FR774954A - Perfectionnements aux paratonnerres, parafoudres et paragrèles - Google Patents

Perfectionnements aux paratonnerres, parafoudres et paragrèles

Info

Publication number
FR774954A
FR774954A FR774954DA FR774954A FR 774954 A FR774954 A FR 774954A FR 774954D A FR774954D A FR 774954DA FR 774954 A FR774954 A FR 774954A
Authority
FR
France
Prior art keywords
lightning
rods
arresters
freezing devices
freezing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
English (en)
Inventor
Pierre Grenier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Helita SA Franc
Original Assignee
Helita SA Franc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Helita SA Franc filed Critical Helita SA Franc
Application granted granted Critical
Publication of FR774954A publication Critical patent/FR774954A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G13/00—Installations of lightning conductors; Fastening thereof to supporting structure
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G13/00—Installations of lightning conductors; Fastening thereof to supporting structure
    • H02G13/20—Active discharge triggering
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G13/00—Installations of lightning conductors; Fastening thereof to supporting structure
    • H02G13/80—Discharge by conduction or dissipation, e.g. rods, arresters, spark gaps
FR774954D 1933-09-13 1933-09-13 Perfectionnements aux paratonnerres, parafoudres et paragrèles Expired FR774954A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR774954T 1933-09-13

Publications (1)

Publication Number Publication Date
FR774954A true FR774954A (fr) 1934-12-17

Family

ID=9200168

Family Applications (1)

Application Number Title Priority Date Filing Date
FR774954D Expired FR774954A (fr) 1933-09-13 1933-09-13 Perfectionnements aux paratonnerres, parafoudres et paragrèles

Country Status (1)

Country Link
FR (1) FR774954A (fr)

Similar Documents

Publication Publication Date Title
FR802857A (fr) Perfectionnements apportés aux parasols
FR774954A (fr) Perfectionnements aux paratonnerres, parafoudres et paragrèles
FR771328A (fr) Perfectionnement aux parafoudres
FR800004A (fr) Parafoudre perfectionné
FR777818A (fr) Parafoudres perfectionnés
FR771178A (fr) Parafoudres
FR779711A (fr) Parafoudre
FR777836A (fr) Perfectionnements aux hangars
FR826262A (fr) Parafoudre
FR736729A (fr) Perfectionnement des paratonnerres, paragrêles et parafoudres
FR827855A (fr) Perfectionnements apportés aux parafoudres
FR735628A (fr) Parafoudre
FR838241A (fr) Parafoudre
FR752180A (fr) Perfectionnements apportés aux lampes parafoudre et à toutes ampoules à vide
FR36172E (fr) Perfectionnements apportés aux parafoudres
FR765294A (fr) Perfectionnements apportés aux appareils dits <<arrache-poulie>>, <<arrache-moyeu>>, <<arrache-roulement>> et aux appareils analogues
FR787172A (fr) Parafoudre
FR767980A (fr) Perfectionnements aux sectionneurs
FR789428A (fr) Perfectionnements aux serre-câbles
FR804794A (fr) Perfectionnements aux appareils téléimprimeurs
FR774779A (fr) Perfectionnements aux entretoises réglables
FR50557E (fr) Perfectionnements apportés aux parafoudres
FR781135A (fr) Perfectionnements aux sectionneurs électriques
FR821045A (fr) Perfectionnements aux paratonnerres et aux paragrêles radioactifs
FR908669A (fr) Perfectionnements aux parafoudres