Vaults: Drainage and Waterproofing

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Arkansas Public Service CommissionOfficial agency material

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§ 192.189 Vaults: Drainage and Waterproofing#

(a)Each vault must be designed so as to minimize the entrance of water.#

(b)A vault containing gas piping may not be connected by means of a drain connection to any other underground structure.#

(c)Electrical equipment in vaults must conform to the applicable requirements of Class 1, Group D, of the National Electrical Code, NFPA-70 (incorporated by reference see § 192.7).#