ELECTRICAL INSTALLATIONS OF BUILDINGS. PART 4: PROTECTION FOR SAFETY. CHAPTER 44: PROTECTION AGAINST OVERVOLTAGES. SECTION 442: PROTECTION OF LOW-VOLTAGE INSTALLATIONS AGAINST FAULTS BETWEEN HIGH-VOLTAGE SYSTEMS AND EARTH.
NORMA vydaná dňa 19.1.1999
Designation standards: UNE 20460-4-442:1999
Note: NEPLATNÁ
Publication date standards: 19.1.1999
The number of pages: 28
Approximate weight : 84 g (0.19 lbs)
Country: Spanish technical standard
Kategória: Technické normy UNE