1 Technical Requirements

7.12.4. Auxiliary System Relaying 86. 7.12.5. Major Interlocks 86. 7.12.6. Lockout Relay Actions 87. ... The joints of piping shall be welded and, for thread-type joints, sealed weld shall be applied. Demineralized water pipe shall be made of stainless steel. ... All unwrapped and un-lagged pipes outside buildings which are subject to corrosion ... ................
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