Samenvatting
Two tunnels in Amsterdam have their roadways electrically heated. The system is employing insulated heating cables, which are inserted 3 cm. beneath the surface. The construction of the system is described.
Two tunnels in Amsterdam have their roadways electrically heated. The system is employing insulated heating cables, which are inserted 3 cm. beneath the surface. The construction of the system is described.
Elektrotechniek, Vol. 52 (1974), No. 8 (juni), p. 472-483, 25 fig., 2 tab.
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