:  ACCESS CONTROL AND YOUR OFFICE

COVID-19: ACCESS CONTROL AND YOUR OFFICE

The impact of COVID-19 and the methods to fight it has impacted all our lives.  With many companies now back at work, the sanitation of communal office equipment has an even higher priority.  Nelspruit Fencing can provide “touch free” access control for your staff, so that access control in your office will not lead to any COVID-19 worries. 

For entrance into your office we will install a biometric reader, which works with access card or tokens as well.  Each staff member will be assigned a card or tag, so that you will also be able to obtain logs of when your staff enters the office. 

We usually recommend access control at companies to be run with fingerprint access, as it is more secure, but in the fight against COVID-19, it seems safer to rather request staff to carefully look after their access cards so that you can ensure there is no cross-contamination on your access control reader.  Furthermore, the reader we will install will be compatible with both fingerprints and access card or tags, so the option will be there to, at a later stage, programme your staff’s fingerprints on the access control reader. 

For staff (or anybody else) to leave your office, we will install a “No touch” exit button.  The clue is in the name:  You simply hold your hand in front of the exit button and the door will open.  Zero chance of cross-contamination, regardless of how many staff or visitors you have at your office. 

Nelspruit Fencing has all the necessary qualifications and expertise to assess your office or complex and make the necessary recommendations in line with your requirements, needs and requests.  Contact us from Nelspruit, White River, Barberton, Lydenburg or Hazyview for your free, no-obligation quote on +27 74 104 6028 / sales@nelspruitfencing.co.za, or visit our website at www.nelspruitfencing.co.za.

Nelspruit Fencing (Pty) Ltd – 4 May 2020

Common Electric Fence Mistakes

Common Electric Fence Mistakes

While doing repairs and generally driving around the Lowveld we have noted a few common mistakes made when electric fences are installed.  These electric fence mistakes are made by installers who are not properly trained, and which mistakes will impact negatively on your electric fence’s performance.  Finally, it is also these common electric fence mistakes which make people believe that electric fences do not work.  (Have a look at our “Do electric fences work?”  Articles, https://www.nelspruitfencing.co.za/electric-fences-does-it-really-work-part-1-of-2/, https://www.nelspruitfencing.co.za/electric-fences-does-it-really-work-part-2-of-2/.)

 

Here are the most common electric fence mistakes.

The bridges are built wrong, so that your electric fence is not really in series or parallel.

This is a bit of a technical issue, which we’ll be happy to explain to you on site, but basically it means instead of having a proper security fence or a proper gaming fence, you have neither. 

HT cables are installed in polyethlene pipes (poly pipes) instead of proper PVC conduit and pipes are not sealed.

These poly pipes are soft and flexible and do not provide proper protection for your HT Cable when you bury it.  The HT Cable is the cable which connects your energizer to your electric fence and as such must be properly protected.  Additionally, if the pipes protecting the HT cable are not sealed, when it rains water will accumulate in your pipes and this will cause your 8,000 volts cable to be submerged in water. Obviously, this is a terrible idea.    

There are not enough earth spikes for the length of the fence.

If you do not have enough earth spikes for your fence, your fence will not be properly earthed.  The electric shock of a fence which is not properly earthed will not be as painful as the shock from a properly earthed electric fence and therefore your deterrent of an electric fence is severely minimised.  There are several other technical issues, which again, we’ll be happy to share and explain on site, (i.e. induction, capacitance, etc.)

There are no lightning diverters.

This is a COC requirement and as it is not an expensive part of the fence, we always install it to try and minimise the risk to your energizer.  Your energizer is the most expensive equipment of your electric fence, so it is well worth doing what you can to try and protect it. 

In order to obtain a COC many fences (especially free-standing fences) require a barrier fence.

This is a source of great contention between installers, complexes/estates and the Electric Fence Regulators and needs an article on its own (which will be published in due course).  In the meantime, if you have any questions, we’ll be happy to answer them on site. 

There you go:  now you also know the basic mistakes which we see too often.  The customer, who has no technical knowledge is completely in the hands of his/her installer and we therefore urge you to ensure your hard-earned money is not spent on a fence that cannot do what you need it to and what you’ve paid for.

Contact us now for your free quote in Nelspruit, White River, Barberton, Lydenburg, Hazyview, Sabie and Witbank on 074 104 6028 / sales@nelspruitfencing.co.za / www.nelspruitfencing.co.za.

11 November 2019, Nelspruit Fencing (Pty) Ltd, Mbombela, Mpumalanga

Electric Fences:  Does it really work?  (Part 2 of 2)

Electric Fences: Does it really work? (Part 2 of 2)

Let’s pick-up where we left off in Part 1 of 2 (here is a link to the previous article: https://www.nelspruitfencing.co.za/electric-fences-does-it-really-work-part-1-of-2/) and again start with – Of Course electric fences work! Electric fences is a security measure to keep the bad guys out, or at least to provide you with plenty of warning (in the form of a 15 – 40 Watt siren going off) that somebody is trying to breach your perimeter security.

I dealt with the first 3 objections against electric fences and whether it works or not in my first article and now deal with the remaining 2:

1. Electric fences require too much maintenance; and
2. If the criminals really want to come in, you can’t stop them.

1. Electric fences require too much maintenance

I’m sure we’ve all seen those depressing electric fences with the fencing wire hanging loosely between brackets (some even broken completely with the ends hanging down the wall) and the brackets looking like it is on the verge of rusting and the fence just being a general eye sore to both the property and the neighbourhood.

The solution for this is very simple: ensure you use an installation company which does a professional installation and properly tensions your electric fence wire to ensure the wires do not sag. A professional installation company will use good quality products, so that your electric fence remains in good shape for years

The only care your electric fence does indeed require is to ensure it is kept clear of vegetation. Surely, this is not unlike mowing the lawn and generally keeping your garden neat? And in fact, yes, eventually a number of years after your installation (depending on the professionalism thereof) your electric fence will need to be re-tensioned with new springs and a few bobbins may need to be replaced here and there. This is something we do for a fraction of the cost of the actual fence and again any property has maintenance requirements from time to time. An electric fence will place undue responsibility on any property owner, which that owner does not already have. Especially if you use a professional installation company like Nelspruit Fencing.

2. If the criminals really want to come in, you can’t stop them

With as much respect as we can muster for this statement: yes, if someone is specifically targeting you and your property (almost like a hit!), you cannot really stop them. However, with this line of reasoning, why do you bother locking your front gate? We all do what we can to keep as safe as possible and to make it as difficult as possible for a criminal to enter your premises and if a criminal does manage it, to give you as much warning as possible to defend your loved ones and yourself. Electric fences are the best possible perimeter security with the best warning system – you just have to make sure it is installed properly and professionally.

At Nelspruit Fencing we take security serious and we’re happy to discuss all aspects of your electric fence and any other security system like perimeter beams with you. Contact us for your free quote in Nelspruit, White River, Barberton, Witbank, Lydenburg and Hazyview, 074 104 6028 / sales@nelspruitfencing.co.za / www.nelspruitfencing.co.za. Also, if you have any comments on this article, we’d love to hear from you and address any other objections or questions not dealt with in these articles. Stay safe!

12 September 2019 – Nelspruit Fencing (Pty) Ltd, Nelspruit, Mpumalanga

Electric Fences:  Does it really work (Part 1 of 2)

Electric Fences: Does it really work (Part 1 of 2)

Simply put – Of course electric fences work! Security is a major topic of conversation in South Africa and at some point, in a conversation the question comes up “Do Electric Fences work?”. Our question to that is why do you think Electric Fences do not work?
It seems the following are the most common objections:

1. You can through a blanket over the electric fence and climb over it;
2. The electric fence does not always give an alarm when it is supposed to;
3. An electric fence gives too many false alarms (especially when it rains);
4. Electric fences require too much maintenance;
5. If the criminals really want to come in, you can’t stop them (my personal favourite).

Let’s deal with these objections one by one.

1. Throwing a blanket over the electric fence and climbing over it
This is laughably impossible to do without triggering the alarm. The electric fence wire is tensioned with springs and cannot support any person’s weight on it. If you put a blanket over the electric fence and push on the electric fence to climb over it, one of 2 things will happen:

(a) You will either break the spring and wire, which will trigger the alarm; or
(b) The top 2 wires will touch, which will trigger the alarm.

Additionally, what sort of blanket, which will not break the fence, will a person use to insulate himself against 10,000 Volts of electricity?

2. The electric fence does not always give an alarm when it is supposed to
If your electric fence does not give an alarm when 2 of the wires touch or one of the fence wires is cut, it means either that your installation was not done properly or that something is wrong and you need to contact a professional to check your fence.

There are 2 tests your electric fence installer can do, to show that your fence works. Please have a look at one of our earlier articles, https://www.nelspruitfencing.co.za/cut-wire-and-earth-short-test/, discussing these tests.

3. Electric fences give too many false alarms, especially when it rains
Again, if this is the case with your electric fence, it means either that your installation was not done properly, or something is wrong, and you need a professional to check your fence.

Some times, animals like a small lizard can cause false alarms if it climbs up a bracket and shocks itself to death when it is half-way on the bracket and half-way on a live wire. Unfortunately, it may then be stuck on the electric fence and causes a short, which will lead to false alarms.

Conclusion
While this is a great topic for me to discuss, I am on a word limit. Therefore, objections number 4 and 5 will be addressed in a follow-up article, which we will publish next week. If you can think of any other objections, please either comment on this article or email us at sales@nelspruitfencing.co.za: we’ll be happy to address any more objections.

Lastly (for now) if you are experiencing objection numbers 2 and 3 above, or would like a free quotation on a new electric fence, please contact us on 074 104 6028 / www.nelspruitfencing.co.za. We provide free quotes in Nelspruit, White River, Barberton, Witbank and Lydenburg.

3 September 2019, Nelspruit Fencing, Mbombela, Mpumalanga
Security cameras – how do you know what you need?

Security cameras – how do you know what you need?

How do you know which security cameras to choose for your CCTV Surveillance System?  After all, there are many options to choose from.  Notably, one of the features to consider is the lens performance criteria of your security camera.  The lens size is directly linked to the reason you are installing a CCTV Surveillance System.

To clarify, the reason for your security cameras is for either, Detection, Observation, Recognition or Identification of the persons your camera can see.  Below is what each purpose means in terms of security cameras. 

  • Detection:  Meaning you will be able to detect movement in the area the camera is capturing. 
  • Observation:  Meaning you will be able to observe how people, animals or other objects are moving around in the area the camera is capturing.  This camera lens size is usually used in public parking spaces.    
  • Recognition:  Meaning you will be able to recognise a person you already know when you see him/her in the area the camera is capturing.    
  • Identification:  Meaning you will be able to identify strangers and read number plates on cars. 

It is very difficult to set a permanent rule saying an x mm lens automatically means you can identify up to y metres.  Due to the fact that there are other factors which impact on the distance of detail your security camera can see.  For example, the angle of installation will impact the distance of detail.  Also, a big lens which can identify at a large distance, may not be able to focus on something right in front of it.   Therefore, it is not enough to simply say you want a big lens. 

Obviously, the bigger your lens size, the more expensive your security camera.  Consequently, you need a professional company to provide you not only with the various options, but also to take the time to properly assess your site.  Nelspruit Fencing (Pty) Ltd will make recommendations to you so you, as the Customer and home or business owner, can make an informed decision regarding your needs.

Contact us for your free site assessment and quote in Nelspruit, White River, Barberton, Lydenburg, Witbank and Hazyview at 013 742 0004 / www.nelspruitfencing.co.za / sales@nelspruitfencing.co.za.

April 2019, Nelspruit, Mpumalanga

Managing your CCTV Surveillance System

Managing your CCTV Surveillance System

CCTV Surveillance Systems are currently playing such a big role in the security industry, as a result, we are following up last week’s article with another one about CCTV.  You may wonder:  what is the point of having a CCTV Surveillance System, if you do not have/want a security guard who can constantly monitor your System?  The good news is that CCTV Surveillance Systems have evolved so much that it is no longer necessary to employ a security guard to monitor the system 24/7.  These days the CCTV Surveillance System does the monitoring for you and Nelspruit Fencing will make sure it is set-up in line with your needs.

First of all, it is not necessary to connect your cameras to a monitor designated only for use for the CCTV Surveillance System.  This is due to the fact that the cameras’ feeds in your CCTV Surveillance System can be viewed on your smartphone.  This is achieved by using the Smartphone App which all our CCTV Surveillance Systems have.  Consequently, all you need is Wi-fi at the premises where the cameras will be installed.

The CCTV Surveillance System will be set-up to record when it detects motion.  As a result, you will be able to view past recordings whenever you need to.  Furthermore, your Smartphone App can be set-up to send you notifications in the event it:

  1. Detects motion;
  2. Loses power; or
  3. Is being tampered with.

Due to these few basic steps a CCTV Surveillance System can be useful at any premise.  Of course, in addition to the notifications above, there are still numerous features and functions which you can choose from.  At Nelspruit Fencing will advice you of any additional features or settings which would be useful at your premises.

Contact us now for your free site assessment and quote in Nelspruit, White River, Barberton, Lydenburg and Hazyview – 013 742 0004 / sales@nelspruitfencing.co.za / www.nelspruitfencing.co.za.

April 2019, Nelspruit Fencing (Pty) Ltd, Mbombela, Mpumalanga