tag:blogger.com,1999:blog-74524909554140677422025-11-03T22:11:07.621-08:00Electrical basics for beginners | Understanding electrical installations and wiring through pictures | The concepts behind electrical room design and substationsUnknownnoreply@blogger.comBlogger75125tag:blogger.com,1999:blog-7452490955414067742.post-2789839558821361872014-03-08T04:25:00.002-08:002023-06-20T03:59:43.267-07:00

Continuing the tradition of sharing engineering knowledge through pictures, today I am sharing with you some pictures of cable bridges for electrical cables. Picture 1 – An existing electric cable bridge (Click on the picture to enlarge it) ================= RELATED ARTICLES: Underground street light cables |  Underground electrical manhole | Compound lighting

Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7452490955414067742.post-34743858725153447422014-02-12T12:01:00.001-08:002023-06-20T04:00:48.375-07:00

Only one picture today: a photograph of a high voltage transmission line across the Nile River in Egypt. Hello everyone. It has been quite a while since my last post. In fact I only sent just a few posts for the whole of last year,  2013. For that I owe some apologies to loyal followers of this blog. I know that a considerable number of young engineers find many pictures here useful

Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7452490955414067742.post-158671914462945612013-06-08T03:41:00.001-07:002023-06-20T04:01:10.426-07:00

Below is a picture of a somewhat "improvised" installation of underfloor uPVC trunking within the structural rebars of a floor slab in a workshop building under construction. Picture 1: uPVC trunking installed below structural rebars ===== RELATED ARTICLES: Underfloor trunking pictures | MATV trunking riser |   Conduit to trunking connections |  Cable ladder pictures | Electrical

Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7452490955414067742.post-27161442076724158212013-05-17T08:28:00.001-07:002023-06-20T04:01:28.198-07:00

Just a few pictures today … on exothermic welding joint of earthing copper cables. Picture 1: Cable-and-mould set-up for a cable-to-cable exothermic joint (Click on the picture to enlarge it.) ================= RELATED ARTICLES: Electrical Grounding Electrode Pictures | Electrical grounding  | Substation main earth bar pictures  | Switchboard earthing pictures | Lightning Earth

Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7452490955414067742.post-82550811121146939342013-01-22T17:12:00.002-08:002023-06-20T04:01:45.992-07:00

Below you can find two pictures showing fire riser rooms at a multi-storey building. Picture 1 - Fire Riser Room ================= RELATED ARTICLES: Building’s electrical rooms layout | Substation rooms layout diagram |  1600 kVA Transformer Pictures | Cable ladder pictures  | Electrical installation pictures |================= Here you

Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7452490955414067742.post-54335050960940091592013-01-21T19:14:00.002-08:002023-06-20T04:02:04.272-07:00

I do not know how many readers will like this picture, but I like it. Picture 1 - A nice picture ================ RELATED ARTICLES: Compound Lighting Installation Pictures |  Electric Cable Drum Pictures | Underground street light cables | Compound lighting storage yard | Feeder pillar single line diagram | Bollard light pictures |

Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7452490955414067742.post-46263532202502698662012-02-11T19:09:00.001-08:002023-06-20T04:02:24.371-07:00

Backhoe, the multi-purpose, versatile machine can be found anywhere there is a construction work under way. It is also the most popular type of machines for excavating electric cable trenches. Thus this machine deserves a post of its own. Picture 01 – A backhoe being used to handle an electric cable drum (Click on the picture to enlarge it) ================= RELATED ARTICLES: Electric Cable

Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7452490955414067742.post-3667763788765346952012-02-11T17:20:00.001-08:002023-06-20T04:02:42.680-07:00

This post gives you a few pictures showing the process of installing underground street light cables. Picture 01 – A contractor’s site supervisor giving instructions during backfilling of an underground cable trench (Click on the picture to enlarge it) ================= RELATED ARTICLES: Electric Cable Drum Pictures |  Underground electrical manhole | Compound lighting storage

Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7452490955414067742.post-11472019508192813292012-01-30T01:24:00.001-08:002023-06-20T04:03:07.135-07:00

Below is a picture of an MATV trunking riser. I have also shown a closer view of how the trunking is firmly fixed to the ELV riser reinforced concrete wall. Picture 1 - MATV trunking riser (Click on the image to enlarge it) =================  RELATED ARTICLES: Underfloor trunking below structural rebars | MATV antenna bracket pictures |  Lighting flexible conduits |

Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7452490955414067742.post-55320378222128717662012-01-27T22:18:00.000-08:002014-03-09T21:40:54.634-07:00

Lift car lighting inside a 21-storey high rise office building. Picture 1 - Lift car fluorescent light inside a passenger lift under construction xxxxxxxxx RELATED ARTICLES: A simple electrical installation | Electrical socket extension unit  | Bare fluorescent light pictures  | Recessed down lights installation  | Bollard light pictures  | Light switch installation

Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7452490955414067742.post-88306524332254743672012-01-24T21:52:00.001-08:002023-06-20T04:03:54.025-07:00

Why do we need flexible conduits for the wiring to lighting fixtures? Picture 1 – A lighting flexible conduit above a false ceiling (Click on the image to enlarge it) xxxxxxxxx RELATED ARTICLES:  MATV trunking riser  |  A simple electrical installation | Electrical socket extension unit  | 1- Phase ELCB connection pictures  | Bare fluorescent light pictures  |

Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7452490955414067742.post-27834998425038835862012-01-22T19:38:00.001-08:002023-06-20T04:04:16.134-07:00

Many people consider exposed and metal-clad electrical socket outlets as one of those unnecessary objectionable sights in a building and practically put them in almost the same category as rain water down pipes and sanitary plumbing. If we have to have them, they need to be hidden away. Photo 1 – Metal-clad electrical outlets ++++++++++++ RELATED ARTICLES: Weatherproof 13A switched

Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7452490955414067742.post-58486696989695738082011-11-22T17:35:00.001-08:002023-06-20T04:04:33.400-07:00

What you see below are two units of weatherproof 13A switched socket outlets. Picture 1 – Weatherproof 13A switched socket outlets ==== RELATED ARTICLES: Electrical socket extension unit |  Feeder pillar single line diagram | 1- Phase ELCB connection pictures | Metal-clad socket outlets |  Electrical installation pictures ==== Weatherproof 13A outlets are very useful

Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7452490955414067742.post-12776503003309519852011-11-12T09:39:00.001-08:002023-06-20T04:04:49.029-07:00

I uploaded the following few pictures of conduit color coding of a CCTV (closed circuit surveillance cameras) system as a extension to an earlier post on electrical services color coding. You can click on one of the related links below to see the earlier post.   Picture 1 – CCTV conduits color code ================= RELATED ARTICLES:  Electrical Services Color Codes ==============

Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7452490955414067742.post-36979754143215601712011-10-16T09:39:00.001-07:002023-06-20T04:05:08.339-07:00

Below is the layout of the electrical rooms for a post that I sent earlier (See here:  Cable ladder pictures). Diagram 1 – Overall layout of the substation electrical rooms for a new office building ================= RELATED ARTICLES: Building’s electrical room layouts | Electrical busduct installation pictures |  Electrical installation pictures ================= The earlier

Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7452490955414067742.post-7606600886760434132011-07-21T03:32:00.001-07:002023-06-20T04:05:23.288-07:00

I attach here a few pictures showing the connections between electrical conduits and trunking. Some few weeks ago a reader left a message on one of my blogs asking how to connect a branch conduit to a steel trunking. So these pictures should be self-explanatory enough how to make the connection. Picture 1 – Electrical and mechanical services above the ceiling of an office building =========

Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7452490955414067742.post-90501345064304746592011-07-19T10:34:00.001-07:002023-06-20T04:05:37.310-07:00

Below are a few pictures of one of the most important components of a building’s cable support system: cable ladders. Picture 1 – Cable ladders at Consumer’s High Voltage Switchgears ================= RELATED ARTICLES: Underfloor trunking below structural rebars |  MATV trunking riser |    Substation rooms layout diagram |  Conduit to trunking connections | 

Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7452490955414067742.post-63808686520683795162011-07-18T07:51:00.001-07:002023-06-20T04:05:51.654-07:00

I believe I have uploaded to this blog quite a number of pictures on electrical grounding. However, there is one work of the grounding system that I have always wanted to show the readers especially true beginners (i.e. students and young engineers). That is the process of exothermic welding. Picture 1 – 25mm x 3mm grounding copper tape permanently bonded to ground using exothermic welding

Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7452490955414067742.post-42212851715228625302011-07-15T10:08:00.001-07:002023-06-20T04:06:17.853-07:00

I took a few pictures of the storage area for compound lighting parts at a project site recently. With these pictures I think I have explained the whole system of compound lighting in this blog. So this post wraps up the topic of compound lighting. Of course, if I find more pictures that I think readers would be interested in, I will attach a link to this post also. Picture 1 – 10 meter light

Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7452490955414067742.post-15855538368168165302011-07-06T00:15:00.001-07:002023-06-20T04:06:32.969-07:00

You can see below a few pictures of a 1600 kVA electrical power transformer being unloaded from a transport truck. Picture 1 – 1600 kVA, 11kV/415V electrical power transformer being unloaded I will not be writing much today. I have not been sending posts to this blog for a while because my new project was taking much more of my time than I originally expected. It not yet finished even now.

Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7452490955414067742.post-42920934524176510032011-03-09T06:26:00.001-08:002023-06-20T04:06:46.922-07:00

The following set of pictures gives some examples on the identification of the different electrical services inside a building. Picture 1 – Example color codes for a few electrical services =========  RELATED ARTICLES: MATV trunking riser  |   Lighting flexible conduits |  CCTV conduits color coding | Cable ladder pictures |  Electrical conduits

Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7452490955414067742.post-35066245174026948232011-03-06T06:27:00.001-08:002023-06-20T04:07:08.136-07:00

The few pictures that I show in this post is a demonstration of what can happen when proper coordination drawings are not produced prior to the commencement of the mechanical and electrical services installation in a multi-storey building. Picture 1 – Improvised installation of electrical trunking, air-conditioning ducts, fire protection pipe work and a floor beam ===== RELATED ARTICLES: =

Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7452490955414067742.post-11959990157321984162010-08-18T09:19:00.001-07:002023-06-20T04:07:22.352-07:00

The picture below shows an electrical manhole intended for underground installation being unloaded from the transport truck. Picture 1 – The electrical manhole being unloaded ================= RELATED ARTICLES: Electric Cable Drum Pictures | Underground street light cables |  Compound Lighting Installation Pictures | Feeder pillar single line diagram | Bollard light pictures | Feeder

Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7452490955414067742.post-67049784750395582010-07-29T06:32:00.001-07:002023-06-20T04:07:50.728-07:00

I am sending up the following three images on compound lighting pole foundation details to fulfill a request by a friend earlier today. Image 1 – The overall diagram of a five-meter lighting pole ================  RELATED ARTICLES:  Electric Cable Drum Pictures | Underground street light cables |  Compound lighting storage yard | Feeder pillar single line diagram | Bollard

Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7452490955414067742.post-37802767048504206922010-07-23T18:55:00.001-07:002023-06-20T04:08:06.039-07:00

What will be the problem if an electrical contractor fabricates the electrical trunking at the construction site? Why do I make an issue of this matter? Picture 1 – Electrical trunking already installed at a new building under construction =========  RELATED ARTICLES: Underfloor trunking below structural rebars | MATV trunking riser |   Conduit to trunking connections | &

Unknownnoreply@blogger.com0