{"product_id":"guidance-note-2-isolation-switching","title":"Guidance Note 2: Isolation \u0026 Switching","description":"Guidance Note 2: Isolation \u0026amp; Switching provides clear guidance on what can be a confusing aspect of BS 7671. It is ideal for those working in design, testing and inspection and maintenance and operational aspects and has been fully updated to BS 7671:2018+A4:2026, including isolation of multipole source systems, guidance on the selection of protective, isolation and switching devices; bidirectional and unidirectional devices and Firefighters switches.","brand":"Gardners","offers":[{"title":"Default Title","offer_id":57490368528757,"sku":"9781837240456","price":42.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/7193\/3106\/files\/9781837240456.jpg?v=1786442264","url":"https:\/\/backstory.london\/products\/guidance-note-2-isolation-switching","provider":"Backstory","version":"1.0","type":"link"}