as. In Proceedings of INTELEC, Wash- ington. 24.15 References Higginbottom, J.C. and Lea, H.H. (1988) EMC considerations for telecommunications switching centres. In Proceedings of IN- The International Telecommunications Energy Conferences (IN- TELEC, San Diego, U.S.A. TELEC) were conceived to fill a significant need for a forum Halliwell, B. (1979) Battery options for standby power. In Pro- dealing exclusively with telecommunications power and building ceedings of INTELEC, Washington. services developments and techniques. The first such conference Harrison, A.I., Bagshaw, N.E., and Thompson, E. (1982) Rack was held in 1978 and has been held at about yearly intervals ever mounted power for modern telecommunications systems - a since. sealed for life lead acid battery. In Proceedings of INTELEC, Wash- ington. Akerlund, J. (1983) Hybrid power systems for remote sites - Harrison, A.I. (1986) Rack mounted battery power for modern solar, wind and mini diesel. In Proceedings of INTELEC, Tokyo. telecommunication system - four years down the track. In Pro- Allen, P.A. (1986) An integrated power and building services ceedings of INTELEC, Toronto. management system. In Proceedings of INTELEC, Toronto. Harrison, A.I. and Niklas, H. (1985) International standards for Allen, P.A. (1990) The development of high reliability modular stationary lead acid batteries. In Proceedings of INTELEC, Munich. cooling systems in British Telecom, Supplement to British Telecom- Harris, W.P. (1987) UPS systems - static or rotary? IEE, Elec- mun. Eng., 8, Part 4, January. tronics and Power, July. Archer, C. (1979) Goonhilly satellite earth station - power plant, Henderson, P. (1979) A standard control system for thyristor British Post Office Elect. Eng. J. 72, October. rectifiers, British Post Office Elect. Engr. Journal, 72, April. Banfield, K.E. (1982) Telecommunications power system relia- Henderson, J.P. (1986) Uninterruptible power supplies for tele- bility in the U.K. In Proceedings of INTELEC, Washington. communications. In Proceedings 