PRODUCTION AT THE KABELWERK OBERSPREE

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP83-00415R003300110003-9
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 3
• Document Creation Date: December 15, 2016
• Document Release Date: September 10, 2001
• Sequence Number: 3
• Publication Date: October 11, 1949
• Content Type: REPORT

FO RM NC.
51-61
MAY 1949
COUNTRY
SUBJECT
PLACE
ACQUIRED
DATE OF INF
ACQUIRED
25X1A
Approved For Release 2001/12/05 : CIA-RDP83-00415R003300110003-9
CLASSIFICATION SECRET 25X1A
.CENTRAL INTELLIGENCE AGENCY
INFORMATION REPORT
Germany (Soviet gone)
Production at the
Kabelwerk Oberspree
REPORT NO.
CD NO.
DATE DISTR. 11 October-2 194S
.......'"otrimoW"MeN"ftWOMMIWOMWt.410.MUS460;
NO. OF PAGES
NO. OF ENCLS.
(LISTED BELOW)
SUPPLEMENT TO
REPORT NO.
The following has been reported concerning activities at the Kabelwerk
Oberspree.
25X1C
1. Lead electrolysis formerly carried out at the Kabelwerk has been transferred
to the Akkumulatorenfabrik (formerly the AFA).
2. The Russian Chief Engineer Kruglyi left on 10 June 1949 for the Crimea. He
has been replaced by Chief Engineer Poluschkin Konstantin Mitrofanowisch.
Professor Dahl, who is still sick, will soon return to his post.
3. A new type of cable, called the Karotta cable, is being produced. It is used
for measuring in boring holes.
Construction: 3 strands made of steel wire with copper; each strand is insulated
with very strong rubber, all three strands covered by synthetic material. Diameter
about 10 mm. The cable has a high tensile strength. About 10,000meters are
made per month.
4. Coal:1AI cable (sample is attached)of the following specifications has been
developed: Copper strand 2.6 mm 0; soapstone rings 11 mm 0 with 2.7 mm bore;
spacing of the rings 25 mm; easing made of purest aluminum 99.99%, bore 11 mm,
13.4 mm; on top of the aluminum casing there are two layers of paper and two
iron layers of stripping each 0.2 mm; these are covered by two to four layers
of impregnated paper or jute. Electric factors: ripple of 10% at 50 kHz to 4 MHz;
characteristic resistance 70 Ohm, *5 Ohm; capacity 50 pF/m; tension reduction
0.285 Neper each at 1 MHz; test voltage 1800 volt for three minutes; bending
radius about 800 mm.
5.? From four to seven such cables are combined into one unit. They are bound
?gitovAther by means of iron bands and impregnated jute. The cable is amazingly
%atn
. Up to the present only 125 m lengths have been ordered, as the tube
?ex-lading press does not permit a greater length. Lengths of 275 m are planned.
'^phosispieces which have been made so far have been pent to Russia for experiments.
areparations have been made to start production.
6. Ts sample is sent for your retention.
Approved For Release 2001/12/05 : CIA-RDP83-00415R003300110003-
Approved For Release 2001/12/05 : CIA-RDP83-00415R003300110003-9
Approved For Release 2001/12/05 : CIA-RDP83-00415R003300110003-9
Approved For Release 2001/12/05 : CIA-RDP83-00415R003300110003-9
Approved For Release 2001/12/05 : CIA-RDP83-00415R003300110003-9