ESI 50-6 : ISSUE 1
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
PRESSURE SWITCHES FOR OIL-FILLED CABLE SYSTEMS
23-07-2013
12-01-2013
Determines the performance, materials and construction and performance tests for pressure switches with two sets of independently adjustable electrical contacts. The pressure switches are for use on oil-filled cable systems covered by ESI 09-3, 09-4 and 09-5. There are two Classes of switches, defined as follows: Class 1 - Suitable for indoor and outdoor locations exposed to the atmosphere and subject to ambient temperature variations within the limits of -10 deg C and +40 deg C, but not liable to flooding. Class 2 - Suitable for locations liable to flooding and subject to ambient temperature variations within the limits of 0 deg C and +25 deg C. Such conditions generally exist in pits or chambers below ground level.
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