Electricians' Guide: Cable Rating Factors

There's all sorts of things that threaten our cables but the main one is heat. This is ironic as the cable will generate heat as current flows through it. However there are external factors that will affect how this heat is dissipated, this in turn will affect the size of cable you need to install.

Detailed explanations of what can affect your cable in this way, how intense that impact will be and how it will affect your cable selection are covered in this in-depth but simple explanation.

Take a dive with Joe into the exciting world of electrical design in this series of videos that will help you if you're just starting out in this area at college or work. Even if you've been an electrician for years, there's something for everyone in this series of videos.

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For more information on the @ElectricHeatingCo electric boiler featured in the video click the link here: 👉 https://www.electric-heatingcompany.c...

🕐 Chapters 🕕
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00:00 What are rating factors for an electrical circuit?
00:06 Free Electrical Design Training: 👉 https://training.efixx.co.uk/course/i...
00:23 Previous video, Protective Device: 👉    • Electricians' Guide: Circuit Protecti...  
00:42 Do we need overload protection?
01:20 How much current does the cable need to carry?
01:47 Things that could reduce how much current the cable needs to carry
02:08 Rating Factor v Correction Factor
02:34 A scary formula explained
02:52 What is tabulated current carrying capacity?
03:10 Ambient Temperature
04:10 How a rating factor affects cable size
06:11 Grouping Factor
07:13 Installation Reference Methods
08:27 Combining Rating Factors
10:08 Thermal Insulation Factor
11:30 Protective Device Factor
12:32 Next video in the series, Selecting the right size cable: 👉    • Electricians' Guide: Circuit Protecti...  
12:35 Free CPD: 👉 https://training.efixx.co.uk/course/i...
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❌ This content on this channel is for electrical professionals.❌ ==================================
📹 Presented by
Joe Robinson - Technical Editor
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#electricaldesign #electricians #electricalinstallation