Deprecated: Function split() is deprecated in /home/b5in1/public_html/_cms/core/c_page.php on line 67

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Deprecated: Function eregi() is deprecated in /home/b5in1/public_html/_cms/core/c_page.php on line 78

Deprecated: Function eregi() is deprecated in /home/b5in1/public_html/_cms/core/c_page.php on line 78

Strict Standards: Non-static method c_db::sql_get_info() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/core/c_page.php on line 123

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Deprecated: Function ereg_replace() is deprecated in /home/b5in1/public_html/_cms/core/c_external.php on line 36

Deprecated: Function ereg_replace() is deprecated in /home/b5in1/public_html/_cms/core/c_external.php on line 37

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Deprecated: Function ereg_replace() is deprecated in /home/b5in1/public_html/_cms/core/c_external.php on line 39

Strict Standards: Non-static method c_page::get_module_config() should not be called statically in /home/b5in1/public_html/_cms/core/autoexec.php on line 53

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Strict Standards: Non-static method c_module::get_list() should not be called statically in /home/b5in1/public_html/index.php on line 7

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Deprecated: Function ereg_replace() is deprecated in /home/b5in1/public_html/_cms/core/c_tpl.php on line 73

Deprecated: Function ereg_replace() is deprecated in /home/b5in1/public_html/_cms/core/c_tpl.php on line 74

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Strict Standards: Non-static method c_voting::voting_get_info() should not be called statically in /home/b5in1/public_html/_cms/modules/voting/block/index.php on line 10

Strict Standards: Non-static method c_db::sql_get_info() should not be called statically in /home/b5in1/public_html/_cms/modules/voting/c_voting.php on line 38

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Deprecated: Function ereg_replace() is deprecated in /home/b5in1/public_html/_cms/core/c_tpl.php on line 73

Deprecated: Function ereg_replace() is deprecated in /home/b5in1/public_html/_cms/core/c_tpl.php on line 74

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Deprecated: Function eregi() is deprecated in /home/b5in1/public_html/_cms/core/c_external.php on line 177

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Strict Standards: Non-static method c_db::sql_get_info() should not be called statically in /home/b5in1/public_html/_cms/modules/copyrights/index.php on line 16

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Strict Standards: Non-static method c_db::sql_get_info() should not be called statically in /home/b5in1/public_html/_cms/modules/copyrights/index.php on line 25

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Strict Standards: Non-static method c_db::sql_get_info() should not be called statically in /home/b5in1/public_html/_cms/modules/text_block/index.php on line 13

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Strict Standards: Non-static method c_db::sql_get_info() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/modules/menu/c_menu.php on line 24

Strict Standards: Non-static method c_db::sql() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/core/c_db.php on line 192

Deprecated: Function eregi() is deprecated in /home/b5in1/public_html/_cms/modules/menu/index.php on line 17

Strict Standards: Non-static method c_db::sql_get_list() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/modules/menu/c_menu.php on line 42

Strict Standards: Non-static method c_db::sql() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/core/c_db.php on line 243

Strict Standards: Non-static method c_db::sql_get_list() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/modules/menu/c_menu.php on line 42

Strict Standards: Non-static method c_db::sql() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/core/c_db.php on line 243

Strict Standards: Non-static method c_db::sql_get_list() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/modules/menu/c_menu.php on line 42

Strict Standards: Non-static method c_db::sql() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/core/c_db.php on line 243

Strict Standards: Non-static method c_db::sql_get_list() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/modules/menu/c_menu.php on line 42

Strict Standards: Non-static method c_db::sql() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/core/c_db.php on line 243

Strict Standards: Non-static method c_db::sql_get_list() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/modules/menu/c_menu.php on line 42

Strict Standards: Non-static method c_db::sql() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/core/c_db.php on line 243

Strict Standards: Non-static method c_db::sql_get_list() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/modules/menu/c_menu.php on line 42

Strict Standards: Non-static method c_db::sql() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/core/c_db.php on line 243

Deprecated: Function ereg_replace() is deprecated in /home/b5in1/public_html/_cms/core/c_tpl.php on line 73

Deprecated: Function ereg_replace() is deprecated in /home/b5in1/public_html/_cms/core/c_tpl.php on line 74

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Strict Standards: Non-static method c_db::sql_get_info() should not be called statically in /home/b5in1/public_html/_cms/modules/text_block/index.php on line 13

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Strict Standards: Non-static method c_db::sql_get_info() should not be called statically in /home/b5in1/public_html/_cms/modules/text/index.php on line 10

Strict Standards: Non-static method c_db::sql() should not be called statically in /home/b5in1/public_html/_cms/core/c_db.php on line 192

Strict Standards: Non-static method c_db::row_info() should not be called statically in /home/b5in1/public_html/_cms/modules/articles/index.php on line 47

Strict Standards: Non-static method c_db::sql() should not be called statically in /home/b5in1/public_html/_cms/core/c_db.php on line 581

Strict Standards: Non-static method c_articles::set_active_flag() should not be called statically in /home/b5in1/public_html/_cms/modules/articles/index.php on line 51

Strict Standards: Non-static method c_db::row_info() should not be called statically in /home/b5in1/public_html/_cms/modules/articles/c_articles.php on line 22

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Strict Standards: Non-static method c_db::row_count() should not be called statically in /home/b5in1/public_html/_cms/modules/articles/index.php on line 70

Strict Standards: Non-static method c_db::sql() should not be called statically in /home/b5in1/public_html/_cms/core/c_db.php on line 624

Deprecated: Function ereg_replace() is deprecated in /home/b5in1/public_html/_cms/core/c_tpl.php on line 73

Deprecated: Function ereg_replace() is deprecated in /home/b5in1/public_html/_cms/core/c_tpl.php on line 74

Strict Standards: Non-static method c_external::get_url() should not be called statically in /home/b5in1/public_html/_cms/modules/articles/type_main/default.php on line 15

Deprecated: Function eregi() is deprecated in /home/b5in1/public_html/_cms/core/c_external.php on line 177

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Strict Standards: Non-static method c_external::get_url() should not be called statically in /home/b5in1/public_html/_cms/modules/articles/type_main/default.php on line 61

Deprecated: Function ereg() is deprecated in /home/b5in1/public_html/_cms/core/c_external.php on line 170

Deprecated: Function eregi() is deprecated in /home/b5in1/public_html/_cms/core/c_external.php on line 177

Deprecated: Function eregi() is deprecated in /home/b5in1/public_html/_cms/core/c_external.php on line 179

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Strict Standards: Non-static method c_db::sql() should not be called statically in /home/b5in1/public_html/_cms/core/c_db.php on line 624

Strict Standards: Non-static method c_catalogue::catalogue_get_list() should not be called statically in /home/b5in1/public_html/_cms/modules/catalogue/menu/index.php on line 14

Strict Standards: Non-static method c_db::sql_get_list() should not be called statically in /home/b5in1/public_html/_cms/modules/catalogue/c_catalogue.php on line 48

Strict Standards: Non-static method c_db::sql() should not be called statically in /home/b5in1/public_html/_cms/core/c_db.php on line 243

Deprecated: Function ereg_replace() is deprecated in /home/b5in1/public_html/_cms/core/c_tpl.php on line 73

Deprecated: Function ereg_replace() is deprecated in /home/b5in1/public_html/_cms/core/c_tpl.php on line 74

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Strict Standards: Non-static method c_db::sql() should not be called statically in /home/b5in1/public_html/_cms/core/c_db.php on line 243

Strict Standards: Non-static method c_external::get_url() should not be called statically in /home/b5in1/public_html/_cms/modules/catalogue/type_menu/5in1.php on line 44

Deprecated: Function ereg() is deprecated in /home/b5in1/public_html/_cms/core/c_external.php on line 170

Deprecated: Function eregi() is deprecated in /home/b5in1/public_html/_cms/core/c_external.php on line 177

Deprecated: Function eregi() is deprecated in /home/b5in1/public_html/_cms/core/c_external.php on line 179

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Strict Standards: Non-static method c_external::get_url() should not be called statically in /home/b5in1/public_html/_cms/modules/catalogue/type_menu/5in1.php on line 44

Deprecated: Function ereg() is deprecated in /home/b5in1/public_html/_cms/core/c_external.php on line 170

Deprecated: Function eregi() is deprecated in /home/b5in1/public_html/_cms/core/c_external.php on line 177

Deprecated: Function eregi() is deprecated in /home/b5in1/public_html/_cms/core/c_external.php on line 179

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Strict Standards: Non-static method c_db::sql() should not be called statically in /home/b5in1/public_html/_cms/core/c_db.php on line 243

Strict Standards: Non-static method c_external::get_url() should not be called statically in /home/b5in1/public_html/_cms/modules/catalogue/type_menu/5in1.php on line 44

Deprecated: Function ereg() is deprecated in /home/b5in1/public_html/_cms/core/c_external.php on line 170

Deprecated: Function eregi() is deprecated in /home/b5in1/public_html/_cms/core/c_external.php on line 177

Deprecated: Function eregi() is deprecated in /home/b5in1/public_html/_cms/core/c_external.php on line 179

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Strict Standards: Non-static method c_db::sql() should not be called statically in /home/b5in1/public_html/_cms/core/c_db.php on line 243

Strict Standards: Non-static method c_external::get_url() should not be called statically in /home/b5in1/public_html/_cms/modules/catalogue/type_menu/5in1.php on line 44

Deprecated: Function ereg() is deprecated in /home/b5in1/public_html/_cms/core/c_external.php on line 170

Deprecated: Function eregi() is deprecated in /home/b5in1/public_html/_cms/core/c_external.php on line 177

Deprecated: Function eregi() is deprecated in /home/b5in1/public_html/_cms/core/c_external.php on line 179

Strict Standards: Non-static method c_db::sql_get_list() should not be called statically in /home/b5in1/public_html/_cms/modules/catalogue/type_menu/5in1.php on line 35

Strict Standards: Non-static method c_db::sql() should not be called statically in /home/b5in1/public_html/_cms/core/c_db.php on line 243

Strict Standards: Non-static method c_external::get_url() should not be called statically in /home/b5in1/public_html/_cms/modules/catalogue/type_menu/5in1.php on line 44

Deprecated: Function ereg() is deprecated in /home/b5in1/public_html/_cms/core/c_external.php on line 170

Deprecated: Function eregi() is deprecated in /home/b5in1/public_html/_cms/core/c_external.php on line 177

Deprecated: Function eregi() is deprecated in /home/b5in1/public_html/_cms/core/c_external.php on line 179

Strict Standards: Non-static method c_db::sql_get_info() should not be called statically in /home/b5in1/public_html/_cms/modules/text_block/index.php on line 13

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Strict Standards: Non-static method c_db::sql_get_info() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/modules/menu/c_menu.php on line 24

Strict Standards: Non-static method c_db::sql() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/core/c_db.php on line 192

Deprecated: Function eregi() is deprecated in /home/b5in1/public_html/_cms/modules/menu/index.php on line 17

Strict Standards: Non-static method c_db::sql_get_list() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/modules/menu/c_menu.php on line 42

Strict Standards: Non-static method c_db::sql() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/core/c_db.php on line 243

Strict Standards: Non-static method c_db::sql_get_list() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/modules/menu/c_menu.php on line 42

Strict Standards: Non-static method c_db::sql() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/core/c_db.php on line 243

Strict Standards: Non-static method c_db::sql_get_list() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/modules/menu/c_menu.php on line 42

Strict Standards: Non-static method c_db::sql() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/core/c_db.php on line 243

Strict Standards: Non-static method c_db::sql_get_list() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/modules/menu/c_menu.php on line 42

Strict Standards: Non-static method c_db::sql() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/core/c_db.php on line 243

Strict Standards: Non-static method c_db::sql_get_list() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/modules/menu/c_menu.php on line 42

Strict Standards: Non-static method c_db::sql() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/core/c_db.php on line 243

Deprecated: Function ereg_replace() is deprecated in /home/b5in1/public_html/_cms/core/c_tpl.php on line 73

Deprecated: Function ereg_replace() is deprecated in /home/b5in1/public_html/_cms/core/c_tpl.php on line 74

Strict Standards: Non-static method c_db::sql_get_info() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/modules/menu/c_menu.php on line 24

Strict Standards: Non-static method c_db::sql() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/core/c_db.php on line 192

Deprecated: Function eregi() is deprecated in /home/b5in1/public_html/_cms/modules/menu/index.php on line 17

Strict Standards: Non-static method c_db::sql_get_list() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/modules/menu/c_menu.php on line 42

Strict Standards: Non-static method c_db::sql() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/core/c_db.php on line 243

Strict Standards: Non-static method c_db::sql_get_list() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/modules/menu/c_menu.php on line 42

Strict Standards: Non-static method c_db::sql() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/core/c_db.php on line 243

Strict Standards: Non-static method c_db::sql_get_list() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/modules/menu/c_menu.php on line 42

Strict Standards: Non-static method c_db::sql() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/core/c_db.php on line 243

Strict Standards: Non-static method c_db::sql_get_list() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/modules/menu/c_menu.php on line 42

Strict Standards: Non-static method c_db::sql() should not be called statically, assuming $this from incompatible context in /home/b5in1/public_html/_cms/core/c_db.php on line 243

Deprecated: Function ereg_replace() is deprecated in /home/b5in1/public_html/_cms/core/c_tpl.php on line 73

Deprecated: Function ereg_replace() is deprecated in /home/b5in1/public_html/_cms/core/c_tpl.php on line 74

Strict Standards: Non-static method c_db::sql_get_info() should not be called statically in /home/b5in1/public_html/_cms/modules/seo/html_head/index.php on line 16

Strict Standards: Non-static method c_db::sql() should not be called statically in /home/b5in1/public_html/_cms/core/c_db.php on line 192

Warning: Cannot modify header information - headers already sent by (output started at /home/b5in1/public_html/_cms/core/c_tpl.php:73) in /home/b5in1/public_html/_cms/modules/seo/html_head/index.php on line 30

Warning: Cannot modify header information - headers already sent by (output started at /home/b5in1/public_html/_cms/core/c_tpl.php:73) in /home/b5in1/public_html/_cms/modules/seo/html_head/index.php on line 31

Warning: Cannot modify header information - headers already sent by (output started at /home/b5in1/public_html/_cms/core/c_tpl.php:73) in /home/b5in1/public_html/_cms/modules/seo/html_head/index.php on line 32

Warning: Cannot modify header information - headers already sent by (output started at /home/b5in1/public_html/_cms/core/c_tpl.php:73) in /home/b5in1/public_html/_cms/modules/seo/html_head/index.php on line 46

Strict Standards: Non-static method c_db::sql_get_list() should not be called statically in /home/b5in1/public_html/index.php on line 94

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Deprecated: Function eregi_replace() is deprecated in /home/b5in1/public_html/index.php on line 107
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Защита электроприборов от скачков напряжения

К выходу из строя электронных приборов, бытовых холодильников, стиральных и посудомоечных машин могут приводить, как резкое повышение напряжения, так и его падение ниже допустимых пределов. Наибольшую опасность представляют длительные повышения и понижения напряжения до запредельных значений по государственному стандарту. Они могут привести к перегреву обмоток электродвигателей БЭП (бытовых электроприборов) и возгоранию.

Бытовые электроприборы европейского и корейского производства более чувствительны к колебаниям и броскам напряжения в сети, чем российские. Все БЭП рассчитаны на безаварийную работу при нормативных отклонениях электрического напряжения. Импортные приборы рассчитаны на безотказную работу при отклонениях напряжения в сетях по их национальным стандартам от 198 до 242 В (220В +/-10 %). Отечественные приборы рассчитывают на работу при напряжении в сети по российскому стандарту от 187 до 242 В (220В +/-15 %).

Однако по разным причинам иногда предельные нагрузки в электрических сетях значительно превышают нормативные. В плохих электрических сетях напряжение может падать ниже 180 В и повышаться до 250 В. При таких отклонения напряжения зарубежные фирмы не гарантируют нормальную работу БЭП. Российским конструкторам БЭП приходится идти на перерасход цветных материалов на изготовление электродвигателей, чтобы обеспечить их работоспособность при повышенных отклонениях напряжения в сети.

Самопроизвольное кратковременное отключение электрического питания вызывает сбои в работе электроники и потери данных в компьютерах, неблагоприятно действует на электрические контакты бытовых холодильников, стиральных и посудомоечных машин и других БЭП, вызывая искрение и эрозию контактов.

Наибольшей опасности при бросках напряжения подвержены электронные приборы. Электронный блок управления выходит из строя раньше, чем электродвигатель компрессора. Наибольшую опасность для холодильника представляет бросок напряжения, совпадающий с моментом включения компрессора. Однако, вероятность такого совпадения чрезвычайно мала.

Броски напряжения представляют меньшее зло, чем длительное повышение/понижение, поскольку действуют очень короткое время. Это подтверждает соотношение отказов БЭП, работающих в городских и сельских электрических сетях. В сельских сетях напряжение чаще не соответствует номинальному, отклонения превышают допустимые значения и поэтому количество отказов БЭП значительно больше, чем в городских.

В городских сетях наиболее опасные ситуации создаются, когда вся инфраструктура района завязана на один большой завод и при низкой квалификации обслуживающего персонала электрических сетей. Большие броски напряжения могут возникать при неожиданном включении и отключении всех электроустановок большого завода. Если разгильдяй электрик случайно отключит нейтральный провод, то все БЭП окажутся под напряжением 380 В.

Повышение напряжения до 380 В обязательно приводит к выходу из строя БЭП.

В сельских сетях опасные ситуации возникают при грозовых разрядах и падениях деревьев на электрические провода. Чем меньше мощность электрической сети, тем больше опасность бросков напряжения для БЭП.

Для защиты маломощной бытовой электроники (компьютеров, аудио и видео аппаратуры) предназначены сетевые фильтры «Пилоты», которые сглаживают небольшие колебания напряжения, но не защищают от больших бросков. «Пилот» не может защитить от повреждений БЭП повышенной мощности и с высокими пусковыми токами (бытовые холодильники, стиральные и посудомоечные машины).

Для защиты от бросков напряжения БЭП повышенной мощности применяют семисторные стабилизаторы, например: «Лидер» или «Шмель». Стабилизаторы механического (трансформаторного) типа не предназначены для защиты от бросков напряжения. Они только выводят напряжение на уровень 220В и создают более благоприятные условия для работы БЭП.

Простые устройства защитного отключения (УЗО) предназначены для спасения жизни людей при замыкании БЭП на корпус и любых повышениях напряжения.

УЗО в сочетании с датчиком превышения напряжения (ДПН) обеспечивают защиту людей от поражения электрическим током и защиту БЭП от повреждений при кратковременных и длительных бросках напряжения в питающей сети. Эти устройства защищают электрические сети от токов утечки, перегрузок и коротких замыканий и предотвращают возможность пожара.

Импортные датчики-реле, ограничивающие подаваемое на БЭП напряжение, защищают от бросков в питающей сети, но являются дефицитом на российском рынке.

Наиболее эффективную защиту электрических приборов обеспечивают источники бесперебойного питания (ИБП), но они очень дороги и предназначены для защиты дорогостоящего оборудования.

Источник: garantremont.spb.ru

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