MR MESSKO MSAFE, Руководство по эксплуатации

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5 Mounting
25 7232312/00 EN
5.2 Gasket requirements
Observe the following information when selecting the gaskets:
▪ Ensure that the gasket and sealing groove meet the latest technical stan-
dards.
▪ Use new and clean gaskets.
▪ Use O-rings or flat gaskets.
▪ Never use paper gaskets.
▪ Gasket material:
– The chemical resistance must be suitable for the insulating fluid in order
to prevent later leaks due to chemical degradation.
– The gasket material must be suitable for use at the specified ambient
temperatures and operating temperatures.
– The gasket material must be suitable for the prevailing relative humidity
on site.
– Elastomer gaskets must occupy a maximum of 80% of the sealing
groove when installed. The remaining 20% of the groove is required as
expansion space.
5.3 Fastening the Buchholz relay to the pipe
Fasten the Buchholz relay to the pipe, taking into consideration the following
points:
▪ The pipe from the Buchholz relay to the oil conservator must be routed
with a consistent incline of at least 2% (1.2°) to ensure the switching
gases can escape freely. The Buchholz relay is intended for a horizontal
operating position in close proximity to the on-load tap-changer head and/