The depth of penetration into the armour/pipe can be calculated using the skin depth formula δ=503.292×ρ/(fμr) where ρ and μr are the resistivity and relative permeability of steel. To illustrate the infinite thickness assumption, consider a 132-kV steel pipe-type cable where the pipe...
ANSI|BS|DIN|EN|GB|IEC|IEEE|ISO|JIS|NF| 编号中文名称英文名称 ANSI E1.16娱乐技术.金属卤素灯镇流器动力电缆的结构标准Entertainment Technology - Configuration Standard for Metal-Halide Ballast Power Cables ANSI E1.27-1娱乐业技术.用于ANSI E1.11 (DMX512-A)和USITT DMX512/1990产品的便携式控制电缆的标准...
Firstly capillary tubes (5) and the filling stub (9) is fixed on it. ADVANTAGE - Gives better sealing compared to penetration of normal sealing mass. Gives good sealing without risk of damage to cable casing or core.ZAMZOW, PETER, BOCHUM, DEGIRBIG, REINHARD, NEUSS, DE...
BS EN 50289-4-2 通信电缆.试验方法规范.环境试验方法.水渗透性 Communication cables - Specifications for test methods - Environmental test methods - Water penetration BS EN 50289-4-6 通信电缆.试验方法规范.环境试验方法.温度循环 Communication cables - Specifications for test methods - Environmental tes...
Penetration Firestops UL 1480 - Standard for Speakers for Fire Alarm, Emergency, and Commercial and Professional Use UL 1481 - Standard for Power Supplies for Fire-Protective Signaling Systems UL 1482 - Standard for Solid-Fuel Type Room Heaters ULC 1482 - Space Heaters for Use With Particulate ...
编号中文名称英文名称 ANSI E1.16-2002娱乐技术.金属卤素灯镇流器动力电缆的结构标准Entertainment Technology - Configuration Standard for Metal-Halide Ballast Power Cables ANSI E1.27-1-2006娱乐业技术.用于ANSI E1.11 (DMX512-A)和USITT DMX512/1990产品的便携式控制电缆的标准Entertainment Technology - Standard ...
BS EN 50289-4-2-2001 通信电缆.试验方法规范.环境试验方法.水渗透性 Communication cables - Specifications for test methods - Environmental test methods - Water penetration BS EN 50289-4-6-2001 通信电缆.试验方法规范.环境试验方法.温度循环 Communication cables - Specifications for test methods - Envir...
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21. A method of sealing an end of each of one or more cables comprising (a) providing one or more shaped article of polymeric gel corresponding to the number of cable ends to be sealed, said polymeric gel having: (i) a cone penetration value of about 30 to about 400 (10-1mm), ...
is to safeguard the cable, in the event the cable jacket and shield are penetrated, by preventing or minimizing the entry of water into the interior of the cable and the deleterious consequences of flow of water liquid and vapor longitudinally within the cable from the point of penetration. ...