IET Guidance Note 5: Protection Against Electric Shock (BS 7671:2018+A4:2026)

SKU: IETGN59TH

Shock protection guidance aligned with BS 7671:2018+A4:2026
Updated for PoE, EFLI limits and site-applied insulation checks
Practical reference for design, install and inspection teams

More Info

Members earn 38 reward points

Use reward points to get money off future purchases.

Please note: Customers must be signed into their account to be elegible. Find out more about reward points here.

Never Beaten On Price

Found this product cheaper & in stock somewhere else? Give us the details and we'll endeavour to match the price.

To price match, contact us online or call 0113 248 9966.

FREE Delivery Available

We offer FREE standard delivery on all orders over £249, with a range of next-day options also available on many items.

Find out more on our delivery information page.

60 Day Returns Guarantee

We want our customers to be fully satisfied with the goods they purchase from us, offering returns for up to 60 days.

Find out more about our refunds policy here.

Need Some Help From Our Experts?

We're always happy to offer help, information & advice to find the right instrument for you, so please get in touch.

To speak to our sales team, call us on 0113 248 9966, use our Live Chat service or contact us online.

In Stock - Available Next Day

Members earn 38 reward points

Use reward points to get money off future purchases.

Please note: Customers must be signed into their account to be elegible. Find out more about reward points here.

Never Beaten On Price

Found this product cheaper & in stock somewhere else? Give us the details and we'll endeavour to match the price.

To price match, contact us online or call 0113 248 9966.

FREE Delivery Available

We offer FREE standard delivery on all orders over £249, with a range of next-day options also available on many items.

Find out more on our delivery information page.

60 Day Returns Guarantee

We want our customers to be fully satisfied with the goods they purchase from us, offering returns for up to 60 days.

Find out more about our refunds policy here.

Need Some Help From Our Experts?

We're always happy to offer help, information & advice to find the right instrument for you, so please get in touch.

To speak to our sales team, call us on 0113 248 9966, use our Live Chat service or contact us online.

IET Guidance Note 5: Protection Against Electric Shock (BS 7671:2018+A4:2026)

IET Guidance Note 5: Protection Against Electric Shock (BS 7671:2018+A4:2026) focuses on one of the most fundamental objectives of electrical design and installation: preventing electric shock. It provides practical guidance for specifiers, designers, contractors and inspectors, helping them apply BS 7671 requirements consistently to improve safety, compliance and reliability across electrical installations.

Aligned fully with BS 7671:2018+A4:2026, this guidance note explains how to interpret and apply shock protection measures in real world scenarios, supporting better decisions during design, installation and verification. It’s also a valuable reference during inspection and testing, where correct interpretation of results and protective measures is essential.

Updates include guidance covering Power over Ethernet (PoE), maximum permissible measured earth fault loop impedance (EFLI), and clear direction on the verification of site-applied insulation, supporting safe installation practices and accurate compliance checks across modern systems.