This video explains the types of protection in chapter 41 of BS7671 and the Maximum Zs values to meet disconnection times when electrical testing. An explanation of correcting the values for temperature when comparing within the wiring regulation or the On-Site-Guide. Worked examples to help with any electrical course.
Learn how to correct the maximum Zs for temperature and apply to your testing onsite.
for all level 3 students or just want to refresh your knowledge to confirm your theory.
Essential understanding for all electricians or electrical apprentices / students. Ideal for Inspection and Testing exams / theory underpinning the subject.
10 янв 2021
