Rolls-Royce Archives
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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).
Instructions for insulation and fibres testing procedures.

Identifier  ExFiles\Box 24\2\  Scan053
Date  24th January 1919
  
RR 300 (120B) (SF 349 24-1-19) MP 200552
88229
ROLLS-ROYCE LIMITED.
INSTRUCTIONS.
To
Order No
Customer's No.
Re Insulation Testing (Cont'd)
Heat further & repeat & so on.
Plot a curve of temperature against spark potential.
④ Immerse a weighed sample in water for 100 hours, re-weigh, and note absorption. Test breakdown.
⑤ Place weighed samples in sulphuric acid & mineral oil respectively. Observe how affected. If no apparent effect, leave 100 hours re-weigh & test breakdown.
⑥ Fibres
① Test as 1-4 above.
② Heat in oven until carbonization
(Cont'd)
Signed
This Sheet must be filed on completion of the work.
  
  


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