Technical Archives

Ventilation system design: How to design and specify MVHR systems | National Ventilation

|Date: 16 July, 2024

Ventilation system design: How to design and specify MVHR systems | National Ventilation

Rhys Jones, National Technical Manager at National Ventilation, explains how ventilation system design ca ...

Rhys Jones, National Technical Manager at National Ventilation, explains how ventilation system design can be made simple for electricians who are keen to install MVHR but aren’t sure how to design an ...

16 July, 2024
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When is it necessary to use fused test leads? | NICEIC

|Date: 10 July, 2024

When is it necessary to use fused test leads? | NICEIC

Most electricians might assume that the use of fuse-protected leads is unnecessary when carrying out ‘dea ...

Most electricians might assume that the use of fuse-protected leads is unnecessary when carrying out ‘dead’ testing on circuits proven to be de-energised by a recognised safe isolation procedure. Equa ...

10 July, 2024
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Codebreakers #78

|Date: 28 June, 2024

Codebreakers #78

Need help with cracking those EICR codes? The technical team at NAPIT, with the help of the 18th Edition ...

Need help with cracking those EICR codes? The technical team at NAPIT, with the help of the 18th Edition Codebreakers publication, answer your latest coding queries. Click on the photos for a closer l ...

28 June, 2024
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Test sequence for periodic inspection | NICEIC

|Date: 28 June, 2024

Test sequence for periodic inspection | NICEIC

BS 7671 contains clear requirements in respect of the order in which many tests have to be carried out du ...

BS 7671 contains clear requirements in respect of the order in which many tests have to be carried out during initial verification. However, no such information is given in respect of testing carried ...

28 June, 2024
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Selecting a suitable wiring system for an electrical installation: what environmental conditions need to be considered? | Scolmore Group

|Date: 27 June, 2024

Selecting a suitable wiring system for an electrical installation: what environmental conditions need to be considered? | Scolmore Group

Jake Green, Head of Technical Engagement at Scolmore Group, gives a brief overview of the general range o ...

Jake Green, Head of Technical Engagement at Scolmore Group, gives a brief overview of the general range of conditions detailed in Section 522 of BS 7671, which an installer will have to consider as th ...

27 June, 2024
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How to determine voltage drop limits within electrical installations | NAPIT

|Date: 26 June, 2024

How to determine voltage drop limits within electrical installations | NAPIT

Frank Bertie, Chief Technical Officer at NAPIT, explains how to establish voltage drop limits within elec ...

Frank Bertie, Chief Technical Officer at NAPIT, explains how to establish voltage drop limits within electrical installations. BS 7671 and requirements for voltage drop The topic of voltage drop is co ...

26 June, 2024
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Protective Earthing Systems: What’s the difference between PME and PNB? | ECA

|Date: 24 June, 2024

Protective Earthing Systems: What’s the difference between PME and PNB? | ECA

Darren Crannis, ECA Technical Manager, looks at protective earthing systems and unravels the difference b ...

Darren Crannis, ECA Technical Manager, looks at protective earthing systems and unravels the difference between PME and PNB. The distinctions between TN-C-S earthing variants, Protective Multiple Eart ...

24 June, 2024
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Determining selectivity for circuit-breakers conforming to BS EN 60898

|Date: 21 June, 2024

Determining selectivity for circuit-breakers conforming to BS EN 60898

Jake Green, Head of Technical Engagement at Scolmore Group, briefly considers one aspect of selectivity a ...

Jake Green, Head of Technical Engagement at Scolmore Group, briefly considers one aspect of selectivity as it relates to overcurrent protective devices (OCPD), and in particular circuit-breakers confo ...

21 June, 2024
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Codebreakers #77

|Date: 19 June, 2024

Codebreakers #77

Need help with cracking those EICR codes? The technical team at NAPIT, with the help of the 18th Edition ...

Need help with cracking those EICR codes? The technical team at NAPIT, with the help of the 18th Edition Codebreakers publication, answer your latest coding queries. Click on the photos for a closer l ...

19 June, 2024
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18th Edition RCD Requirements for Heat Pump Installations | Doepke

|Date: 14 June, 2024

18th Edition RCD Requirements for Heat Pump Installations | Doepke

Are you involved directly with heat pump installations or expecting to deal with an existing installation ...

Are you involved directly with heat pump installations or expecting to deal with an existing installation? A better understanding of RCD requirements associated with HPs can save time and money for yo ...

14 June, 2024
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