Конструкция
Гермоввод состоит из:
штуцера — патрубка с резьбой для соединения изделия с оборудованием;
прокладки, обеспечивающей герметичность соединений;
крепежной и накидной гаек.
Приспособления обладают прижимной конструкцией — гайка прижимает провод через уплотнитель до достижения гермитичности. Поэтому один и тот же гермоввод применим к кабелям разных диаметров (диапазон составляет 2—3 мм). Наилучшая герметичность достигается, если диаметр переходника приближен к диаметру провода.
Как выбрать
При выборе нужно руководствоваться следующим:
Взрывозащищенность. Если необходим ввод кабеля на взрывозащищенное оборудование, переходник должен иметь соответствующую маркировку, соответствовать ГОСТ Р МЭК 60079, быть сертифицированным по ТР ТС 012/2011. Обратите внимание, что существуют различные классы взрывозащиты.
Материал изготовления. Подбирается в зависимости от агрессивности окружающей среды. Для домашних распаечных коробок подойдет пластиковый герметичный ввод — он недорого стоит, обеспечивает достаточную защиту. Если условия эксплуатации предполагают механические повреждения, воздействия влаги, необходим стальной, латунный или латунь-никелевый переходник.
Тип и размер резьбы. Она может быть метрическая, коническая, дюймовая. Соединение должно соответствовать пазу под гермоввод.
Размеры уплотнителей должны попадать в диапазон внутреннего и наружного диаметров кабеля. Эти данные можно получить из справочных материалов. К примеру, если диаметр провода с обшивкой — 13 мм, а без обшивки — 11 мм, то и уплотнитель должен быть от 11 до 13 мм. Рекомендуется брать усредненное значение. В описанном случае — 12 мм. Так уплотнитель будет плотно и безопасно прижимать проводник — не повредит его, но и не слетит.
Материал изготовления уплотнителя. Силиконовые изделия не теряют своих свойств в диапазоне от -60 до +120°С, неопреновые — от -60 до +68°С. Характеристики могут немного отличаться — зависят от конкретного вида материала, способа его получения.
В разных случаях могут потребоваться дополнительные детали: наконечник для присоединения металлорукава, крепление под заземление, контргайка.
Exceptional post however I was wondering if you could write a litte more on this topic? I’d be very thankful if you could elaborate a little bit more. Kudos!
Unquestionably believe that which you said. Your favorite reason appeared to be on the net the easiest thing to be aware of.
I say to you, I definitely get irked while people consider
worries that they plainly do not know about. You managed to hit the nail upon the top and also defined out the whole thing without having side effect , people can take a
signal. Will likely be back to get more. Thanks
Porn site
Every weekend i used to pay a quick visit this web site, for the reason that i want enjoyment, as this this site conations
in fact pleasant funny information too.
I blog quite often and I genuinely thank you for your content.
Your article has truly peaked my interest. I am going to bookmark your website and keep checking for new details about once a week.
I subscribed to your Feed too.
You really make it seem so easy with your presentation but
I find this topic to be actually something which I think I would
never understand. It seems too complicated and extremely broad for me.
I’m looking forward for your next post, I will try to
get the hang of it!
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 bought an shakiness over that you wish
be delivering the following. unwell unquestionably come further formerly again since exactly the same nearly very often inside case
you shield this increase.
I was able to find good advice from your blog posts.
I discovered more something totally new on this fat reduction issue. A single issue is a good nutrition is vital while dieting. A massive reduction in fast foods, sugary foods, fried foods, sweet foods, red meat, and whitened flour products may perhaps be necessary. Keeping wastes harmful bacteria, and toxic compounds may prevent aims for shedding fat. While selected drugs temporarily solve the challenge, the horrible side effects usually are not worth it, and so they never offer you more than a non permanent solution. It’s a known proven fact that 95 of diet plans fail. Thank you for sharing your notions on this blog.
Great post. I am experiencing a few of these
issues as well..
Now I am ready to do my breakfast, after having my breakfast coming again to read additional
news.
I have figured out some new things from your website about personal computers. Another thing I have always assumed is that laptop computers have become an item that each household must have for some reasons. They provide convenient ways in which to organize households, pay bills, search for information, study, tune in to music and in some cases watch television shows. An innovative method to complete these tasks has been a notebook computer. These pcs are portable ones, small, robust and lightweight.
Hello, after reading this awesome post i am as well cheerful to share my familiarity here with mates.|
Hello! This post couldn’t be written any better!
Reading through this post reminds me of my good old room mate!
He always kept talking about this. I will forward this article to
him. Pretty sure he will have a good read. Many thanks for sharing!
Hello my friend! I want to say that this article is
awesome, great written and include approximately all important infos.
I would like to peer extra posts like this .
This page certainly has all of the information and facts
I needed concerning this subject and didn’t know who
to ask.
Very nice post. I simply stumbled upon your weblog and
wanted to mention that I have truly enjoyed surfing around
your blog posts. In any case I’ll be subscribing on your feed and I’m hoping you write again soon!
Pretty! This was an incredibly wonderful article. Thanks for supplying this info.
Your style is unique in comparison to other folks I’ve read stuff from. Thanks for posting when you have the opportunity, Guess I will just book mark this web site.|
I do believe that a foreclosure can have a significant effect on the borrower’s life. Mortgage foreclosures can have a 8 to few years negative affect on a applicant’s credit report. Any borrower who’s applied for a mortgage or any kind of loans for that matter, knows that the actual worse credit rating is definitely, the more complicated it is to have a decent bank loan. In addition, it might affect a new borrower’s capability to find a good place to lease or rent, if that results in being the alternative real estate solution. Thanks for your blog post.
I really like your blog.. very nice colors & theme. Did you create this website yourself or did you hire someone to do it for you? Plz reply as I’m looking to construct my own blog and would like to know where u got this from. kudos
I have been exploring for a little for any high-quality articles or blog posts in this kind of house . Exploring in Yahoo I finally stumbled upon this web site. Studying this information So i?m glad to express that I’ve a very good uncanny feeling I found out just what I needed. I so much indubitably will make certain to do not overlook this website and provides it a look on a relentless basis.
Right here is the perfect blog for everyone who would like to find out about this topic. You know a whole lot its almost tough to argue with you (not that I really will need to…HaHa). You definitely put a new spin on a subject that has been discussed for decades. Great stuff, just wonderful.
Howdy, I believe your site could possibly be having browser compatibility problems. Whenever I look at your site in Safari, it looks fine however when opening in IE, it’s got some overlapping issues. I simply wanted to provide you with a quick heads up! Aside from that, wonderful website!|
I’m amazed, I have to admit. Rarely do I come across a blog that’s equally educative and interesting, and let me tell you, you’ve hit the nail on the head. The problem is an issue that too few people are speaking intelligently about. I’m very happy I found this in my search for something relating to this.|
My partner and I absolutely love your blog and find most of your post’s to be just what I’m looking for. Do you offer guest writers to write content in your case? I wouldn’t mind writing a post or elaborating on some of the subjects you write regarding here. Again, awesome website!|
My brother recommended I might like this blog. He was totally right. This post truly made my day. You can not imagine simply how much time I had spent for this info! Thanks!|
When someone writes an article he/she keeps the image of a user in his/her brain that how a user can understand it. Thus that’s why this piece of writing is great. Thanks!|
Hey there! This is my first comment here so I just wanted to give a quick shout out and say I really enjoy reading your articles. Can you recommend any other blogs/websites/forums that deal with the same topics? Thanks for your time!|
It’s a shame you don’t have a donate button! I’d without a doubt donate to this brilliant blog! I guess for now i’ll settle for bookmarking and adding your RSS feed to my Google account. I look forward to new updates and will share this website with my Facebook group. Talk soon!
This site does not render appropriately on my blackberry — you may want to try and repair that
Hello it’s me, I am also visiting this web site daily, this web page is actually good and the people are really sharing fastidious thoughts.|
Thanks for your publication. I also believe that laptop computers have become more and more popular right now, and now will often be the only type of computer used in a household. Simply because at the same time they are becoming more and more reasonably priced, their processing power is growing to the point where they’re as highly effective as desktop computers from just a few years ago.
A good web site with interesting content, that’s what I need. Thank you for making this web site, and I will be visiting again. Do you do newsletters? I Can’t find it.
Your style is really unique in comparison to other people I have read stuff from. Thanks for posting when you’ve got the opportunity, Guess I’ll just bookmark this page.|
Currently it sounds like Movable Type is the top blogging platform out there right now. (from what I’ve read) Is that what you’re using on your blog?|
I’ve been exploring for a bit for any high-quality articles or blog posts on this sort of area . Exploring in Yahoo I finally stumbled upon this website. Studying this info So i’m happy to express that I have a very good uncanny feeling I came upon just what I needed. I such a lot certainly will make sure to don?t put out of your mind this website and give it a glance on a continuing basis.|
For most up-to-date news you have to pay a visit world wide web and on internet I found this site as a most excellent web page for most up-to-date updates.|
Viagra
I have read so many content regarding the blogger lovers but this article is really a good paragraph, keep it up.|
Hello! Would you mind if I share your blog with my zynga group? There’s a lot of folks that I think would really enjoy your content. Please let me know. Thank you|
Good post. I learn something new and challenging on sites I stumbleupon on a daily basis. It’s always exciting to read content from other writers and use something from their web sites. |
Hi, i think that i saw you visited my website so i came to “return the favor”.I’m attempting to find things to enhance my website!I suppose its ok to use a few of your ideas!!|
I have read so many articles regarding the blogger lovers except this post is actually a nice article, keep it up.|
Sex
After looking over a handful of the articles on your blog, I seriously like your technique of blogging. I saved as a favorite it to my bookmark website list and will be checking back soon. Please check out my web site too and tell me what you think.|
Many thanks for this article. I’d also like to say that it can become hard when you find yourself in school and simply starting out to initiate a long credit rating. There are many students who are merely trying to make it and have long or positive credit history can be a difficult point to have.
Scam
It’s going to be end of mine day, however before finish I am reading this enormous article to increase my knowledge.|
I?m not sure where you’re getting your info, but good topic. I needs to spend some time learning more or understanding more. Thanks for excellent information I was looking for this info for my mission.