Бронированная проводниковая продукция необходима для создания сетей в местах, где есть опасность механических повреждений, воздействия агрессивных веществ. В её конструкции предусмотрен слой металлической ленты, предназначенной для защиты жилы от негативных воздействий. Один из примеров таких изделий — кабель ААБл.
Основные технические характеристики:
Рабочее напряжение — 1, 6, 10 тысяч Вольт. Зависит от толщины и количества токопроводящих жил.
Допустимая относительная влажность воздуха при температуре до +35°С — 98%.
Сопротивление изоляции 1000 метров провода для продукции 1 кВ — не менее 100 Мом, для изделий более 1 кВ — не менее 200 Мом.
Максимально допустимая температура жил: +80°С для кабелей 1 кВ и +70°С — для кабелей более 1 кВ.
Максимальная температура жил в аварийных ситуациях — +90°С.
Максимальная температура при КЗ — +200°С.
Минимальный радиус изгиба при монтаже для одножильных изделий составляет 25 диаметров, для многожильных — 15 диаметров.
Минимальный срок службы — 30 лет.
Характеристики кабелей ААБл с разным количеством и площадью сечения жил
Качество продукции, правила обращения с ней, приемки и эксплуатации описаны в ГОСТ 18410-73. Требования к качеству токопроводящих жил должны соответствовать ГОСТ 22483-2012 (IEC 60228:2004). Это международный стандарт, которым руководствуются российские, белорусские, узбекские и киргизские производители.
Недостатки данной продукции — в ограничениях по монтажу и чувствительности к влаге. Нельзя устанавливать провод на поверхностях, между начальной и конечной точкой которых разница более 15 метров в высоту. При попадании влаги под изоляцию значительно снижаются диэлектрические свойства последней. Поэтому при прокладке используют герметизирующие оболочки из свинца или алюминия.
Конструкция
Основная информация подается в названии кабеля. Каждая буква обозначает определенную особенность строения или эксплуатации изделия. Расшифровка кабеля — это умение, которое позволяет легко выбирать подходящие изделия.
ААБл — расшифровка:
А – алюминиевая сердцевина (токопроводящая жила). Данный материал уступает меди по сопротивлению, прочности, устойчивости к изгибам, но удешевляет продукцию. При правильном обращении алюминиевый провод прослужит не меньше медного.
А – алюминиевая защитная оболочка.
Б – броня, состоящая из двухслойной стальной ленты.
Л — под броней проложена пластмассовая изоляция.
Плотность алюминия — 2,71*103 кг/м3, меди – 8,9*103 кг/м3. Поэтому при прочих равных условиях алюминиевый провод примерно в 3,2 раз легче. Масса очень важна, когда речь идет о поставках продукции для создания масштабных электромагистралей.
В оболочке кабеля также присутствует электротехническая бумага. Она сделана из целлюлозы высокой степени очистки, обладает значительной плотностью. Отличается наличием электроизоляционных свойств, равномерностью толщины, гладкостью поверхности. Материал пропитывают бакелитовой смолой. Это вещество способствует созданию однородной структуры материала, однородности его электротехнических параметров, повышает механическую прочность.
Строение кабеля ААБл:
Токопроводящая жила:
однопроволочная сечением 25-240 мм2;
многопроволочная (обозначается (ож)) сечением 70-800 мм2.
Бумажная изоляция с обозначением сердцевин. Маркировка жил может быть цифровой и цветовой. Первая применяется для проводов достаточного для нанесения символов диаметра.
Бумажные жгуты.
Электротехническая бумага.
Экранировка из токопроводящей бумаги — применяется к кабелям, предназначенным для работы под напряжением от 6 кВ.
Оболочка из алюминия.
Трехслойная подушка из битума поливинилхлоридной пленки и крепированной бумаги.
Стальная броня.
Наружная изоляция из кабельной или стеклянной пряжи.
Область применения
Климатическое исполнение провода позволяет применять его во всех условиях: от теплого до холодного климата. Он выдерживает температуру окружающей среды от -50 до +50°С. При этом прокладывать провод без предварительного подогрева можно при температуре не ниже 0°С. В противном случае загустевший пропиточный состав приведет к склеиванию слоев, их разрыву в процессе работы, а внешняя оболочка, потеряв свою эластичность, треснет.
Сфера применения силового кабеля:
Присоединение промышленного оборудования, агрегатов общественного значения (силовых распределительных щитов домов, микрорайонов) к сетям, передающим переменный ток напряжением от 1 до 6 кВ и частотой 50–60 Гц.
Прокладка магистралей в грунте с низкой или средней коррозийной активностью, при условии отсутствия блуждающих токов.
Проведение магистралей на наклонных поверхностях при условии, что пропитка бумажной изоляции — нестекающая. Такой особенностью обладает подвид кабеля — ЦААБл.
Не рекомендуется использовать продукцию в следующих условиях:
При наличии высоких нагрузок на растяжение. Бронированные кабели не устойчивы к таким влияниям из-за непластичности стальной обмотки (брони).
В грунте с высокой коррозионной активностью.
Решение об использовании продукции принимает профессионал, исходя из её характеристик, конструкции, нормативных документов. Поэтому важно знать, из чего состоит кабель ААБл, какими изделиями его можно заменить в тех или иных условиях.
Какой продукцией можно заменить
У кабеля существуют подвиды, обладающие дополнительными свойствами, более высокими характеристиками. Они представлены в таблице ниже.
Приведенные отличия носят справочный характер. Решение о применении той или иной проводниковой продукции всегда принимает специалист, руководствуясь результатами исследований, расчетами.
Good day! I could have sworn I’ve visited this web site before but after going through many of the posts I realized it’s new to me. Regardless, I’m certainly delighted I came across it and I’ll be book-marking it and checking back often!
I am not sure where you are getting your information, but good topic. I needs to spend some time learning more or understanding more. Thanks for excellent information I was looking for this information for my mission.
I like the helpful information you provide in your articles.
I will bookmark your weblog and check again here frequently.
I’m quite sure I will learn many new stuff right here!
Good luck for the next!
Interesting blog post. Some tips i would like to make contributions about is that personal computer memory must be purchased but if your computer is unable to cope with whatever you do by using it. One can set up two RAM memory boards containing 1GB each, in particular, but not one of 1GB and one of 2GB. One should always check the manufacturer’s documentation for own PC to be sure what type of storage it can take.
Hello, its pleasant piece of writing about media print, we all be familiar with media is a
fantastic source of information.
I blog quite often and I seriously appreciate your information. Your article has really peaked my interest. I am going to bookmark your website and keep checking for new information about once per week. I subscribed to your RSS feed too.
This web site is mostly a walk-via for all the data you needed about this and didn?t know who to ask. Glimpse here, and also you?ll positively uncover it.
I have witnessed that clever real estate agents all around you are Advertising and marketing. They are knowing that it’s not only placing a sign post in the front property. It’s really concerning building relationships with these sellers who one of these days will become purchasers. So, after you give your time and energy to serving these dealers go it alone — the «Law involving Reciprocity» kicks in. Good blog post.
Greetings! Very helpful advice within this post! It is the little changes that produce the most significant changes. Thanks for sharing!
Do you mind if I quote a couple of your articles as long as I provide credit and sources back to your site? My blog is in the very same niche as yours and my users would definitely benefit from a lot of the information you provide here. Please let me know if this alright with you. Thank you!
Excellent post. I was checking continuously this blog and I am impressed! Very useful info specifically the last part 🙂 I care for such information a lot. I was seeking this particular information for a very long time. Thank you and good luck.
Thanks for any other informative site. Where else may I get that type of information written in such a perfect means? I have a undertaking that I’m simply now running on, and I have been at the look out for such information.
Having read this I thought it was extremely enlightening. I appreciate you spending some time and energy to put this content together. I once again find myself personally spending way too much time both reading and commenting. But so what, it was still worth it.
Pretty! This has been a really wonderful post. Many thanks for supplying these details.
Definitely imagine that that you stated. Your favourite justification seemed to be at the internet the easiest factor to consider of. I say to you, I definitely get irked while people think about worries that they plainly don’t know about. You managed to hit the nail upon the highest as well as outlined out the whole thing without having side-effects , folks can take a signal. Will likely be back to get more. Thank you
Helpful information. Fortunate me I discovered your website accidentally, and I’m stunned why this twist of fate did not took place earlier! I bookmarked it.
You need to take part in a contest for one of the best websites online. I most certainly will highly recommend this website!
After looking over a handful of the blog posts on your blog, I truly like
your technique of blogging. I saved as a favorite it to my bookmark
site list and will be checking back in the near future.
Take a look at my website too and tell me how you feel.
You can definitely see your enthusiasm in the paintings you write. The world hopes for even more passionate writers like you who are not afraid to mention how they believe. At all times go after your heart.
This website was… how do you say it? Relevant!! Finally I’ve found something that helped me. Thank you!
Have you ever thought about creating an ebook or guest authoring on other websites? I have a blog centered on the same subjects you discuss and would love to have you share some stories/information. I know my audience would value your work. If you are even remotely interested, feel free to shoot me an e-mail.
I have noticed that online diploma is getting popular because obtaining your degree online has turned into a popular method for many people. Numerous people have not really had a possibility to attend a conventional college or university yet seek the raised earning possibilities and career advancement that a Bachelor’s Degree affords. Still some others might have a qualification in one course but want to pursue one thing they now have an interest in.
Aw, this was an incredibly nice post. Taking a few minutes and actual effort to create a great article… but what can I say… I hesitate a lot and never seem to get anything done.
Thank you for this article. I’d also like to convey that it can end up being hard if you are in school and just starting out to create a long credit history. There are many scholars who are only trying to live and have a good or good credit history can occasionally be a difficult issue to have.
Hello There. I discovered your blog using msn. That is an extremely well written article. I?ll be sure to bookmark it and come back to learn extra of your useful info. Thanks for the post. I?ll definitely comeback.
Attractive component to content. I just stumbled upon your website
and in accession capital to assert that I acquire actually enjoyed account your weblog posts.
Anyway I will be subscribing to your augment and even I fulfillment you get right of entry to persistently quickly.
You need to be a part of a contest for one of the greatest websites on the net. I most certainly will highly recommend this website!
Does your website have a contact page? I’m having a tough time locating it but, I’d like to send you an email. I’ve got some creative ideas for your blog you might be interested in hearing. Either way, great blog and I look forward to seeing it improve over time.
A motivating discussion is definitely worth comment. I do believe that you need to publish more on this issue, it might not be a taboo matter but generally people do not speak about these issues. To the next! Cheers!
I loved as much as you will receive carried out right here. The sketch is attractive, your authored subject matter stylish. nonetheless, you command get got an impatience over that you wish be delivering the following. unwell unquestionably come more formerly again as exactly the same nearly very often inside case you shield this increase.
Hello There. I discovered your blog the use of msn. That is a really well written article. I?ll make sure to bookmark it and return to read more of your helpful info. Thank you for the post. I?ll definitely comeback.
An outstanding share! I’ve just forwarded this onto a colleague who has been conducting a little research on this. And he in fact bought me lunch due to the fact that I discovered it for him… lol. So let me reword this…. Thanks for the meal!! But yeah, thanx for spending the time to talk about this topic here on your web site.
That is a great tip particularly to those fresh to the blogosphere. Short but very precise information… Thanks for sharing this one. A must read article!
Hey! I just wanted to ask if you ever have any trouble with hackers? My last blog (wordpress) was hacked and I ended up losing several weeks of hard work due to no backup. Do you have any solutions to stop hackers?
Hi there! I just would like to give a huge thumbs up for the nice information you’ve gotten here on this post. I will likely be coming again to your weblog for more soon.
Good post. I learn something new and challenging on sites I stumbleupon on a daily basis. It’s always useful to read through articles from other writers and use a little something from other websites.
Aw, this was an extremely nice post. Finding the time and actual effort to make a very good article… but what can I say… I procrastinate a whole lot and don’t seem to get nearly anything done.
Way cool! Some extremely valid points! I appreciate you writing this article and the rest of the site is really good.
There’s certainly a great deal to know about this subject. I love all the points you have made.
I really like it when individuals get together and share views. Great blog, stick with it.
I’m so happy to read this. This is the kind of manual that needs to be given and not the accidental misinformation that is at the other blogs. Appreciate your sharing this greatest doc.
Thanks for your publiction. Another element is that just being a photographer includes not only trouble in recording award-winning photographs and also hardships in getting the best digicam suited to your requirements and most especially challenges in maintaining the caliber of your camera. This really is very genuine and clear for those photography addicts that are directly into capturing a nature’s exciting scenes — the mountains, the forests, the actual wild and the seas. Visiting these adventurous places undoubtedly requires a digital camera that can surpass the wild’s hard settings.
Hmm is anyone else encountering problems with the pictures on this blog loading? I’m trying to determine if its a problem on my end or if it’s the blog. Any responses would be greatly appreciated.
Aw, this was a very good post. Finding the time and actual effort to create a top notch article… but what can I say… I procrastinate a whole lot and never seem to get anything done.
I’ve come across that nowadays, more and more people are being attracted to video cameras and the field of picture taking. However, as a photographer, you need to first shell out so much time deciding the model of digital camera to buy and also moving store to store just so you can buy the most economical camera of the trademark you have decided to select. But it would not end just there. You also have to take into account whether you should purchase a digital digital camera extended warranty. Thanks alot : ) for the good suggestions I acquired from your website.
A further issue is that video games are typically serious naturally with the most important focus on learning rather than enjoyment. Although, we have an entertainment part to keep the kids engaged, each one game is generally designed to develop a specific skill set or course, such as instructional math or scientific discipline. Thanks for your publication.
Your style is very unique compared to other people I’ve read stuff from. I appreciate you for posting when you have the opportunity, Guess I will just bookmark this blog.
I was wondering if you ever thought of changing the layout of your website? Its very well written; I love what youve got to say. But maybe you could a little more in the way of content so people could connect with it better. Youve got an awful lot of text for only having one or two images. Maybe you could space it out better?
I have discovered that costs for on-line degree gurus tend to be a terrific value. For instance a full Bachelor’s Degree in Communication in the University of Phoenix Online consists of Sixty credits with $515/credit or $30,900. Also American Intercontinental University Online makes available Bachelors of Business Administration with a overall program element of 180 units and a worth of $30,560. Online degree learning has made getting your higher education degree far less difficult because you might earn your own degree from the comfort in your home and when you finish from work. Thanks for all your other tips I have learned through your web site.
Wonderful post! We will be linking to this particularly great article on our site. Keep up the great writing.