Technical Archives

Circuit-Breaker Standards – What’s The Difference?

|Date: 16 July, 2019

Circuit-Breaker Standards – What’s The Difference?

NAPIT’s Don Holmes looks at the two different circuit-breaker standards, and provides clarification on th ...

NAPIT’s Don Holmes looks at the two different circuit-breaker standards, and provides clarification on the differences between them. Two standards that specify requirements for ...

16 July, 2019
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Installation Of Electric Heating Cables

|Date: 11 July, 2019

Installation Of Electric Heating Cables

This article from the NICEIC looks at the requirements and considerations for a contractor when installin ...

This article from the NICEIC looks at the requirements and considerations for a contractor when installing electric heating cables and systems within walls, ﬂoors and ceilings located within domestic ...

11 July, 2019
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Common Query: Low Level Dimming Issues

|Date: 9 July, 2019

Common Query: Low Level Dimming Issues

A common question that contractors ask when it comes to LED dimming controls is: ‘why is dimming at low l ...

A common question that contractors ask when it comes to LED dimming controls is: ‘why is dimming at low levels causing me more issues than large loads?’ Cue Zano’s technical support team for the answe ...

9 July, 2019
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NAPIT Codebreakers #5

|Date: 19 June, 2019

NAPIT Codebreakers #5

Need help with cracking those EICR codes? The technical team at NAPIT, with the help of the brand new 18t ...

Need help with cracking those EICR codes? The technical team at NAPIT, with the help of the brand new 18th Edition Codebreakers publication, answer your latest coding queries. Danny Harmsworth: Here w ...

19 June, 2019
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Co-Ordination between Conductors and Overload Protective Devices

|Date: 12 June, 2019

Co-Ordination between Conductors and Overload Protective Devices

The team at Elecsa offer their technical support regarding the co-ordination between the conductors of a ...

The team at Elecsa offer their technical support regarding the co-ordination between the conductors of a circuit and an overload protective device. At first sight, many electricians may find the requi ...

12 June, 2019
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Made2Measure: How To Measure Earth Leakage Currents

|Date: 7 June, 2019

Made2Measure: How To Measure Earth Leakage Currents

Q: I’ve just taken my City & Guilds 18th Edition exam and I noticed that the section on unwanted trip ...

Q: I’ve just taken my City & Guilds 18th Edition exam and I noticed that the section on unwanted tripping of RCDs (531.3.2) says that I’ll sometimes need to measure earth leakage currents. How do ...

7 June, 2019
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Surge Protection: As Easy As 1,2,3?

|Date: 5 June, 2019

Surge Protection: As Easy As 1,2,3?

Gary Parker, Senior Technical Support Engineer at ECA, runs through the major changes to surge protection ...

Gary Parker, Senior Technical Support Engineer at ECA, runs through the major changes to surge protection requirements in the 18th Edition. Surge protection devices (SPDs) are used in electrical insta ...

5 June, 2019
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Earth Electrode Testing

|Date: 29 May, 2019

Earth Electrode Testing

The NICEIC offer their technical support regarding the necessary earthing arrangement to comply with the ...

The NICEIC offer their technical support regarding the necessary earthing arrangement to comply with the requirements of BS 7671. Where an earth electrode provides the means of earthing for an install ...

29 May, 2019
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Calculating Voltage Drop with NICEIC

|Date: 27 May, 2019

Calculating Voltage Drop with NICEIC

Section 525 of BS 7671 requires the voltage drop in the circuits of an installation to be limited so that ...

Section 525 of BS 7671 requires the voltage drop in the circuits of an installation to be limited so that the safe and satisfactory operation of current-using equipment is not impaired. To achieve thi ...

27 May, 2019
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Wiring Timber-Frame Buildings

|Date: 24 May, 2019

Wiring Timber-Frame Buildings

NAPIT’s Bill Allan returns this month with more essential advice for electricians. Timber-frame buildings ...

NAPIT’s Bill Allan returns this month with more essential advice for electricians. Timber-frame buildings are now seen as a mainstream construction method in the UK for dwellings, including extensions ...

24 May, 2019
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