Requirement of ship-shore insulating and earthing for chemical tankers
In order to provide protection against static electrical discharge (arcing) during cargo hose connection and disconnection, the
terminal should have ensured that hose strings and metal arms are fitted with an insulating flange or a single length of
non-conducting hose, to create electrical discontinuity between the ship and shore. All metal on the seaward side of the
insulating section should be electrically continuous to the ship, and all metal on the landward side should be electrically
continuous to the jetty earthing system.
The insulating flange or the single length of non-conducting hose must not be short-circuited; for example, an exposed metal
flange on the seaward side of the insulating flange or hose length should not make, contact with the jetty structure directly or
through hose handling equipment.
It should be noted that switching off a cathodic protection system is not a substitute for the installation of an insulating flange or a length of non-conducting hose.
Ship/shore bonding cables
A ship/shore bonding cable is not effective as a safety device and may be dangerous. A ship/shore bonding cable should therefore not be used.
Although the potential dangers of using a ship/shore bonding cable are widely recognised, attention is drawn to the fact that some national and local regulations may still require a bonding cable to be connected.
If a bonding cable is insisted upon, it should first be visually inspected to see, as best possible, that it is mechanically and electrically sound. The connection point for the cable should be well clear of the manifold area. There should always be a switch on the jetty in series with the bonding cable and of a type suitable for use in hazardous areas.
It is important always to ensure that the switch is in the open position before connecting or disconnecting the cable. Only when the cable is properly secured and in good contact with the ship should the switch be closed. The cable should be attached before the cargo hoses are connected and removed only after the hoses have been disconnected.
Related info:
Effects of Tugs and other craft alongside chemical tankers
Primary means of cargo connection between ship and shore
Means of access (gangways or accommodation ladders) safety precautions
Ship/Shore Safety Checklist
How to prepare a cargo loading / discharge plan ?
Technical readiness prior loading operations
Voyage planning and related considerations
Cargo sampling safety precautions
Cargo calculation
Signing a bill of lading and related guideline
Preparation for cargo operation
Preparing a cargo tank atmosphere
Cargo unloading operation safety precautions
Liaison between ship and shore
How to prevent cargo pipeline leakage
Ship shore safety checklist while alongside a terminal
Reference publications
Other Info:
Voyage planning and related considerations
Preparation for cargo operation
Preparing a cargo tank atmosphere
Cargo unloading operation safety precautions
Liaison between ship and shore
Cargo line leakage countermeasures
Checklist for handling dangerous liquid chemicals in bulk
Recommended temperature monitoring equipments onboard
Practical example of solving tank cleaning problems
Pre-cleaning /washing of cargo tanks
Risk & hazards of chemical contamination onboard
Cargo compatibility and reactivity of various chemical cargo
Poisoning and required first aid treatment onboard
Chemical tanker safe mooring practice
Determining presence of contaminants in chemical cargo
How to avoid solidification in cargo tanks ?
Cargo segregation requirement for chemical tankers
How to arrange disposal of tank cleaning waste ?
Restrictions on discharge cargo residue into sea
Retention of slops on chemical tankers
Vapour emission control requirement for chemical tankers
Handling self reactive chemicals
Handling of toxic chemical cargoes
Pre-loading meeting safety consideration
How to determine chemical cargo temperatures at different level ?
How to take cargo samples ?
How to avoid solidification in cargo tanks ?
Cargo line clearance requirement for chemical tankers
How to arrange disposal of tank cleaning waste ?
Care of cargo pums - risk of pump overload or underload
Main Info pages!
Home page ||| Chemical hazards ||| Cargo planning & Stowage ||| Cargo loading ||| Cargo documents ||| Safe stability ||| Cargo care ||| Preparation for unloading ||| Inert gas systems |||Gas freeing ||| Nitrogen handling ||| Chemical handling Safe practice |||Handling equipments ||| Cargo & Ballast pumps ||| Cargo tanks |||Tank cleaning |||Special cargoes |||Spills emergencies |||Fire protection
Chemicaltankerguide.com is merely an informational site about various aspects of chemical tankers and safety tips that may be particular value to those working in: Chemical Handling, Chemical Storage, Liquefied Chemical Suppliers, Chemical Shipping, Chemical Transportation, Chemical Terminals, Bulk Chemical Services and Chemical Processing. If you are interested in finding out more about chemical tanker guideline please visit IMO official website. For any comment please Contact us
Copyright © 2011 Chemical Tanker Guide.com All rights reserved.
It should be noted that switching off a cathodic protection system is not a substitute for the installation of an insulating flange or a length of non-conducting hose.
Ship/shore bonding cables
A ship/shore bonding cable is not effective as a safety device and may be dangerous. A ship/shore bonding cable should therefore not be used.
Although the potential dangers of using a ship/shore bonding cable are widely recognised, attention is drawn to the fact that some national and local regulations may still require a bonding cable to be connected.
If a bonding cable is insisted upon, it should first be visually inspected to see, as best possible, that it is mechanically and electrically sound. The connection point for the cable should be well clear of the manifold area. There should always be a switch on the jetty in series with the bonding cable and of a type suitable for use in hazardous areas.
It is important always to ensure that the switch is in the open position before connecting or disconnecting the cable. Only when the cable is properly secured and in good contact with the ship should the switch be closed. The cable should be attached before the cargo hoses are connected and removed only after the hoses have been disconnected.
Related info:
Effects of Tugs and other craft alongside chemical tankers
Primary means of cargo connection between ship and shore
Means of access (gangways or accommodation ladders) safety precautions
Ship/Shore Safety Checklist
How to prepare a cargo loading / discharge plan ?
Technical readiness prior loading operations
Voyage planning and related considerations
Cargo sampling safety precautions
Cargo calculation
Signing a bill of lading and related guideline
Preparation for cargo operation
Preparing a cargo tank atmosphere
Cargo unloading operation safety precautions
Liaison between ship and shore
How to prevent cargo pipeline leakage
Ship shore safety checklist while alongside a terminal
Reference publications
- IBC Code / BCH code
- International Safety Guide for Oil Tankers and Terminals (ISGOTT)
- ICS Chemical Tanker Safety Guide
- Ship’s “Procedure and Arrangements Manual” (Approved by Class)
- Certificate of Fitness for the Carriage of Dangerous Chemicals in Bulk
- Ship’s “VEC System Operational Manual” (Approved by Class)
- Ship to Ship Transfer Guide (Petroleum)
- Tank Cleaning Manual
Other Info:
Voyage planning and related considerations
Preparation for cargo operation
Preparing a cargo tank atmosphere
Cargo unloading operation safety precautions
Liaison between ship and shore
Cargo line leakage countermeasures
Checklist for handling dangerous liquid chemicals in bulk
Recommended temperature monitoring equipments onboard
Practical example of solving tank cleaning problems
Pre-cleaning /washing of cargo tanks
Risk & hazards of chemical contamination onboard
Cargo compatibility and reactivity of various chemical cargo
Poisoning and required first aid treatment onboard
Chemical tanker safe mooring practice
Determining presence of contaminants in chemical cargo
How to avoid solidification in cargo tanks ?
Cargo segregation requirement for chemical tankers
How to arrange disposal of tank cleaning waste ?
Restrictions on discharge cargo residue into sea
Retention of slops on chemical tankers
Vapour emission control requirement for chemical tankers
Handling self reactive chemicals
Handling of toxic chemical cargoes
Pre-loading meeting safety consideration
How to determine chemical cargo temperatures at different level ?
How to take cargo samples ?
How to avoid solidification in cargo tanks ?
Cargo line clearance requirement for chemical tankers
How to arrange disposal of tank cleaning waste ?
Care of cargo pums - risk of pump overload or underload
Main Info pages!
Home page ||| Chemical hazards ||| Cargo planning & Stowage ||| Cargo loading ||| Cargo documents ||| Safe stability ||| Cargo care ||| Preparation for unloading ||| Inert gas systems |||Gas freeing ||| Nitrogen handling ||| Chemical handling Safe practice |||Handling equipments ||| Cargo & Ballast pumps ||| Cargo tanks |||Tank cleaning |||Special cargoes |||Spills emergencies |||Fire protection
Chemicaltankerguide.com is merely an informational site about various aspects of chemical tankers and safety tips that may be particular value to those working in: Chemical Handling, Chemical Storage, Liquefied Chemical Suppliers, Chemical Shipping, Chemical Transportation, Chemical Terminals, Bulk Chemical Services and Chemical Processing. If you are interested in finding out more about chemical tanker guideline please visit IMO official website. For any comment please Contact us
Copyright © 2011 Chemical Tanker Guide.com All rights reserved.