Схема проводки квартири та електричний щит

[CC19]

А на сигналізацію взагалі установка ПЗВ заборонена.
Та, начебто, ні.

Згоден, не все так категорично, але ПЗВ, як не крути, зменшує надійність системи в цілому, тому якщо ПЗВ може завдати більше шкоди ніж користі (користі взагалі для сигналізації не бачу), то й встановлювати його не потрібно. В любому випадку, Firetuf, дав посилання на норми.

[Muta]

Тобто. виходить так: навантаження, наприклад, 10А, ставимо ПЗВ 16А. 16А х0,4 = 6,4мА Це без дротів. 6,4мА х 3 = 19,2мА. Але це знову ж таки, без проводів. А ось 25А проходить по межі спрацьовування 25Ах0, 4 = 10мА

Якщо струм навантаження 10 А, то чому ми множимо 16Ах0,4???.
Диф. уставка не залежить від уставки струмового розчеплювача хоч 16 А , хоч 20 А, хоч 25 А.
Якщо струм витоку надто великий то треба, ятд, зменшувати довжину ліній, застосовувати обладнання без витоку (хіба?) , розбивати групи на меншими навантаженнями (і відповідно меншими витоками)

[rga]

В любому випадку, Firetuf, дав посилання на норми.

То так, але пожежна сигналізація не відключиться, бо в неї є безперебійне живлення за рахунок акумуляторів на 24 години щонайменше.
А ось наскільки той БЖ пожежної сигналізації (і охоронної також) сам по собі захищений від перенапруг, це питання. Чи не згорить він якщо що? Тоді вже сигналізація точно вимкнеться.
Я не наполягаю, ми в завданнях на живлення сигналізації про ПЗВ ніколи не згадували, але чому б і ні, якщо є змога? Воно не нашкодить явно.

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