EP 4146357 A1 20230315 - IMPROVED E-EXTINGUISHING LANCE
Title (en)
IMPROVED E-EXTINGUISHING LANCE
Title (de)
VERBESSERTE E-LÖSCHLANZE
Title (fr)
LANCE D'EXTINCTION ÉLECTRONIQUE AMÉLIORÉE
Publication
Application
Priority
- DE 202020102574 U 20200507
- EP 2021062143 W 20210507
Abstract (en)
[origin: CA3182374A1] The invention relates to an extinguishing lance (10) for electrical devices that are burning, the extinguishing lance comprising: - a holding portion having a handle part (11) for operation; - an extinguishing-agent feed having a coupling device (12) for connecting a pressure hose for extinguishing agent; and - a tubular extinguishing portion (13), from the free end of which extinguishing agent is introduced, under pressure, into the object that is burning. The handle part of the holding portion has a covering (11a) which is insulating for voltages U of = 500 V. The extinguishing portion consists of material of high tensile strength Rm, said material withstanding a mechanical stress s of = 500 N/mm2 and having a melting temperature ts of = 650°C. At the free end of the extinguishing portion, the extinguishing portion tapers to a point and has a constricted hollow flow cross-section for extinguishing agent conducted under pressure. The extinguishing portion and its tapered, additionally hardened end are produced from stainless steel. The extinguishing lance is characterized in that the extinguishing portion has, at least in the region of the holding portion, a voltage-insulating covering (13a), which is electrically insulating for voltages U of = 500 V. Thus, the minimum legal requirements for protection against thermal hazards, against mechanical overloads and against electrical hazards are reliably met.
IPC 8 full level
A62C 31/22 (2006.01); A62C 3/07 (2006.01); A62C 3/16 (2006.01); A62C 31/02 (2006.01); A62C 31/28 (2006.01)
CPC (source: EP KR US)
A62C 3/07 (2013.01 - US); A62C 3/16 (2013.01 - EP KR US); A62C 31/02 (2013.01 - EP KR); A62C 31/22 (2013.01 - EP KR US); A62C 31/28 (2013.01 - EP KR); A62C 3/07 (2013.01 - EP KR)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DE 202020102574 U1 20200528; CA 3182374 A1 20211111; EP 4146357 A1 20230315; EP 4146357 B1 20240417; EP 4146357 C0 20240417; KR 20230005997 A 20230110; US 2023241433 A1 20230803; WO 2021224457 A1 20211111
DOCDB simple family (application)
DE 202020102574 U 20200507; CA 3182374 A 20210507; EP 2021062143 W 20210507; EP 21724650 A 20210507; KR 20227042448 A 20210507; US 202117923248 A 20210507