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Subject: Maximum width of local heat tracing panels shall not exceed 5 meters. gen. Здравствуйте, уважаемые специалисты, Не подскажете, как панели могут быть 5 метров длины в этом абзаце "Maximum width of local heat tracing panels shall not exceed 5 meters. Where necessary a back-to-back layout has to be taken into account." Весь контекст полностью ниже Спасибо за любую помощь. Уже спрашивал носителей.Types of Equipment Protection Equipment Protection type JB Ex “e” enclosure Local switches Ex “de” Temperature control systems Ex “i” Electrical heat tracing equipment shall be suitable for usage in zone 1. Performance Requirements Heating equipment that will undergo periodic steamcleaning shall have a minimum withstand temperature above the steam temperature, fora cumulative exposure time of at least 1000 hours, with power ON. Heat density of the heating elements shall be such the temperature limits for pipe,heaters or product are not exceeded. Power Supply, Distribution and Control of Heating Circuits For power distribution, local heat tracing panels shall be located in thefield (in classified area) close to the heat tracing load. These field distribution panels shallreceive power at 380V by 2 power cables from PURCHASER’s 380V MCC located in thenearby substation. Maximum width of local heat tracing panels shall not exceed 5 meters. Wherenecessary a back-to-back layout has to be taken into account. Self-limiting heating circuits for winterization heat tracing shall be controlled by PASC orsimilar controllers. Heating circuits with polymer insulated, mineral insulated and constant wattage heatingcables shall be controlled by local field controller/limiters. Voltage drop of the supply cable (from substation distribution board to the mostdistant heat tracing cable connection box) shall not exceed 5.5% at the full load condition. Local Heat Tracing Distribution Panels LHTDPs shall be equipped with an earth bar to which shall be connected thegrounding conductor of the incoming supply cable and of all outgoing cables. Each panel consists of 2 incoming circuit breakers with interlock and ATS and up to 84 outgoing circuits (nos as per requirement), equipped withRCBO (2 pole type and tripping contact). |
| Но ведь в тексте речь о ширине. Может, в этом всё дело? |
| конечно, ширина, Вы правы, это моя описка. И что в этом случае? |
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а в чем проблема, собственно? в тексте НЕ говорится, что ширина панелей составляет 5 метров. в тексте говорится, что максимальная ширина ... панелей не должна превышать 5 метров. это-то понятно? |
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