There is a standard that we can use as a refference for cable insulation resistance test values. The values are approved for international use because these values are from International Electrical Testing Association. The cable insulation resistance test values give us refference when the insulation of cables is good or not, more than that usually (…)
Megger test is a test conducted to determine the quality of the insulator of devices. This test is actually an insulator test of a device or cable. People often call it megger test is because the technicians often use the insulator test tool with the Megger brand. Though many brands of insulation device tests available (…)
Low Smoke Cable is governed by a standard that is IEC 61034. In the oil and gas industry, there are some companies that require certain conditions for cables that they use in electrical and instrumentation installations. One of them is for Low Smoke Cable. If you are an electrical engineer or instrumentation then you should (…)
There is common cable specification in oil and gas industry. The cable specification describes about Fire Resistant and Flame Retardant Cable. Fire Resistant Cable Fire Resistant Cable is made to comply with IEC 60331. Testing this cable type shall comply to the condition below: Temperature: 750°C Duration: 90 minutes Cable under nominal voltage Results: no (…)
Conduit Fill Chart is refference to check how many maximum conductors of cables can be put in one single size conduit. If cables exceed the maximum of allowed number then it could be struggle when first pulling work and higher potential to mechanical damage. Below is the Conduit Fill Chart for THWN and THHN cable (…)
Every electrical and Instrument engineer must understand about explosion proof junction box and panel if he will work for hazardous area (oil and gas). That is because he will face areas that have high risk of fire and explosion. An explosion proof junction box or panel is serving as a delimiter, while an explosion proof (…)
The very top of oil and gas business is safety. There is a popular adage in oil and gas world “This is not worth it if you get big profit but go home in partial condition”. According to safety, Low Smoke Zero Halogen Cable for oil and gas is sitting in the list that take (…)
In instrumentation and control system circumstance, the terms wet contact relay and dry contact relay are two that every instrument engineer should understand clearly. If an instrument engineer can’t figure them out then it must be a mistake! Here are explanations of wet and dry contact relay and some cases for make you easly figuring (…)
PSV (Pressure Safety Valve) and PRV (Pressure Relief Valve) are valve types used for process safety. The two terms are often used interchangeably and different opinions among engineers. However, more important is the engineer has to know exactly what he want. Difference between PSV and PRV is as follows. A PSV serves to safety, namely (…)
