THEM TO BE CHAIRMAN , AND RP COULD APPOINT THREE DIRECTORS , ONE TO BE DEPUTY CHAIRMAN ;
( B ) AEI AND RP COULD NOT ASSIGN THE BENEFIT OF THE AGREEMENT UNLESS CERTAIN CONDITIONS HAD BEEN FULFILLED , PRINCIPALLY AS TO THE AGREEMENT OF THE OTHER PARTY ;
( C ) AEI AND RP UNDERTOOK NOT TO COMPETE WITH THEIR JOINT SUBSIDIARY EITHER DIRECTLY OR THROUGH THEIR SUBSIDIARIES AND TO PURCHASE ALL THEIR VACUUM INTERRUPTER REQUIREMENTS FROM VIL PROVIDED THAT VIL SOLD SUCH VACUUM INTERRUPTERS ON COMPETITIVE TERMS " AS TO PRICE , SPECIFICATION , DELIVERY DATES AND OTHERWISE " OR UNLESS A CUSTOMER INSISTED UPON THE SUPPLY OF SUCH INTERRUPTERS FROM ANOTHER SOURCE ;
( D ) AEI AND RP UNDERTOOK TO MAKE AVAILABLE TO VIL RIGHTS IN PATENTS AND OTHER TECHNICAL INFORMATION RELATING TO VACUUM INTERRUPTERS ALREADY AVAILABLE TO THEM OR WHICH WOULD LATER BECOME AVAILABLE TO THEM . THEY ALSO UNDERTOOK TO ENSURE THAT VIL WOULD KEEP IN CONFIDENCE AND NOT DISCLOSE TO ANY OUTSIDE PARTY , OR USE , EXCEPT IN CONNECTION WITH A PURPOSE CONNECTED WITH THE BUSINESS , ANY CONFIDENTIAL INFORMATION ACQUIRED BY VIRTUE OF THEIR AGREEMENT ;
( E ) THE AGREEMENT , AS ALREADY STATED ABOVE ( I.A.1 ) , WAS TO CONTINUE IN OPERATION FOR A PERIOD OF 10 YEARS FROM THE DATE OF SIGNING AND THEREAFTER FROM YEAR TO YEAR UNTIL AMENDED OR TERMINATED AS PROVIDED IN THE AGREEMENT ( SIX MONTHS' NOTICE TO BE GIVEN ) .
5 . ACTING UNDER THE AGREEMENT WHICH WAS THE SUBJECT OF THE COMMISSION DECISION OF 20 JANUARY 1977 , VIL MANUFACTURED ONLY VACUUM INTERRUPTERS AND NOT THE CONTACT BREAKERS OR SWITCHGEAR INTO WHICH THEY WERE TO BE INCORPORATED . THE DESIGN AND SPECIFICATIONS FOR THE LATTER APPARATUS ARE PREPARED BY A MANUFACTURER , SPECIFICALLY TO ACCEPT THE TYPE OF VACUUM INTERRUPTER TO BE USED . CONSEQUENTLY THE VACUUM INTERRUPTER CANNOT NORMALLY BE CHANGED FOR ANOTHER TYPE OF INTERRUPTER IN THAT PARTICULAR EQUIPMENT . IT IS THEREFORE SOLD ONLY TO THE INTERMEDIATE CUSTOMER , WHO IS THE MANUFACTURER OF THE SWITCHGEAR APPARATUS FOR WHICH IT WAS DESIGNED AND MADE . THE MARKET FOR VACUUM INTERRUPTERS IS CONSEQUENTLY LIMITED TO THOSE COMPANIES OR UNDERTAKINGS WHICH MANUFACTURE , FABRICATE , CONSTRUCT OR ADAPT SWITCHGEAR APPARATUS WHICH IS BUILT AROUND , ADAPTED FOR , OR INCORPORATES THE VACUUM TYPE INTERRUPTER .
6 . IN 1974 A PROTOTYPE V5-INTERRUPTER ACHIEVED A SHORT CIRCUIT RATING OF 26,2 KA AT 11 KV , AND THE INTERRUPTER WAS PUT INTO PRODUCTION IN 1975 . WORK WAS THEN PUT IN HAND TO DEVELOP THE V8-MODEL AND TO ACHIEVE A VOLTAGE RATING FOR BOTH MODELS OF 24 KV . TECHNICAL PROBLEMS WERE ENCOUNTERED WHICH ARE BEING OVERCOME . SINCE 1977 THESE DEVELOPMENT EFFORTS HAVE ENABLED THE V5 TO BE RATED AT 31,5 KA AT 12 KV AND 20 KA AT 24 KV . THE V8 IS BEING DEVELOPED TO 20 KA AT 12 KV . THE PROBLEMS IN DEVELOPMENT ENCOUNTERED WERE