Technical and Training Archives

Overcurrent and short-circuit current: how the requirements of BS 7671 are applied

|Date: 19 March, 2025

Overcurrent and short-circuit current: how the requirements of BS 7671 are applied

The aim of this article from the experts at NICEIC is to look at overcurrent; and, in particular, short-c ...

The aim of this article from the experts at NICEIC is to look at overcurrent; and, in particular, short-circuit current, and how the requirements of BS 7671 are applied. The adiabatic equation given i ...

19 March, 2025
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How to install external lighting to avoid light pollution

|Date: 14 March, 2025

How to install external lighting to avoid light pollution

Mitchell Waite, Product Manager at Collingwood Lighting, looks at how to install external lighting to avo ...

Mitchell Waite, Product Manager at Collingwood Lighting, looks at how to install external lighting to avoid light pollution and meet many councils’ DarkSky policies. While we need good outdoor lightin ...

14 March, 2025
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Codebreakers #92

|Date: 20 February, 2025

Codebreakers #92

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 ...

20 February, 2025
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Some essential pointers when working with DC circuits

|Date: 19 February, 2025

Some essential pointers when working with DC circuits

Pete ‘Monty’ Monfort, Director at Arena Training and Monty Electrics, offers some useful pointers when wo ...

Pete ‘Monty’ Monfort, Director at Arena Training and Monty Electrics, offers some useful pointers when working with DC circuits. The majority of electricians, whilst familiar with the principles of di ...

19 February, 2025
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How to record the details of protective devices on the ‘Schedule of circuit details’

|Date: 12 February, 2025

How to record the details of protective devices on the ‘Schedule of circuit details’

A number of protective devices are now available which perform more than one function, such as Residual C ...

A number of protective devices are now available which perform more than one function, such as Residual Current operated Circuit-Breakers with integral Overcurrent protection (RCBO), and combination R ...

12 February, 2025
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Codebreakers #91

|Date: 11 February, 2025

Codebreakers #91

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 ...

11 February, 2025
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How to fix PV arrays to on-roof solar photovoltaics (PV) systems

|Date: 5 February, 2025

How to fix PV arrays to on-roof solar photovoltaics (PV) systems

Steve Humphreys, Technical Commercial Manager at NAPIT, provides a guide on how to fix PV arrays to on-ro ...

Steve Humphreys, Technical Commercial Manager at NAPIT, provides a guide on how to fix PV arrays to on-roof solar photovoltaics systems. In this article, we will look at a simplified wind uplift calcu ...

5 February, 2025
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Codebreakers #90

|Date: 28 January, 2025

Codebreakers #90

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 January, 2025
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How can earth electrode resistance be improved as part of a planned approach to installation?

|Date: 22 January, 2025

How can earth electrode resistance be improved as part of a planned approach to installation?

It can be difficult for an electrical contractor to determine whether a single electrode will be sufficie ...

It can be difficult for an electrical contractor to determine whether a single electrode will be sufficient to be able to gain an adequate value of resistance prior to its installation and test. Here, ...

22 January, 2025
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The practice of unfused spurs off a ring final circuit

|Date: 15 January, 2025

The practice of unfused spurs off a ring final circuit

BS 7671 permits an unfused spur (or cable branch) from a 30 A or 32 A ring final circuit supplying access ...

BS 7671 permits an unfused spur (or cable branch) from a 30 A or 32 A ring final circuit supplying accessories conforming to the relevant part(s) of the BS 1363 series to be wired with thermoplastic ( ...

15 January, 2025
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