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City of Calgary. Electric System fonds Politics and government*
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Maintenance hole 480 vault.

Item consists of one original print of the vault. Title is taken from the subject matter of the photograph;Maintenance holes served as the junction centres for the underground conduit/duct system. The electric cables were connected and redirected as necessary in the maintenance holes. The transformers were also located in the maintenance holes;480 vaults have red wires, 208 vaults have black wires;Other photographs of maintenance holes are available;Photograph taken by Engineer Moe Jaffer

Typical maintenance hole.

Item consists of one original print of the maintenance hole. Title is taken from the subject matter of the photograph;Maintenance holes served as the junction centres for the underground conduit/duct system. The electric cables were connected and redirected as necessary in the maintenance holes. The transformers were also located in the maintenance holes;"Man hole";Probably #47 out of Substation #1;Photograph taken by Engineer Moe Jaffer;Other photographs of the maintenance hole are available

Maintenance hole 208 vault.

Item consists of one original print of the vault. Title is taken from the subject matter of the photograph;Maintenance holes served as the junction centres for the underground conduit/duct system. The electric cables were connected and redirected as necessary in the maintenance holes . The transformers were also located in the maintenance holes;480 vaults have red wires, 208 vaults have black wires;Other photographs of maintenance holes are available;Photograph taken by Engineer Moe Jaffer

Entrance to maintenance hole.

Item consists of one original print of the the street. Title is taken from the subject matter of the photograph;Maintenance holes served as the junction centres for the underground conduit/duct system. The electric cables were connected and redirected as necessary in the maintenance holes. The transformers were also located in the maintenance holes;Foot treads on top of vault covers for pedestrians to walk on were designed after the feet of Abe Wiens, a 6 foot 8 lineman who worked for the Electric System for many years and who has many photos of the first steel transmission line to be installed in 1961;Other photographs of maintenance holes are available;Photograph taken by Engineer Moe Jaffer

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