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(Please note that this ISA standard is an IEC adoption with modifications. Therefore, the "Free Preview for Members" option is not available, and the Standards Redemption Coupon may not be applied to its purchase.)This standard specifies requirements for the construction, testing and marking for Group II electrical equipment with type of protection "n" intended for use in explosive gas atmospheres. This standard applies to electrical equipment where the rated voltage does not exceed 15 kV r.m.s. a.c. or d.c.
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