EXTENSION FRAME Russian patent published in 2022 - IPC H02G3/22

Abstract RU 2774670 C2

FIELD: electrical engineering.

SUBSTANCE: extension frame (1) contains box (3) and flange (2) located at one end of box (3). A through hole passes through the center of box (3) and through flange (2). According to the invention, a set of holes (4, 5) is provided on sides of box (3), and strips of bulging material (6) are located along the inner surface of box (3) and along its inner periphery. The above-mentioned strips are located so that holes (4, 5) provide ventilation of extension frame (1) on a non-fire side and thus cool cables located in the through hole.

EFFECT: increase in the speed of cable protection from fire.

16 cl, 8 dwg

Similar patents RU2774670C2

Title	Year	Author	Number
THROUGH DEVICE AND MODULE	2016	Karlsson Milton	RU2718347C2
IMPROVED PANEL, IN PARTICULAR, COMPRISING DOOR	2009	Fabbri Fabio Dal' Pane Marko	RU2514065C2
METHOD OF MANUFACTURE OF STRUCTURAL MEMBER	1991	Lesli Dehvid Goulbi[Au]	RU2090714C1
AEROSOL GENERATOR	2022	Park, Jueon Kim, Minkyu Lee, Jongsub Cho, Byungsung	RU2822055C2
FIRE DOOR	2006	Shagin Aleksandr Pavlovich Khar'Kin Aleksandr Sentjabr'Evich Krotov Aleksandr Vladimirovich Vanin Anatolij Petrovich Vazhaev Aleksandr Zakharovich Noskov Aleksandr Ivanovich	RU2317393C1
CONSTRUCTION KIT FOR ERECTING A SUPPORT FOR A VIDEO SURVEILLANCE SYSTEM	2020	Tikhonov Oleg Petrovich Korol Ivan Ivanovich Topilskij German Vadimovich Tveritnev Evgenij Vyacheslavovich	RU2745377C1
CONTAINER	2005	Chejf Adam Dzh. Bedford Stjuart F. Ehrdmann Kennet U. Makdonal'D Dzhejms Eh. Tehmkhejn Dilip R. Rehmsi Oliver Dzh. Khudas Ronal'D D. Uotling Charli Berni Forrest A. Bruno Bob Bellivo Skott Kostello Vinsent L.	RU2357872C2
AUTOMATIC COILER	2006	Mashkin Vjacheslav Vasil'Evich Fedchenko Nikolaj Dmitrievich Pan'Ko Jurij Andreevich Sazonov Evgenij Aleksandrovich Sapozhnikov Aleksandr Anatol'Evich Kirenevich Vladimir Borisovich Laukhin Sergej Jur'Evich	RU2312054C1
COMBUSTION METHOD OF WOOD WASTES, AND HEAT GENERATOR FOR ITS IMPLEMENTATION WITH HEATER AND HEAT EXCHANGE CHAMBER AND COVER PLATE OF COMBUSTION CHAMBER	2011	Kuznetsov Vladislav Borisovich Shirokov Aleksandr Vladimirovich	RU2484378C1
MOLDING MACHINE FOR MOLDING PARTS FROM FOAMED PLASTICS	2011	Batstsika Karlo	RU2703232C2

RU 2 774 670 C2

Authors

Pettersson, Ronni

Dates

2022-06-21—Published

2018-08-30—Filed