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From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Instruction sheet detailing the apparatus required for insulation testing.

Identifier  ExFiles\Box 24\2\  Scan055
Date  20th October 1920
  
RR 300 (120B) (SF 349 24-1-19) MP 200552
88231
ROLLS-ROYCE LIMITED.
INSTRUCTIONS.
To: E.F.R.
Order No:
Customer's No.
Re: X1109.

Apparatus for Insulation Testing.

For the tests specified in the previous report 19-X-20, the following apparatus will be required.

① H.T. Transformers with switchgear as described 21-IX-20.

② Testing stand. To consist essentially of two circular plates of about 1' dia, well faced & rounded off at the edges. One well insulated, the other earthed and adjustable. Suitable terminals arranged to connect to transformers. A 1" tube or rod (metal) should also be provided, capable of being mounted on the (cont'd)

Signed
This Sheet must be filed on completion of the work.
  
  


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