To learn more about how and for what purposes Amazon uses personal information (such as Amazon Store order history), please visit our Privacy Notice. Buy National Rules for Electrical Installations in Potentially Explosive. You can change your choices at any time by visiting Cookie Preferences, as described in the Cookie Notice. Click ‘Customise Cookies’ to decline these cookies, make more detailed choices, or learn more. Operation Rules for Consuming Electrical Installations and Safety Rules for Operation of Consuming Electrical Installations with assignment of groups of electrical safety Operation Rules for. Third parties use cookies for their purposes of displaying and measuring personalised ads, generating audience insights, and developing and improving products. This includes using first- and third-party cookies, which store or access standard device information such as a unique identifier. If you agree, we’ll also use cookies to complement your shopping experience across the Amazon stores as described in our Cookie Notice. We also use these cookies to understand how customers use our services (for example, by measuring site visits) so we can make improvements. or the NSAI/ETCI National Wiring Rules (for work in the South). We use cookies and similar tools that are necessary to enable you to make purchases, to enhance your shopping experiences and to provide our services, as detailed in our Cookie Notice. Walsh Electrical Services provides Inspection & Testing services in Derry & Donegal.